Q THE GENUS CAPEX ON m1; ’ ARCTIC 5pm: OF ALASKA, Tums FOR THE- DEGREE or ms. MICHtfiAN STATE UMWERSN‘Y" ‘ wuum M MALCOLM 1959 ‘ LIBRARY *‘ n 06"? "JAY 1 [‘1' 347-0 2 THE GENUS CAREX ON THE ARCTIC SLOPE OF ALASKA an annotated, illustrated species list and key by William McLagan Malcolm II AN ABSTRACT Submitted to the College of Science and Arts, Michigan State university of Agriculture and Applied Science, in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Dapartnwnt of Botany and Plant Pathology 1959 ':1 old The geology, climate, soils, and vegetation of the Arctic Slope of Alaska are briefly described. The species of Carex recorded for the SIOpe are entered in a dichotomous key and their morphology, habitat, and distributions described. The ecological ranges of each species along the drainage and soil moisture gradient is noted, and de- tailed environmental measurements are tabulated for three common species. THE GEN”S CARE! ON THE ARCTIC SLOPE OF ALASKA an annotated, illustrated Species list and key by William McLagan Malcolm II A THESIS Submitted to the College of Science and Arts, Michigan State university of Agriculture andh Applied Science, in partial fulfillment of t e TOQuirements for the degree of MASTER OF SCIENCE DePartment of Botany and Plant Pathology 1959 TABLE OF CONTENTS Acknowledgments . . . . . . Introduction . . . . . . . . Area of the Study . . . . . Geology . . . . . . . . Climate . . . . . . . . son. 0 e e e e e O O 0 Vegetation . . . . . . . . . Methods and Sources . . . . Descriptions . . . . . . . . Illustrations . . . . . Distributions . . . . . Detailed Sampling . . . Results and Discussion . . . . Key to Species . . . . . . Glossary of Terms . . . . . Bibliography . . . . . . . . The Species , . . . . . . . (D'flvll'l? 13 13 15 16 21 22 . 38 #2 as a? ACKNOWLEDGMENTS I gratefully acknowledge my training in Arctic Slope ec010gy and tavonomy under Dr. John E. Cantlon, and I warmly thank him for providing gage; specimens and notes and for carefully reading the manuscript. I thank also Dr. John H. Beaman for his assistance with the taxonomic problems of arctic Q5525, and my wife, Nancy, who c0pied illustrations, assembled the manu- script, and encouraged me. L”. "hp: A...4 I" The genus Carex on the Arctic Slope of Alaska - ~---- an annotated, illustrated species list and key. macmcnon ' Carex species are often strikingly similar. Femald. (Fernald, 1950) notes '...an exceedingly critical genus. the study of which should be attempted only with complete _._—-._ and nature epecimens'. Polunin (1959), in his Circumpolar £2933}. £1332, includes 27 species complexes and ill-defined species ,.._ 1"“ in the 67 Qarices treated.. The confusion is in part a result of l. inadeQuate collecting and poor distribution of collecting sites and 2. incomplete descriptionsof new taxa by authors lacking field knowledge of arctic sedges. 1. Travel in the Arctic is tedious and expensive. The first collections were from coastal areas only. and the bulk of collecting today is on the coast or near carnps in nJor river valleys serviced by boats or light pontoon planes. Biological interest in arctic regions, however. has increased in the last 20 years, and collecting has stepped up substantially . Uncharted, remote areas are reached mre often and their floras mqnet ely sampled. .44 U ACKNOHLEDGMENTS I gratefully'acknowledge my training in Arctic Slaps ecolOgy and taxonomy under Dr. John E. Cantlon, and I warmly thank him for providing Qagg; specimens and notes and for carefully reading the manuscript. I thank also Dr. John H. Beaman for his assistance with the taxonomic problems of arctic 99535, and my wife, Nancy, who OOpied illustrations, assembled the manu- script, and encouraged me. "'-e. B:- 1.- , . , The genus Carex on the Arctic Slope of Alaska - ~~-~~an annotated, illustrated species list and key. INTRODUCTION / _C_a_r_g_x_ species are often strikingly similar. l'ernald (Fernald, 1950) notes '...an exceedingly critical genus, the study of which should be attempted only with complete and mature specimens'. Polunin (1959), in his Cigggmuolar Latic Flora, includes 27 species complexes and ill-defined species in the 67 Carices treated.. The confusion is in part a result of 1. inadequate collecting and poor distribution of collecting sites and 2. incomplete descriptions-of new taxa by authors lacking field knowledge of arctic sedges. 1, Travel in the Arctic is tedious and expensive. The first collections were from coastal areas only, and the bulk of collecting today is on the coast or near camps in nJor river valleys serviced by boats or light pontoon planes. Biological interest in arctic regions, however, has increased in the last 20 years, and collecting has stepped up substantially. Uncharted, remote areas are reached more often and their floras “squat ely sampled. 2. The general similarity among the arctic sedges demands detailed descriptions of proposed new taxa. Unfortunately, in the early 1800's several critical species were described briefly and in little detail. The authors of these ten were often not the collectors and therefore were unfamiliar with 1‘. the range of variation in the natural popula- tions sampled by the collections and 2. with other sedge species. loreover, the problem of distributing to authors the abailable descriptions and collections was worsened by barriers of distance and lenguage among arctic taxonomists. As a result, complex syn- onyw and obscure species limits are common in the literature. The field botanist quickly notes that published species limits often do not 'fit' the variation encountered in the field, and, more important, the separation of similar species is most difficult. Recently, several authors have published flores of small and large arctic areas of this hemisphere (Polunin, 1959; Porsild, 1951, 1955. and 1957; Hulten, 1941-19u8; Bocher, 1950; Damn, 19m; Raup, 19m; and Anderson, 19u3-19l+8). These floras are large tasks and the treatment of species is necessarily general, The genus M has received unusual attention because if the abundance and taxonomic difficulty of some species. Love, Love, and Raymond (1957) published a largely cytological study of the Cgpillares section of the genus. And, Duman (1958) reported introgressive hybridization between two of the common species, Carex m and 9&5 bigglowii. However, there is a pressing need for critical biosystematie study of the arctic species of the genus. This paper is not a taxonomic treatment, although an effort Imas been made to unravel two of the so-called species 'conplexes' (C, podocagpa and C, lggens). The objectives of the paper are l. a listing and key fbr the known Slope Cariceg, 2. consistent, detailed descriptions of morphology, habitat, and Slope distributions of each species, 3. general descriptions of the ecological range of each species, and 1+. detailed discussions of environmental! measurements for several common species. .‘s an. I sen-'1 'sl."l n: V, .. ‘b- u~ . U '- 'I 3" h I s u,‘ A U 0,. " In I‘. . 04.3: I IlaN l.'.1 r.‘ 3 TB AREA 9.0.2.121 The Arctic Slope is defined here as the area between the Arctic Ocean andthe crest of the Brooks Ranges. Extending 600 miles from W to I}, the Slaps is 60 to 230 miles wide and covers roughly 80,000 square miles, one- seventh the area of Alaska, and about the area of Kansas or illinnesota (Spotsman, 1951). The Arctic Circle and the crest . of the Brooks Range are nearly parallel, the Circle lying 95 miles to the south of the Range. (Betterman et a1. , 1958). The peaks of the Range rise in the east to 9000 feet, and fall progressively toward the west to 3000 feet. Lifting of the Range in the Early Cretaceous followed sedimentation in the Triassic, Jurassic, and Early Cretaceous (Britten, 1957). The Range and the foothills to the N are formed of the same geologic materials. The foothill ridgestrend 3-41 at the mountain front, and are lower toward the coast. The coastal plain varies in width from a few miles in the E to 100 miles S of Barrow. The sedimen- tsry materials ef the area range in age from Cretaceous to Pleistocene . Topographic map of the Slope in 1000-foot contours. sea level to 1000 feet 1000 to 2000 feet 2000 to 3000 feet 3000 to 6000 feet UIIII over 6000 feet —A‘—1rv_— _. , A_ N - Ox ‘3 Major rivers of the Slope, numbered raughly H'to B. [3/94 I: O a) (0‘9 0) (9 ‘9 at n. Pitmegea Kukpowruk Kokolik Utokok Kuk Kaolak Meade Tapag'oruk Ikpikpuk 10 Colville ll Itkillik 12 Anaktuvuk 13 Chandler 1h Killik 15 Kurupa 16 Etivluk 17 Kuparrk 18 Sagavanirktok 19 Canning 20 Sadlerochit 21 Hulahnla 22 Okpilak 23 Jase \OmflmmkkoJNt-J it. u H 1 If ‘. "s ‘- At no time has the Slaps been covered by a continental ice sheet. but six glaciations are recognized, the last very recent (Detterman et al.. 1958). At least one early glaciation was of piedmont type. Pleistocene glaciation was extensive in the Range it self, although there is little evidence of active glaciers in the western end. Moraines extend beyond the mountain front into the foothills and mantle the major river Valleys. Outwash extends to the coast in the east but grades into sediments in the central and western coastal plain. Numerous nunataks and a large driftless ares. harbored plant life throughout Pleistocene. The major rivers flow I through broad glacial valleys in the mountains, cut N (E in the case of the Colville) thrOugh the E41 trending ridges of the foothills, end meander and braid on the coastal flats (Detterman et a1., 1958). Rivers fed by current glacial melt-off are opaque with silt in the foothills, and deposit raw alluvium far into the coastal plain daring spring floods. 211322 Only fragmentary climatic data are available for the Slope ‘most weather stations are coastal and are manned only during the summer months (Britton, 1957). 1. Tempezgtnre, In general, the 9 winter months are cold and the 3 spring, summer, and autumn months cool. Freezing O tclperatures may occur at any time, but July is the warmest month, i: :1 v-' .,,,| 19- .e F. l“' u.“ u, «.1 followed by August and June. calmer (1955) mapped the July and January nornl isotherms reproduced on p. 9. Both diurnal and annual temperature extremes are greater inland than at the coast (Britten, 195?). Prec t . Precipitation is less than 8 inches per year, about ’4 inches in both warm and cold seasons (Spetsmen. 1951). (However, measured precipitation appears to be but 25-50 per cent of actual precipitation (Britten, 1957). More- over, Evaporation is low and moisture accumulates on the soil directly by condensatinn (Tedrow et a1., 1958). Winds are per- sistent and of moderatlly high velocity, and cloud cover and fog are common during the growing season, reaching maxima in September (Britten, 1957). Snowfall averages 10 inches on the coast, 16 inches in the foothills, and ddeper further inland (Britton, 1957). Snow is ecologically important as protection from winter wind and ice blast, a moisture source in spring melt-off, and, in late-melt areas, a factor shortening the growing season (Britten, 1957). Areas of late snow-melt are often unique in species comoosition (Cantlon, unpublished manuscript). 5.91.11 The Slope soils are classified bog, tundra, Arctic Brown, regosol, and lithosol (Tedrow et a1., 1958). The tundra and bog soils are the most extensive, dominating the coastal flatlands and the broad river valleys of the foothills. Arctic Brown is the one zonal soil mapped, and covers a scant l per cent of the Slope, largely in the foothills (Tedrow et al., 1958). July and January normal temperatures for the Slepe." ‘6- _ July nor-e1 temperature~eae use.“ oomé was con neerpep sheds» no»: hence no scanned» on» an use ..a sum usage casudaomaeu flashed Mada we awoke .m can one on: we fiancee.“ fished inch. 23 decrees .h on: no sense: finance .33.. en» huge—nuance ea used: was some." decodes Fuentes OHHQHMHHQdeNO toned 953mm madman canoes head: He.“ peso decades HdacuuwH BHRD ‘-.. u a. .J' I...H I, .. J ' "‘. r.- 13 IMHOIB AND BCIJ'RCES This paper is an annotated species list of the 9.33.9.2!- occurring on the Arctic Slope of Alaska. A total of 36 species are described. and illustrated and their North American and Slope distributions mapped. Desgriptiggs 1, Ormizatien Morphology, habitat, and abundance are described for each species. a, Morpholgg description. Each species is described in detail. However, if species A differs from species B in a few, distinct characters, only species A is fully described, and the description for species B reads 'Similar to species A, but (for instance) leaves involnte and the lowest bract reflected.‘ The characters most useful for identification are underlined in the description. The descriptions discuss at least the 27 morphological characters tabulated below, habit cull -——-—length, and length tin-relation to‘ the leaves. leaves-m—width. lowest bract of the inflorescence —~-—--shape, sheath, and length in relation to the inflorescence. spikesmnumber, position, sex, shape, and size. pistillate scale «fishapc, length in relation to perigynium, apex, margin, color, and midvein. perigyniummshare, size, margin, neuration, lustre, Color, beak, beak orifice, and stigmas. fl ".- {’3 Units at measurement are in the metric system. The dimensions are,averages for conservative morphological characters and ranges fbr variable characters. lg, Habitat dgggziption. The habitat information includes ’ vegetation type (barrens, upland meadow, shrub, wet meadow, marsh, [pp and aquatic), physiegraply (river terrace, moraine, alluvial fan, f talus slope), and elevation in feet (sea level to 5300 feet). More detailed information is summarized alphabetically by species on pp. 29-30. g, Apgndangg gstilatign. Abundance is generalized by the terms m, 'W, W. m, and aglgdant. Such desig- nations are vague, and refer only to relative abundance. (The individuals of an 'abundant' Carex species total many more than those of any ‘abundant' dicot.) 2“ Sources The list of species is compiled from collection"I determinations, Porsild (1957), Pelunin (1959), and Spetzmn (1951). Porsild treats the Canadian Arctic Archipelago, and therefore includes strictly eastern- species and excludes strictly western species. Spetzman's area includes both the Slope proper and the Noatak River drainage of the DeLong and Baird Mountains, and therefora includes several typically southern Alaska species. *collections by Cantlon et al..1953. Cantlon and Gillis 1957. Gentlen and Malcolm 1958, and Malcolm 1958- upu 'e. I‘A‘: ‘h‘l w ‘e 15 The disCussions of morphology, habitat, and abundance are culled from the examination of specimens, from field experience, collection records, transect studies, and literature. For 6 species‘I not collected, the descriptions were compiled from Porsild (1957), Mackenzie (19140), Femald (1950), and Bulten (1941-1916) . Lllggtntions r a i n The illustrations are ink line drawings, and include for each species at least habit, pistillate scale, and perigynium. However, if two species differ by only a few, distinct characters, only one species is fully illustrated. The drawings are intended as aids for rapid identification andztherefore include characteristic features of morphology. Labels for the drawings are the first letters of the alphabet. Magnification of each figure is noted beside its explanation—“for instance, b pistillate scale (lo/1). 2, 303123.. Most the drawings are based on specimens collected by Cantlon et al. in the years 1953, 1957, and 1958. Six species“ are drawn from descriptions and illustrations in Porsild (1957). Mackenzie (191m), and Robinson and Femald (1908), and are individually credited in footnotes on the drawings. 'W 9.._sl__e_aar os var-M w .10 inchenaii; W. and Mo 16 We W The collection locations are givnn by rivers, lakes, and towns, and the latitude and longitude noted. A nap of principal rivers of the Slope is on p. 6. All the collection sites are listed on pp. 18 and 19. None of the Porsild and Spetsman determinations are verified, and therefore to the citations are added '(according to Porsild)‘ ' and '(according to Spot zman)‘. The approximate North American range of each species is mapped in red below the species des- cription. 2I Sources a, Collection lgcations and range data. The 510pe distributions are compiled fro. Porsild (1957) (no collection numbers), collections cited by Spetsman (1951), and from collection records of Cantlon, Rebuck, and Bornann (Cantlon et a1. 1953). Cantlon and Gillie (Caution-Gillie 1957), caution and Malcolm (Cannon-Malcolm 1958), and Malcolm (1958). The North American range data are compiled from Robinson and Femald (1908). Porsild (1957). Pelunin (1959), Hulten (191+1-19u8), and Mackenzie (19%). W, The map of the Slope is based on the Brooks Range (63) and Point Hope (6’4) World Aeronautical Chart maps, compiled and printed in Washington, D.C., by the U. 5. Coast and Geodetic Survey (December 1951 revision, U. 5. Air Force Edition). Projection is the Lambert Conformal Conic at a scale of 17 1:1,000,000. The reduction for the Slope distributions is about 6:37. The map for North American range is taken from Rand McNally's Polar Map of the World, printed on p. 3 of the Rand McNallz- §t§gdggg World Atlas, 1951, Rand McNally, New York. Projection is Polar Aximuthal Eqvidistant at a scale of 1 inch 2: 1872 statute miles along the meridians. 18 Collection sites for specimen citations, numbered roughtly W to E. Point Hope, 68°22' N,n166°uo' W. 'Pitmegea River, 68°5h: N, 16h°35i W, Lake Noluk, u or Colville River, 68°h7' N, 160°00' w, Nuke. River, 6831;? N, 159°3o' w. Carbon Creek, 69 15' N, 158°30' V. Coast, 5' of Barrow ho miles (approx.). Barrow, 71°20' N, 156°uo' W. Atkasuk Village, Meade River, 700291 N, 157°25' w. Colville River, 68°5h’ N, 156°20' V. 10 E ofNigu River, 68°30' N, 156°27' V. 11 Howard Pass, Etivluk River, 68°15' N 156°50' w, 12 Alaktak, Chipp River, 60°b8' N, 155°oov w, 13 Price River, 69°52' N, 152°5o' W. 1“ Lake near Maybe Creek, 69 20' N, 154920‘ w, 15 Krrupa River, forks, 68°80' N, 155°1o' w. 16 3 miles E of Kurupa River, 17 Kurupa Lake, 68°22' N, 15h°ho' W. 18 Colemagavik River, 68°30' N, 15a°33' W. 19 X11111: River, 68°30' N, 15h°20' w, 20 nun: River, 68°10' N, 1514010' V. 21 Headwaters of Fish Greek, 69°55’ N, 152°50' W. 22 Confluence of Kagosukruk and 00171116 River, 69°46' N. 151°50' w, 23 Umiat, 69°22' N, 152°1o' W. 21:, 10 miles ssw of tTmiat, 69°1h' N, 152°27' V. ;, \Ocn-ocnun1r\orord 19 Collection sites for specimen citation (cont'd.) 25 Confluence of Itkillik and Colville Rivers, 70°13' N, 150°55' W. 26 8 miles N of Itkillik River, 69°50' N, 150°33' w, 27 Natavekruak Lake, heedwaters of Siksikpuk River tributary, 68°2u' N, 151°38' w, 28.Annktuvnk Pass, Tuliguk Lake, 68°2h' N, 151°25' w. 29 Ianayut Lake, Kanayut River, 68°23' N, 151°oo' w. 30 Itkillik River, lakes, 68°30' N, 150000. N, 31 [uperuk River, forks, 69°83' N, 189°3ov W. 32 Canning River, Shublick Springs, 69°28' N, lu6°lzt w, 33 Canning River, forks, 69°13' N, lb5°§h' W. an Ikhakpuk Valley, Canning River, 69°25' N, 1u5°3o' w. 35 Sunset Pass, 69°ho' I, luu°u5' w, 36 Anderson Point, 70°00' N, lhu°30' W. 37 Sadlerochit River, Lake Forks, 69°33' N, luu°u . w. 38 Sadlerochit River, Ignek Valley, 69 30' N, 1&5 00' W. 39 Lakes Schrader and Peters, 69°22' N, 1&5000' W, #0 12 miles N of Okpilak Lake, Okpllak River, 69°36' N, 1&3056' w, ul Okpilak Lake, Okpilak River, 69°23' N, lhh°0u' w, N2 5 miles sw of Okpilak Lake, Okpilak River, 69°22! N, luu°01i w, h} Dark Creek, 6»miles S of Okpilak Lake, Okpilak River, 69°18' N. luu°oo' W. on Barter Island, 70°10' N, 1u3°uo' W. “5 10 miles N of Jago Lake, Jago River, 69°45' N, 1h3°u2' w, “6 Jago Lake, Jago River, 69°“5' N. 1u3°“2' W. H‘ V. 21 t ed sam 11 Cent lon1 , Brown In the field season of 1958, 2, and Malcolm studied vegetation on 9 transects located in the foothills of the Brooks Range at the eastern end of the Slape3. Quadrat data include description of the soil to permafrost and per cent frequency and per cent cover for each species. The level of sampling is 1/16 of 1% with random quad- rats of 100 cm2 and 625 cm2. 1caution, John 3., Professor, Department 01' Botany and Plant Patholog, flichigan State University, East Lansing, MICHIGAN. 2Brown, Jerry, Graduate Assistant, Department of Soil Science, Rutgers University, New Brunswick, NEW JERSEY. 33".“ of the transGCtB were in the Ok‘pilak Ri‘v‘er valley within 12 miles of Okpilak Lake, 69°23' no 11114901.“ V. and two were in the 39.90 River valley in the vicinity of Jago Lake, 69°26' N, Item-1711.. fl. '3. v ‘3: II ‘A h v! \, REULTS AND DISCUSSION ci t i e an dra adi Distribution of a species is always the result of the interaction of the diversity of the species and the diversity of the environment (Thompson, 1959). The Invironnnntal factors controlling distribution of a Species through time are past and present climate, soil, geOgranhy, and biota (Good, 1953). The species factors controlling distribution are place and time of origin, potentiality of dispersal, and diversity of the species (Good, 1953). The control of plant distribution in the Arctic is characterized by a few, dominant environmental variables-mtemperature, precipitation, and soil. However, on a local level the principle physical and biotic environmental factors limiting distribution are 1. soil draier and moisture, 2. winter snow depth, 3. thickness of the organic layer, 1+. exposure to winter wind and snow blast, and 5. slope direction. Perhaps the first, soil drainage and moisture, is the most important. In general, soil moisture increases from upland to lowland along a. gradient of change. in. gradient is arbitrarily divided into 5 segments from dry to wet 1. barrens and rubble slopes, well-drained, 2. upland meadow, imperfectly drained, 3. wet meadow, poorly drained, 11.. mailsh, "1'? poorly drained, and 5. aquatic, standing water over 6 inches deep (Iodified from Tedrow and Cantlon, 1959). . 23 Individuals of a species vary in their ecological tolerances as well as in their morphology. And, a variety of habitats occur in a given locality. This diversity I of the local environment and diversity of individuals causes differential microdistributionl of a species. ’ r On pp. 2h-3O are plotted the soil moisture microdistributizms of the known Slope Cariees . i J The plettings simply indicate the segment of the moisture 1 J gradient occupied by each species. The 5 segments of the gradient ,J 2 1.;- ‘ are noted on the ordinate, and relative abundance on the abscissa (which is not drawn). Of the total 36 species studied, 28 per cent occur in only 1 segment of the moisture gradient, 19 per cent in 2 segments, 8 per cent in 3, 8 per cent in h, and 0 per cent in all 5. Three times as many species occur in the wetter half as in the drier half. And, three times as many species are restricted to marsh as to barrens. The number of species in each segment increases by about 50 per cent from the dry to the wet end, until in marsh there are 2.5 times as many species as in barrens. 1Microdistribntion-—---—-distribution on a strictly local level, 2 rusually in terms of one or a few dominant environmental variables. Abundance here is the gglativesagundance of ggg.species along the moisture gradient-———-——-—no attempt is made to graph.the actual abundance of any species. Therefore, the graphs of all the species have the same height. c elm-aim shrubby or grassy S—facing meadows. moraine slopes and alluvial fans 1900—14000. scarce. a/l l\ - O , amblzgrhzgcha wet meadows and marshes with or without standing water. river terraces, lower moraine slopes, and flat ridges, 70-2700. f/""—-r.~ ‘ occasional. e a / 3“ C, gnatilis var. stans marshes and wet river sands. moraine flats, river floodplains, stream sides, and lake margins, sea level to 3500. ’x \\ ammt e L—* ‘ ‘ I ‘ the dominant species of much of the marshland of the Slope, and restricted to marsh, dropping Out quickly in both wet meadow and aquatic vegetation a species of narrow ecoIOg-ical range but great abundance. 5, at 1"ng sca wet meadows and tussocky marshes. river terraces, alluvial fans, and lower moraine slepes, 70-2000. cannon. "xx c, bicglor wet sand or silt. labs margins, stream sides, and marshes. scarce . g_ l 'b-barrens, u-upland meadow, w-wet meadow, m-narsh, apaquatic. 25 C, cgpillaris s.1. barrens to wet meadow and the drier microsites of marshes. flats and slopes of mountains, moraines, and river valleys, 350-3500. . ,///’ \K‘\. common. L ‘ + ; é¥ a successful coloniser of disturbed peat and mineral surfaces of solifluxion lobes, frost boils or scars, and young river terrace soils. 0 t ta upland to wet meadows on organic or mineral soils. river terraces 1500-2500. scarce. . -I - L C, chordorrhiza pond margins and marshes, often in shallow stagnant water. river terraces, sea level to 3000. commas. k _’ J 0, glacialis frost boils, barrens, and.sparsely vegetated upland meadows. moraine crests and ridge tops, 350-3100. .~‘\ scarce. a L . . 4. 2.31m var. mhigega wet sand and clay. often near the nesting grounds of sea birds, (Porsild, 1957). sea coast. common on the coast. 9;.gzgpcrates wet meadows. moraine slopes, alluvial fans, and river terraces. l scarce e aw 26 W wet meadows to marshes. river terraces and pond margins, 350-1800. occasional. -— . - *- CI Emu; upland meadows tn organic or mineral soils. moraine slepes and dry river terraces, 1800-2000. ,... scarce. // \ lache ii wet sand or organic soil. marshes, pond margins, and stream sides, sea level to 3000. common. - /:\ Q, laxa sedge marshes. gentle moraine slopes of river valleys. 1500- very rare. .— - . In C, Ingens uPland heath meadows to wet meadows and cottongrass tussocks, moss tufts, and peat hummocks of marshes. flauntain flats, moraine slopes and ridges, alluvial fans, and river terraces, 70-4800. A. abundant. L l A 4 40 macloviana 9'33”. S-facing slopes, wet meadows, and drier sites in marshes. mountain flats, lake shores, and flat glacial outfsh areas. UMPCO e J.- —. .- p . "I u! t‘_ '. 27 W dune and shore vegptation on sandy and gravelly soils. seacosst, lake shores, and bluffs along stream sides, sea level to 3000. ,l-- scarce inland, common on the coast. .__i r . "; C. anacea wet meadows to marshes in bog soil, or sand and silt of river floodplains. river terrace flats, lake margins and stream sides, and alluvial fans, sea level to 3500. ////»~\\ common. “”‘ ‘ ‘ ‘ often a successful colonizer of older frost boils bn lake margins. C, micrOglochin wet meadows. moraine slepes and sloping river valleys. scarce. l__ . -jl \\ C, misandra upland meadows to marshes on organic and mineral soils. talus lepes of limestone, quartzite, and sandstone, and river terraces, sea level to 0000. i!/,Wg‘\\ common. -i 4 C, nardina barrens to upland meadows in soil or calcareous sand or gravel. steep taluS. till, or blowout slepes of mountains, moraines, and river banks, sea level to 4000. //"X f l; 44 scarce. In, ‘ Mamie barrens to wet meadows in usually calcareous soil, sand, or gravel. steep talus and moraine 310093. 350‘3500’ ’///’—\b\ scarce . 01‘ 9‘1 28 C, petricosa grassy, upland meadows on calcareous soils. steep talus slopes, 2000. scarce. /: \1‘ - C ca in marshes and along streams, often in sand. FM”! river terraces and moraine flats, 70-3500, {K common. ‘ L . , L X; C , podgcagpa upland meadows to marshes. river terraces, moraine crests and slopes, and alluvial fans, sea level to 5300. f" 3’ ‘H / x common. ‘ - ‘ ‘ —v C r are wet meadows and marshes, occasionally in stagnant water. river terraces and floodplains, sea level to 3500. C. rotundata marshes, often in stagnant water, often on raw mineral soil. river terraces and alluvial or moraine flats, sea level to 2500. x \‘1 occasional . ._w - . - #4 9, Lupest ris barrens and upland meadows in calcareous sandy, gravelly, or rocky soils. crests of ridges, knolls, and moraines, 50-3509- 2’ "\ ..‘-‘ . ‘ " A A #4 common . 'f :1 11 ' p1 I l, H ‘h ”a v; .h--_‘ eq 29 C, scigpoidea barrens to marshes on organic and mineral, often calcareous, soils. slopes and flats, sea level to 5000. f ,-ll“, /’ \‘,‘ ' abundant. f ‘ * ‘ ‘ * ' a species of wide tolerances to exposure, moisture, and soil conditions. 9, mbgpgthacea _ '—_!l wet sands and clays. ‘ saline tidal flats. sea level. scarce. n, on in .”34_ -_g { a strictly littoral species. W 881). spaniocar'oa barrens and upland meadows, on sandy, gravelly. and rocky soils. orposed crests and sIOpes of knolls and moraine!, 500-2000. / P8PC. /, l - . ll 0. tenniflora wet meadows and marshes, on moist or flooded organic or mineral soils. flats of river terraces and moraines, 500-2700. /--_ ra1.... - - /. \l A Lamina wet, tide-washed sands. sheltered sea and lagoon shores (Porsild. 1957). 883 19V€1¢, scarce, . i . . 9mm vet meadows to marshes, often on hummocks and tussocks. flats of river terraces and low moraines, 100-2500- /\\ \ , ;_d occasional. >ri ‘ 30 C. willi si tussock meadows and drier microsites of marshes, often on moss tufts, cottongrass tussocks, and peat hummocks. river terraces and alluVial fans, 100-3000. occas 101131. :_ A "A A ; 32 flph of abundance against soil moisture -' per cent cover J i [:3 per cent frequency LIL . . J 0 b c d e f g h i J k 1 I n 0 soil moi stnre eat egoriee m 1m 3013 (68 quadrats of 625 cm2) 'A e,‘ graph of abundance spinst soil moisture “0&8 , _ per cent cover . + 1:: per cent frequency 1 r 160 . . 2.0' an ‘ i I 1r w . b . 1.0 140 . a) . .. , , I e b e d e f g h 1 J k 1 . s . toil Ioisture cat egorieel Ca ~11! m; Vahlenb. var M t('Dre',}'.) Detour... (31 quedrsts of 625 c312) I.- II. 35 Environmental measurements obtained in the transect studies for the common species C. aquatilis var. stansl, G, lugens, and C. podocarloa2 are tabulated on pp. 36 and 37. 1 G atilis or C, stans of some authors. 2 W or C. microchaeta of some authors. CATEGORY c. pododgpg R.Br. (cont 'd.) per cent bryophyte cover per cent shrub cover (over 12 inches) per cent vascular cover macrorelief mesorelief microrelief 3? 'DATA (average of quadrats) 11 0.05 36 till and fan slopes polygons present 71 per cent solifluction present 17 per cent moss tufts present 3h per cent boulders present 25 per cent erosion evident 22 per cent CATIGORY 36 DATA (average of quadrats) C, gusting Wahlenb. var. stans (Drej.) Ostenf. (31 quadrats of 625 cm2) depth to frost slope angle snow depth.(estimated) snow melt-off (estimated) presence of carbonates per cdnt organic matter cover per cent bare rock and soil cover per cent lichen cover per cent bryOphyte cover per cent shrub cover (over 12 inches) per cent vascular cover macrorelief mesorelief microrelief G, Ingeng Holn (68 quadrats of 625 cm2) depth to frost slope angle snow depth (estimated) snow melt-off (estimated) 'preeence of carbonates per cent organic matter cover per cent bare rock and soil cover - per cent lichen cover per cent bryonhyte cover per cent shrub cover (over l2 inches) per cent vascular cover macrorelief mesorelief microrelief 15 inches close to 0 moderate to deep average none 22 0 05 Des 19 2 3h terrace and old lake bottom polygons present 20 per cent strangmoors present 13 per cent tussocks present b2 per cent moss tufts present 42 per cent 19 inches very slight to slight deep average none 15 0.05 6 8b 0.05 #8 terrace, fan, and low till polygons present bl per cent solifluction present 12 per cent mosS‘tufts present 56 per cent tussocks present 28 per cent £LJE§2£§£E§_R.Br. (65 quadrats of 625 cm2) depth to frost slope angle snow depth (estimated) snow melt-off (estimated) presence of carbonates per cent organic matter cover per cent bare rock and soil cover per cent lichen cover over #0 inches slight moderate to light average to early present 10 per cent 15 2 27 CATEGORY c. pododm‘ R.Br. (cont 'd,) per cent bryophyte cover per cent shrub cover (over 12 inches) per cent vascular cover macro relief mesorelief microrelief 37 'DATA (average of Quadrats) 11 0.05 36 till and fan slooes polygons present 71 per cent solifluction presEnt 17 per cent moss tufts present 3h per cent boulders present 25 per cent erosion evident 22 per cent Key to the Care: species of the l. 3. 3. Arctic Slope of Alaska. spike single, terminal. spikes 2 or more. 2. spike unisexual or uSually so. 2. spike bisexual. stigmas 2, perigyhium hairy. stigmas 3, perigynium not hairy. h. spike gynaecandrous, species littoral. a. spike androgynous, species not littoral. stigmas 3. stigmas 2. 6. leaves filiform, perigynium 5-6 mm long, subulate and reflected. 6. leaves not filiform, perigynium 3 mm long, lanceolate and not reflected. leaf sheaths brown, perigynium dull brown at maturity, leaves curled. leaf sheaths dark purple, perigynium shiny dark brown at maturity, leaves not curled. 8. leaves longer than the culm, perigynium stipitate. ' 8. leaves shorter than the culm, perigynium not stipitate. spikes sessile. spikes pedunculate. 38 2 9 3 a C, scigpoidea C. gznocrgtes iguana. 5 6 8 C, microglochin C. rupestris C, obtnsata C. harditla CI canitata. 10 16 ll. 11. 13. 13. 15. 15. 17. 17. 19. 19. perigyniul brawn-orange, perigynia in each spike erect. perigyhium green or gold, spikes 2—5, the lowermost perigynium elliptic and green, 10. spikes gynaecandrous . 10. spikes androgynous. spikes 3-7, the lowermost perigynia in each spike reflected. 12. spikes clustered at apex of the ailm. but separated on the culm. 12. spikes approximate pistillate scale silvery and transparent. perigynium lanceolate and golden brown, pistillate 9681. b rowne lfl. species littoral. 1“. species not littoral. nto dense, ovoid, lowermost spikes crowded i ium distinctly perigynia reflected, perigyn ' stipitate . spikes approximate on culm, lowermost perigynia erect, perigynium not stipitate. l6. stigmas 2. 16. terminal spike gynaecandrous. stigmas 3. tenminal spike staminate. lower spikes drooping on capillary peduncles, 18. perigynium distinctly beaked. peri- 18. lower spikes erect on stout peduncles, gynium short-beaked or beakless. dwarf littoral sedg pistillate spikes few—flowered. coarse bog and meadow sedge, culms longer than the leaves, pistillate spikes many-flowered. e, culms hidden among the leaves, 39 ll 15 Ca macloviana 12 13 1h 0, tvggmgiflora C lechenalii W C, glareosa var . agghi ggna C. amblyorhypcha' CI maritima 9L,Chordorrhig§_ 17 21 C bicolor W 18 g47physocarpa 19 C, subspathacea_ 20 21. 21. 23. 23. 25. 25. 27. 27. lowest bract longer than the inflorescence, 20. pistillate spikes long-cylindrical. llowest bract shorter than the inflorescence, 20.’ pistillate spikes oblong to cylindrical. terminal spike gnaedandrous, plant densely caes- pitOIO. terminal spike androgynous, plant caespitose or stoloniferons. d with sig-zag 22. pistillate spikes few—flowers rachilla. 22. pistillate spikes many-flowered.with spike axis hidden. lowest bract long-sheathing (over 10 mm). lowest bract not sheathing or sho rt-sheathing (less than 5 mm). pistillate spikes 2—ranked and few-flowered with sig—zag rachilla. pistillate spikes not 2-ranked and few- to many-flowered with rachilla hidden. 2J4. 2N. pistillate spikes drooping on capillary peduncles, leaves flat. pistillate spikes erect on capillary peduncles, leaves filifovm. s—margined and b—5 cm 26. perigynium scabrou long. 26. perigynium smooth-margined and less than h m long. pistillate spikes erect on stout peduncles, peri- gnius beak bidentate. drooping on capillary peduncles, pistillate spikes runcate or bidentate. perigynium beak t C atilis var. stang CI 133gens. 22 23 CI krapsei C. misandra 21+ 29 25 26 Qanaafldlesia. C. williams ii Q... pctrico 39; 27 _C ~_V§£1nata 28 41 28. perigynium distinctly stipitate. beak short and truncate, pistillate scale brown with green midvein. 9g~125§ 28. perigynium rounded at the base, beak long and bidentate, pistillate scale purple-black with ' C, atrofusca obscure midvein. 3%, pistillate spikes erect or sp“eading on short pedun- cles (2 II or less). 30 33. 2£;a1bo-nigrg 29. pistillate spikes erect or drooping on long peduncles. 30. terminal spike gynaecandrous. 30. terminal spike staminate or with a few pistillate flowers at the base. 31 31. terminal spike hidden between the two lateral pistillate spikes. C, holgstoma. 32 31. terminal spike conspicuous. 32. lowest bract short-sheathing, plant caespitose. W 32. lowest bract not sheathing, plant stoloniferous. Q._snpina ssp. spaniocagpa .IL lower pistillate spikes drooping'or nodding on slender peduncles. 3“ 33. lower pistillate spikes erect on stout peduncles. 35 3“. lowest bract short-sheathing, perigynium hearty beakless, spikes 2 or 3. C rariflora N 3“. lowest bract not sheathing, perigynium short- beaked, spikes 3-7. C, nodocarna 35. leaves flat, lowest bract erect. C, membranacpa 35. leaves infolute, lowest bract reflected. C. rotngdata 1+2 Glossary of Terms Edna!” (Carer) said of a spike in which the staminate flowers are borne above (acropetal to) the pistillate flowers. mmnmte close together but not teaching. mricle an ear-shaped appendage. hidentgte having two teeth. 11128221. having both stamen(s) and Pistil(s). m a modified leaf subt ending a flower or inflorescence. caespitosg growing in tufts or mats. glcareggs rich in lime. papillary hair-like. mm; touching. M the stem of grasses or sedges. filindricg shaped like a cylinder. figliaceops leafy. filifggm thread-like. 1m rolled longitudinally as in the leaves of Ammophila. 4m: lacking pubescence, smooth. W (Carer) said of a spike in which the staminate flowers are borne below (basipetal to) the pistillate flowers. m the general appearance of a plant. W the local environment of a plant, svch as marsh. m transparent or translucent. 43 Glossary of Term (cont'd.) median or central vein of a bract or leaf. $2121.21. (aims) mm with a small, abruptly pointed tip. lgcgglatg O 1129.211 / m (litoral) growing on seashores. m marked with veins or slender ribs. ngnelesg not nerved. gblanceolate O obgvate O obtuse blunt . ovate 0 ed c to supported by a flower stalk. W (Cgex) the inflated sac enclosing the achene. rachilla smll rachis, (Carer) the spike axis. 2mm (C_a_r_e_x_) turned downward or back on itself. mgr. a slender stolon. mm rough, armed with minute bristles. ml: (slam) a membranaceous bract lacking chlorophyll. 129—511.! lacking a stalk. m a tubular envelope. 112m (.9203) an inflorescence of sessile florets along a common aris. mm the part of the pistil that receives pollen. Glossary of terms (cont 'd.) stipitate. with a short stalk. WEE. producing runners or any basal branch which tends to root. I we m:- J mbplate A r tgncgte cut off transversely. W with stamens or pist ils but not both. “5 BIBLIOGRAPHY Anderson, J. P.. 1916-1952, Flora of Alaska and Adjacent Parts of Canada, Iowa State Coll. Journ. Sci., vol. 18-26. , Bliss, L. 0., and Cantlon: J. E., 1957, Succession on River Alluvium in Northern Alaska, Amer. Midl. Nat. 58. Bacher, T. H., 1950, Contributions to the Flora and Plant Geography of Western Greenland, Medd. o. Grl. 1147, 7:1-39. Britten, M. E., 1957, Vegetation of the Arctic Tundra, Arc. 13101., 18th Biology Colloquium, pp. 26-61. Churchill, E. D., 1955, Phytosociological and Environmental Characteristics of some Plant Communities in the Umiat Region of Alaska, Ecology 36:606-627. Churchill, E. D., and Hanson, B. C., 1958, the Concept of Climax in Arctic and Alpine Vegetation, Bot. Rev. zu:127-191. Conover, J. H., 1955, Micro-and Macro-climatolOgy or the Arctic Slape of Alaska, Bulletin of the Ecological Society of America, vol. 36, no. 3, p. 96.7. Detterman, R. L., Bowsher, A. L., Dutro, J. T. Jr., 1958, Glaciation on the Arctic Slope of the Brooks Range, Northern Alaska, Arctic (Journal of A.I.N.A.), vol. 11, no 1. Drury, w. H., 1956, Bog Flats and Physiographic Processes in the Upper Kuskokwim River Region, Alaska, Gray Herb. Contrib. 178. Duman, H. C., 19U1, the Genus Care; in Eastern Arctic Canada, Cath. Univ. of Am. Press, Washington, D.C. Duman, M. C., and Krysschuk, D., 1958, Introgressive Hybridization in the Care; gtaps-Bigelowii Complex, Bull. Torr. Bot. Club, 85 Fernald, M. L., and Robinson, B. L., 1908. GMY'S Manual 0f Botany. 7th Edit ion, Amrican Book Company, London. Fernald, M, L., 1950, Gray's Manual of Botany, 8th Edition, American Book Company, London. G00‘1. H., 1953, the Geography of the Flowering Plants, Longmans, Green and Company, London. p,- HUI t . so. um! .““I n.‘l ~ I i." Hulten, B., l9hl-50, Flora of Alaska and Yukon, Lunds Uhiv. Arrskrift. N. F. Ard 2. Bd. 37~h6. Love, .A., Love, D., and Raymond, H., 195?, Cytotaxonomy of Carex . Section Capillares, Can. Jour; Bot. 35. , Mackenzie, K. K., 19b0, North American Cariceae, New York Botanical Garden, vol I, II, plates 1—539. Polunin, H., 1959. Circumpolar Arctic Flora, Oxford, Clarendon Press. Porsild, A. B., 1951, Botany of Southeastern Yukon Adjacent to the Canal Road, Nat. Mus. of Can. Bull. 121. , 1955, The VasCular Plants of the Western Canadian ArCtic Archipelago, Nat. Mus. of Can. Bull 135. l , 1957. Illustrated Flora of the Canadian Arctic Archipelago, Nat. Mus. of Can. Bull. 1&6. Rand MCNally-Standard World Atlas, 1951, Rand McNally, New York. Raup, H. H., 19h7, The Botany of Southwestern Mackenzie, Sargentia 6:1-262. Sochava, V. B., 1933, Tundras of the Anabar River Basin, Izb. Gosud. GeOgr. Obshch. 65, 3co-36u. Spethan, L, A., 1951, Plant Geography and Ecology of the Arctic Slope of Alaska, M.S. Thesis, Univ. of Minn. Tedrow, J. C. F., Drew, J. V., Hill, D. E-. and Douglas, L. A., 1958, Major Genetic Soils of the Arctic Slope of Alaska, Journ. Soil Science, vol. 9, no. 1. Tedrow, J. c. F., and Cantlon, J. B., 1959. Concepts of Soil Formation and Classification in Arctic Regions, Arctic, (Jburnal of .A.I.N.A.), vol. 11, no. 3. Thompson, W., 1959, Lectures in Insect Ecoloyy, Michigan State University, East Lansing. “7 Carex albo-nigga Mack. Loosely tufted with a short, stout rhizome and persistent re 6 gaggl sheaths. Culm 25-h5 cm long, twice as long as the 2-3 mm Lowest bract foliaceous, short-sheathing (1-2 mm), wide leaves. shorter than the inflorescence. Spikes 3 or b, contiguous, the terminal gynaecandzous, clubushaped, 15 x 5 mm, the lateral pis- tillate, elliptic, 7 x 3 mm, erect on stout peduncles. Pistillate scale slightly longer than the perigyniung dark brown with a gig- Perigynium tinct Exalin margin and narrow buff-colored midvein. elliptic, smooth-margdned, nerveless, dull dark brown at maturity, with a short (O.h mm) shallowly bidentate beak. Stigmas 3. Carex albo—nigga Mack. i a habit (1/2) b pistillate scale (lo/l) c perigynium (IO/1) Care: glbo-niggg Mack. G // \—\ Lakes Schrader and Peters, 69°22' N, 1&5000' W, Snetzman (acc. to Spetzman) 668, Scholander and Flagg (acc. to Spetzman) 186. Okpilak Lake, Okpi‘.ak River, 69°23' N, inuoou' w, Cantlon-Gillie 57-1795, 57-17h9, 57-2073, 57-22h0, Cantlon-Malcolm 58-50h, Malcolm 5. Jago Lake, Jago River, 69°26' N, 1h3°h7' W, Cantlon-Gillis 57-17h8. Gag-3: anhlzgrhncha Krecs . Loosely caespitose with trailing. leafy stems and persistent dead leaves. Gulls 20-30 cm long, twice as long as the 0.7-1.5 mm wide leaves. WW. not sheathing, shorter than the inflorescence. Spikes 2—14, the lowest up to 5 m below the others, W1. obovate, 6 x 14 mm, m. Pistillate scale ovate, shorter than the perigmium, blunt, with s. wide hyalin margin and 2 chestnut stripes on each side of the buf£colored midvein area. Perigyninm elliptic, 2.7 x 1.2 mm. c s-ma ed / -n rv d d- s 0 mm on . StigIas 2. Carex amblzorhzgcha Krecs. a. habit (1/2) b pistilhate scale (lo/1) , c perigynium (IO/1) ‘ ngx gablzgrmcha Krécs. /‘ ’” W Umiat, 69°22' N, 152°1o' w, Porsild (acc. to Porsild). Kagoeukruk River, 69%6' N, 151°50' W, Cantlon et 91 53-368. 53-919. 53-515- Confluence of Itkillik and Colville Rivers, 70°13' N, 150°55' W. Cantlon et a1 53-584. 12 miles N of Okpilak Lake, Okpilak River. 69°36' N. 143050 w. Cannon-Malcolm 584148, 58-2147, 58—14147. Okpilak Lake, Okpilak River, 69°23' N. 1h3°h7' W. Cannon-Malcolm 58—155. Jago Lake, Jago River, 69°26' N, 11430147' W, Caution-Gillie 57-931, 57-1002. 57-11u2, 57-1158, 57-1581, 57-2108. Care: gnatiligflahlenb. var. gtans (Drej.) Ostenf. We sth basa he hsorl m, Culm 15-th cm long, 1.5 times the 2-5 m wide leaves. Lowest bract foliaceons, not sheathing, ggnal to grlonger than the inflorescencg. Spikes h or 5, the lowest remote, the terminal 1 or 2 staminate, oblanceolate, 15 x 5 mm (the lower smaller), the lateral pistillate, lingg; to cylindrical, 15-30 x 3-5 mm, erect on stout 2-6 mm long peduncles. Pist illate scale lanceolate, longer but narrower than the perigvniun, acute, lacking a hyilin margin, black, the midvein green. Perimium obovate to circular, 2.5 x 1.5 mm, smooth-margined, nerveless, dull cream or green, the beak very short (0.2 mm) and truncate. Stigams 2. 28.125 man Wahl+h v 1'. sign; (DreJ.) Ostenf. \\ :. V . \ ‘/ s habit (1/2) b pistillate scale (10/1) c perigynium (10/1) Care: gg‘ Eatilig‘lfahlenb. var. stans (DreJ.) Ostenf. , \l\ Pitmegea River, 68°5h' N, 16h°35' W} Cantlon-Gillie 57-297. Lake Noluk, upper Colville River, 68°47' N. 150°00' W, Spetzman (acc. to Spetzman) 3716. 3922, 2965, #265. Nukaugiver, 68°h5' N, 159°50' W, Spetzman (acc. to Spetzman) 3966, 73. Carbon Creek, 69°15' N, 158°30' w, Spetzman (ecc. to Spetzman) 2231. Barrow, 71°20' N, 1560u0' w, Scholander (acc. to Spetznan) 595. Colville River, 68°h5' N, 156°20' W, Spetsman (acc. to Spetzman) 2271. Howard Pass, Etivluk River, 68°15' N, 156°50' W. Spetzman (acc. to Spetzman) 2305. Alaktak, Chipp River, 600h8' N, 155°OO' W, Scholander (8.00. to spetzman) 173, Spetzman (acc. to Spetzman) 2hh2. Lake near Maybe Creek, 69°20' N, 15h°20' V. Spetzman (acc. to Spetzman) 25119. Kurupa Lake, 68°22' N. 15h°h0' W, Sgetzman (acc. to Spetzman) 3760. 0°1amnasav1k River, Mount Front, 68 30' N, 15u°33' w, Olson (acc. to Spetzman) 22. Killik River, 68010! N, 15h010' W, Lachenbruch (acc. to Spetzman) l6. Umiat. 69°22' N, 152°1o' w, Cantlon et a1 53.1, 53-110, 53-128, 53-1110, 53—201, 53-692, 5341065, 53-5067, Scholander (acc. to Spetzman) 172, Spetzman (acc. to Soetzman) 1259. 2700. 2731. Natavakruak Lake, headwaters of tributary of Siksikpvk River, 68°24' N, 151°38' W, Cantlon et a1 53-515h. E 0f Colville-River at delta. 70°13' N, 150°55' W, Cantlon et a1 53-589., 0 | O . ( t Amalctmmk Pass, Tulig'uk Lake, 68 2a N. 151 25 W. Spetzman 860- 0 SPetzma'n) 1758. KanEYut Lake, Kanayut River, 68°23' N, 151000' W, Spetzman (acc. to Spetzman) 1969. Itkillik River, lakes, 68°30' N, 150°OO’ W, Gudin (acc. to Spetzman) 6. Canning River, forks, 69°13' N, 1&5059' W, Spetzman (acc. to Spetzman) 360. Ikiakpuk Valley, Canning River, 69°25' N, 1&5030' W, Scholander and Flagg (acc. to Spetzman) 17h. Sadlerochit River, Ignek Valley, 69°30' N, 1150001 N, Spetzman (acc. to Spetzman) 871. Sadlerochit River, Lake Forks, 69°35' N, lhb°u5' W, Spetzman (acc. to Spetzman) 1057. Lakes Schrader and Peters, 69°22' N, 1U5°OO' W, Scholander and Flagg (acc. to Spetzman) 171. 12 miles N of Ok‘pilak Lake, Okpilak River, 69°25' N, 1u3°56' w, Cantlon-Malcolm 58-260. Ok‘plla‘c Lake, Okpilak River, 69°23' N, 1am°otu 'w', Cantlon-Gillie 57-2135. 57-2331. 57-2275~ Jago Lake, Jago River, 69°26' N, 143047' W. Cantlon—Gillie 57-927. 57-11111, 57—1hu6, 57-1591, 57—1610. Barter Island, 70°10‘ N, 143°U0‘ W, Spetzman (acc. to Spetzman) 1233. was signage. Schk. Loosely caespitose. the older leaves disintegrating. Calm 25-140 cm long, 3 times longer than the 2-h In wide leaves. Lowest bract foliaceous. MW. much shorter than the in- florescence. Spikes 3-5, remote, the “min 9], staginate, club- shaped, 15 x 5 mm, the lateral pistillate, ovate to elliptic, 10 x 6 ll, 1222121115 on long (10-110 41m) capingn peduncles, Pis- tillate scale lanceolate. equal to the perigynium, acute, wann- tipped, M with an obscure midvein. Perigynium ovate-lanceo- late, h x 1.5 mm, scabrous-mrgined, nerveless, W o e a no i - e Itmnglz bidengatg beak. Stigms 3. ‘/”.I I Care: at rofusca Schk. of a habit (1/2) b pistillate scale (lo/1) c perigvnium (lO/l) Care: atrofnsca Schk. Meade River, 70°b0' N, 157°20' W (approx.), Porsild (acc. to Porsild). Umiat, 69°22' N, 152°10' W, Cantlon et a1 53-281, Spetzman (acc. to Spetsman) 2683. Confluence of Kogosukruk and Colville Rivers, 69°h6' N, 151°50' W, Cantlon et a1 53-334. 8 miles I of Itkillik River. 69°50' N, 150031 W, Cantlon et al 53-h7u8. Confluence of Itkillik and Colville Rivers, 70°13' N, 150°55' V. Cantlon et a1 53-h78, 53-657. Okpllak Lake, Okfpilak River, 69°23' N, 11414001“ W, Cantlon-Gillie 57-2021, Cantlon-Malcolm 58-512. Mail-€301?“ 10. Jago Lake, Jag-o River, 69°26' N, 1s30u7' w, Cantlon-Gillis 57-951. 57-590, 57-989, 57-1h49, 57-15140, Cantlon-Malcolm 58-5118. mammal. Loosely caespitose, the old leaves persisting. Culm 5-20 cm long, nodding, 2-3 times the 1-3 mm wide leaves. Lowest bract foliaceous, black-auricled, equal to or longer than the inflorescence. Spike; 3, 29111192112. the seminal maecgdzmas, oblanceola te.to obovate, 7 x 3 mm, the lateral p1stillate, obovate, 7 x 3 mm,- erect on long (10 mm) peduncles. Pistillate scale obovate, shorter than the perignium. acute to mucronate, hyalin-margined, dark brown with a lighter midvein area. Perigynium obovate, 2.5 x 1.5 mm, W W, smooth-margined, faintly many-nerved, W In}; a van 39221 (0,; 9g) tmngate beak. Stigms 2. Carex bicolor All. a habit (1/2) 'b pistillate scale (19/1)"‘ c perigvnium (IO/l)"I "‘ redrawn from Mackenzie, 19%, plate 269. a and h- Qgex gapillarig L. W the deed leaves perSisting. Culm 5-20 cm long, mm, about 3 times the 1-2 mm wide leaves. Lowest bract folia- ceous, 191W”, shorter than the inflorescence. Spikes 3-5, remote, the terminal staninate, lanceolate, 5 x 1 mm, the lateral pistillate, cylindrical to oblanceolate, 7 x 2 mm, 0 a a ' - d w W. Pistillate scale ovate, shorter than the perigynium, acute to obtuse, with a broad hyalin mrgin, chestnut brown, the mid- vein obscure. Perigynium lanceolate, 3 x 1 mm, scabrOue-margin‘ed,vnot nerved, shiny dark brown, tapering to a long (0.8 m) hyalin-tipped, bidentate beak. Stigmas 3. 99,11; capillaris L, habit (1/2) pistillate scale (lo/l) perigynium (lo/1) terminal spike portion of inflorescence (lO/l) a. b c d Carex capillaris L. Lake Noluk, upper Colville River, 68°h7' N, 160°00' W, Spetzman (acc. to Spetzman) 3923. E of Nigu River, 68°30' N, 156°27‘ W, Cantlon et a1 53-h687. Lake near Maybe Creek, 69°30' N, l5h°20' W, Spetzman (acc. to Spetzman) 2551. Killik River, 68°30' N, 15h°2o' w, Cantlon et al 534817. Umiat, 69°22' N, 152°1o' w, Cantlon et 8.1 53-100, 53-12u, 53-293, Scholander (acc. to Spetzman) 161, 163, Spetzman (acc. to Spetzman) 1261. o o Confluence of Kogosukruk and Colville Rivers, 69 h6' N, 151 25' W, Cantlon 91‘ ‘31 53-“0’4. 53-439. 53-537. 53-942- Anaktuvuk Pass, Tuliguk Lake, 68°b2' N, 151°25' W, Spet2man (acc. to Spetzman) 1626, 1619. 1886. Itiakpuk Valley, Caning River, 69°25' N, 145030' 11, Scholander and Flagg (acc. to Spetzman) 16b. 0 Sadlerochit River, Ignek valley, 69°30' N. 1&5 00' W. Spetzman (see. to Spetzman) 1022. o Lakes Schrader and Peters, 69°22' N. 1&5 00' W, Scholander and F1 (acc. to etzman) 159. Sadlerzggit River, EZke Fbrks, 69°35' N. 144°“5' W; Spetzman acc. S e zman 1062. 12 miles 11th gkjflilak)Lake, Okpilak River. 69°36' N. ”3°59 W. Cantlon-Malcolm 58-258, 58-299- Okpilak Lake, Okpilak River, 69°23' N, 11114001“ W, Cantlon-Gillie 57-1900, Cantlon-Malcolm 58-22, 58-11146. 10 miles N of Jago Lake, Jago River, 690145' N, 111301;? W, Cantlon- Gillis 57-1668. Jago Lake, Jago River, 69026' N, 1&3007' w, Cantlon—Gillie 57-552, 57-508. 57-7149. 57-972. 57-1057. 57-1hh2. 57-1452. Care: M; L. Loosely caespitose, with dark brown basal sheaths and persisting old leaves. Culm 15-25 cm long, 1.5 to 2 times the filiform, 0.8 m wide, trigonousleaves. Lowest bract scale-like, not sheathing, much shorter than the inflorescence. §p_i,ke' siggée. terminal, andro- mgps, ovate, 6 x 6 m, Pistillate scale ovate, shorter than the perimium. acute, with a hyalin margin, chestnut brown, the midvein obscure. Perigynium lanceolate-ovate. 3.5 x 1.2 mm, smooth-margined, nameless, shiny brown above, tapering to a long (0.7 mm) bidentate beak. Stigmas 2. 933:; cgpitata L . a habit (1/2) b pistillate scale (10/1) c perimium (lo/l) Care: capitata L. } // Ikiakpuk Valley, Canning River, 69°25' N, 1h5°30' W, Scholander and Flagg (acc. to Spetzman) 150, Spetzman (acc. to Spetzman) 1254. Sadlerochit River, Ignek Valley, 69°30' N, lh5°00' W, Spetzman (acc. to Spetzman) 857. . Okpilak Lake, Okpilak River, 69°23' N, 1hh°0h' W, Cantlon-Malcolm 58-270. Jago Lake, Jags River, 69°26' N, 143°h7' W, Cantlon-Gillie 57-1613. I l 9 I MW Ehrh. §tglonigerggs, with long, few-goal“ Banners and leafy ascending M. Culn 10-20 on long. equal to or slightly longer than the 1-2 mm wide leaves. Lowest bract scale-like, not sheathing, much shorter than the inflorescence. Spikes 3-8, cgntigngns, sessilg, mgmogs, flogged into a head 10 x 15 m. Pistillate scale ovate, longer than the perigynium, acute. hyalin at the margins, dark brown with a green or buff midvein area. Midvein obsCure. Perigynium ovate, 2 x 1 mm, smooth-nargined, nerved, dull brown. slightly winged, with a 0.3 m, bidentate beak. Stigmas 2. Oarex chordorrhisa Ehrh. a habit (1/2) b pistillate scale (lO/l) c perigynium (10/1) Cage: cg rdo rrhiza Ihrh. fl' fl’ Jk Lake Noluk, upper Colville River, 680147' N, 160°OO' w, Spetzman (acc. to Spetzman) 1:269, #302, #366. Alaktak, Chipp River, 60°h8' N, 155°OO' W, Spetzman (acc. to Spetz- man) M6. Unlat. 69°22' N, 152°1o' w, Cantlon et a1 53-117, 53-119, 53-138, 53-279. 53-14567, 53-5068, 53-5245. Scholander (acc. to Spetzman) 1’48. Spetzman (acc. to Spetzman) 1256, 2216, 2682. Confluence of Itkillik and Colville Rivers, 70°13' N, 150°55' W, Cantlon et a1 53-5333, 53-1477. Anaktuvuk Pass, Tuliguk Lake, 68°21“ n, 151°25' w. Spetsan (acc. to Spetzman) 1780. o Kanayut Lake, Kanayut River, 68°23' N, 151 00' w, Spetzman (acc. to Spetzman) 1977. o Ikiakpulc Valley, Canning River, 69°25' N, 1&5 30' W, Scholander and Fla (acc. to etzman) 151. 12 milesgg of OkpilakspLake, Okpilak River. 69°36' N. 1h3°56' V. Cantlon-Malcolm 58—2b8. Jaso Lake, Jago River, 69°26' N, 143°47' W, Cantlon-Gillie 57-955. 57‘612‘9 57-11% . -.; . -. , u- u- - L2,; Culn 3-9 on long, 1.5 times the 0.3-0.8 mm wide leaves. owe b d s - MW). Spikes 3 or 1), somewhat distant, the terminal stam- inate, lanceolate, h x 15 mm, the lateral pistillate, 1w, 5 x 3 an, erect on short (1.5 III) peduncles. Pistillate scale ovate, shorter than the perigynium, obtuse, narrowly hwalin-margined, chestnut brown with a lighter green or ten nidvein area. Perignium ovate, Z x 1 ll, snooth—nargined, nerveless, dull brown above with a 193; Law. Stigma 3. Care: glacialis Mack. a habit (1/2) b inflorescence (IO/1) 9m; gagialis Mack. /7 // u Umiat, 69°22' N, 152010! w, Spetzman (acc. to Spttsman). 10 miles ssw of Umiat, 6901M N. 152°27' V. Cantlon et a1 5343+6. 53-45%. 8 miles s of Okpilak Lake, Okpilak River, 69°18' N, 1M°oo' 1!, (approx. ), Cantlon-Malcolm 58-1M. cho Lake, Jago River, 69°26' N, 1h3°h7' W. Cantlon-Gilli: 57-600. Cantlon-Malcolm 58-1528, 58—600. Care: glareosa Vahlenb. var mhigena Fern. ngggu gflgpitggg littgzfl species. Culm 10-25 cm long, twice the 1-2.5 mm wide leaves. Lowest bract scale-like, not sheathing, much shorter than the inflorescence. Spikes 2-14, more or less contiguous, the terminal W, obovate, 5 x 3 mm, the 1d eral ovate, 5 x 3 mm, gegsilg. Pistillate scale obovate, shorter than the perigvnium, obtuse, widely hyalin-margined, dark brown, the midvein area tan. Perigynium ovate, 3.5 x 1 mm, smooth- margined, mm-nerved, dull tan, W with a short (0.3 mm) mm beak. Stigmas 2. Gare: glareosa Wahlenb. var. ggphigena Vern a, habit (1/2)- b pistillate scale (10/1) c perigynium (lO/l)¢ 1 Porsild, 1957, p. 53, fig. 19a. and p. 48, fig. 1612. 1 Care: glareosa Wahlenb. far. agghiggna Fern. \a\ Coast SW of Barrow no miles (approx.) Porsild (acc. to Porsild). Qarex mocrates Wormskj . Stoloniferous, the old leaves persisting. Gulm 5-20 cm long, twice the filifom (0.5 mm) leaves. Lowest bract scale-like, not sheathing, much shorter than the inflorescence. Spike. single—,- terminal, ' ise a1 or occasio bise a the ilce than andromons), linear staminate) to cylindrical (pistillate), 10 x 3 mm. Pistillate scale ovate, shorter than the perigvnium, acute, hyalin-margined, brown, with a lighter midvein area. Perigynium elliptic, 3 x 1.5 mm, smooth-mrgined, many-nerved, somewhat shiny dark brown, ow e i ia flexed at matur , with a short (0.5 m) bidentate beak. Stigma 2. Carex gnocrat es Wormskj . a habit (1/2)* b pistillate scale (10/1) 0 perigynium (10/1)‘ " redraIn from Porsild, 1957, p. 50, fig. 17‘1 and 13-. #8: ,fig. 163' Carex glacialis Mack. a habit (1/2) b inflorescence (lo/1) Ogr_ex agialis Mack. Umiat, 69°22' N, 152°10' w, Spetzman (acc. to Spttsman). 10 miles ssw of Umiat, 69°11“ N, 152°27' w, Cantlon et a1 5348&6. 53.15%. 8 miles s of Okpilak Lake, Okpilak River, 69°18' N, 1M°oo' w, (approx.), Cantlon-Malcolm 58-14“. Jago Lake, Jago River, 69°26' N, 11430147' V, Cantlon-Gillie 57-600, Cantlon-Malcolm 58-h28, 58—600. Carex glareosa Wahlenb. var Egghigena Fern. Wea- Gulm 10-25 cm long. twice the 1-2.5 mm wide leaves. Lowest bract scale-like, not sheathing, much shorter than the inflorescence. Spikes Z—h, more or less contiguous, the terminal W1, obovate, 5 x 3 mm, the It oral ovate, 5 x 3 mm, gegsilg. Pistillate scale obovate, shorter than the perigvnium, obtuse, widely hyalin-margined, dark brown, the midvein area tan. Perimium ovate, 3.5 x 1 mm, smooth- margined, many-nerved, dull tan, W with a short (0.3 mm) M beak. Stigmas 2. Garex glareosa Wahlenb. var. gyphigena Fern a habit (1/2)- b pistillate scale (10/1) c perigynium (10/1)* l"redrawn from Porsild, 1957, p. 53, fig. 190. and P- “8. fié- 1612- ‘ Carex glareosa lahlenb. far. ggphigena Fern. Coast SW of Barrow no miles (approx.) Porsild (acc. to Porsild). gm; mocrates Wormskj. Stoloniferous, the old leaves persisting. Culm 5-20 cm long, twice the filiform (0.5 mm) leaves. Lowest bract scale-like, not sheathing, much shorter than the inflorescence. Spike. single, terminal, ‘ ise a1 0r occasio 1 bise a the ike then androgmogs), linear staminate) to cylindrical (pistillate), 10 x 3 mm. Pistillate scale ovate, shorter than the perigvnium, acute, hyalin-margined, brown, with a lighter midvein area. Perignium elliptic, 3 x 1.5 mm, smooth-margined, mny-nerved, somewhat shiny dark brown, ow eri iia flexed at matur with a short (0.5 m) bidentate beak. Stigms 2. Qarex mocrates Wormskj. a habit (1/2)* b pistillate scale (10/1) 0 perigynium (10/1)‘ * redrawn from Porsild, 1957, p. 50, fig. 17d and.:p..h8. fig. 163- Care: gzgocrates Wormskj. Price River, 69°52' N, 151°50' W, Spetzman (acc. to Spetzman). ms: 99.19.93.292 Drei. Stoloniferous, with light brown basal sheaths. Oulm 15-25 cm long, almst twice the 2 mm wide leaves. Lowest bract foliaceous, scabrous, black-auricled but not sheathing, equal to or shorter than the inflor- escence. W, the terminal staminate, lanceolate, nimte, 2, z 1, gm, hiddgn w en he te is t l , wer s rt- d s k s. Pistillate scale ovate, shorter than the perigynium, blunt, dark brown, lacing a prominent midvein or hyalin margin. Perigyniua obovate, smooth-margined, nervslees, dull brown above, with g veg: 923 (0,2 m) tmgcate bgg. Stigma 3. lostoma Drej, a habit (1/2) b lower portion of inflorescence (10/1) 4 Gare: hglostgma DreJ. I? , /’ Umiat, 69°22' N, 152°1o' w, Caution et a1 53-282. 0 12 miles N or Olmilak Lake, Ok'pilak River, 69°36' N, 1&3 56' w, Cantlon-Malcolm 58-253. Jago Lake, Jago River, 69°26' N. 110°“? W. Cantlon-Gillie 57-98“. Cantlon-Malcolm 58-555. Carex krapsei Boeck. Similar to glgcanillaris, but the terminal spikeggynaecandrOys. 21m kransei Boeck. a terminal spike (gynaecandrous) (10/1) L 291% kmsei Boeck. Umiat, 69°22' N, 152°10' W, Spetzman (acc. to Spetzman) 2198, 2663. Anaktumk Pass, Tuligak Lake, 68°21“ N, 151°25' W, Spetzman (acc. to Spetzman) 1763. Itkillik River, lakes, 68°30' N, 150°oo' W, Gudin (acc. t) Spetzman) 8. Sadlerochit River, Ignek Valley, 69°30' N, 1&5000' W, Spetzman (acc. to Spetzman) 9’40. . ' ' Lakes Schrader and Peters, 69°22' N, lh5°00' w, Scholander and Flagg (acc. to Spetzman) 160. Okpilak Lake, Okpilak River, 59°23' N, 1nu°ou' w, Cantlon-Gillie 57-1580. 57-2270. Jase Lake, Jago River, 69°26' N, lu3°u7' w, Cantlon-Malcolm 58.109. 92.313; Lachenalii Schk. “mil” ‘° W but the W' a tin t ed 0 Carex lac henal ii Schk. a pistillate scale (lO/l) b perigynium (10/1)"' "‘ redrawn from Porsild, 1957. P- ’48. fig. 1610' Carex lachenalii Schk. Kp\ Point Hope, 68°22' N, 166%0' w, Porsild (ace. to Porsild). Alaktak, Chfpp River, 60°08' N, 155°OO' W, Spetzman (ace. to Spetzman) 2M5. Lake Noluk, timer Colville River, 68°u7' N, 160°oo' w, Spetzman (ace. to Spetzman) 14006. Nuka River, 68°h7' w, 159°50' W, Spetzman (ace. to Spetzman) ##08. Umiat, 69°22' N, 152°10' W Scholander (ace. to Spetzman) 103, Spetzman (acc. to Spetéman) 048 . Sadlerochit River, Ignek Valley, 69 30' N. luSOOO' ". Spetzman (ace. to Spetzman) 9%. Anaktuvuk Pass, Tuliguk Lake, 68°Zh' N, l5l°25' W, Spetzman (acc. to Swetzman) hu09, Kanayut Lake, Kanayut River, 68°23' N, 151°00' W Spetzman (acc. to Spetzman uulo. IkiakPUk vtilley, Canning River, 69°25' N, 105°30' W, Scholander and flags (acc. to Spetzman) 198. Sadlerodhit River, Lake Forks, 69°35' N, lhh°h5' w. Spetzman (acc, to Spetzman) 1067, Lakes Sehrader and Peters, 69°22' N, 1h5°00' w. Scholander and Flfisg (ace. to Spetzman) 156, Spetzman (acc. to Spetzman) 550. Carer laxa‘Vahlenb. Loosely caespitose, with persistent older, outer leaves. Gulm 20-30 cm long, narrow, about twice the 0.5-1 mm wide leaves. Lowest bract {oliaeeous, long-sheathing $15-39 mm), ghggter than the inflorescence. Spikes 2 or 3, remote, the terminal staminate, linear-lanceolate, 15 x 2 mm, the lateral pistillate, loosely- floweredggoblong, 12 x 0 mm, droooing on long (ls-no mm) eaoillang pedrncles. Pistillate scale ovate, equal to the perigynium, acute, lacking a hyalin margin and prominent midvein, red-brown. Perigy- ninm ovate, 3 x 1 mm, smooth-margined, dill een granular, slight- lz stipitate, with.a very short (0.2 mm; truncate beak. Stigmas 3. Carex laxa Wahlenb. f a habit (1/2) b Distillate scale (IO/l) e perigynium (lo/l) L Gare: laxa Wahlenb. \\- h 6 miles N of Okpilak Lake, Okpilak River, 69°29' N, 1uu°001 w, Cantlon-Malcolm 58-262. Carex lgggens Helm Cgspitose, the outer, shim; tan leaf bases persisting. Roots covered with fine white hairs. Culm 15-LLO cm long, 1.5-3 times the 1-2 mm wide leaves. Lowest bract variable, scale-like to foliaceous, black-aurieled but not sheathing, shorter than the inflgrggcence. Spikes 2-0, mgre or legs contigaons, the terminal staminate, lanceolate to oblanceolate, 12 x ’4 mm, the lateral pistillate, cylindrical to ovate, 10 x 1» mt}, erect on stout, l-lO mm long peduncles. Pistillate scale ovate, shorter than the perimium, acute to obtuse, usually lacking a hyalin margin and prominent midvein, dull black or brown. Perigvnium M, 2.5 x 1.5 mm, smo‘th-margined, nerveless, dull green below and mottled with brown above where exposed to the sun, with an M (0,2 mm) truncate beak. Care: 13; gene Helm a habit (1/2) b pistillate scale (lO/l) c perigynium (1011) Carex luggns Holm // 1” ,7 Pitmegea River, 68°34' N, l6h°35' W, Cantlon-Gillie 57-177, 57-301. L of Nigu River, 68 30' N, 156°27' w, Cantlon et a1 53-4707. 10 miles ssw of Umiat, 69°1u' N, 152°27' w, Cantlon et a1 53-u523, 53-4865. Umiat. 69°22' N, 152010I w, Cantlon et al 53-13, 53-71, 53-11u, 53-1h6, 53-20h, 53-5028, 53-5090, Scholander (ace. to Spetzman) 189. Spetzman (ace. to Spetzman) 1361, 221E. Confluence of Kogesukrukkand Colville Rivers, 69°h6' N, 151°50' W, Cantlon et a1 53-h06, 53-h98, 53—091. 53-532, 53-5h3. Confluence of Itkillik and Colville Rivers, 70 13' N, 150°55' W. Cantlon et al 53-h71, 53-6h6. Natavakruak Lake, headwaters of Siksikpuk River.tributary, 68°Zh' N, 151°38' W, Cantlon et a1 53-5153. Sadlerochit River, Lake Forks, 69°35'IN. 18u045' we Spetzman (ace, t0 Spetzman) 1000a, 1085. o 12 miles N of Okpilak Lake, Okpilak River. 69°36' N. 1&3 56' W. Cantlon-Malcolm 58-201. 0kpilak Lake, Okuilak River, 69°23' N. 1U4°0“' V. Cant10n-9111198 57-1821. 7-1822, 7-1825, 57-1911, 57-2019, 57-2031, 57-213 , 57-2139, 27-21uo, 37-2197. Cantlon—Malcolm 58-299. 58-399. 58-301. 58-302, 58-303, 58-3ou, 58-305, 58-35“. 58-369. 58-370. -- , 58-3969 58-3970 .1 10 miles N of Jago Lake, Jago River, 69°u5' N. 1u3°u2' V. Cantlon-Gil-is 7-17669 -1 81. ’ Ja605Lake, Jag: River. 69°26' N, lh3°h7' W, Cantlon-Gillie 57-624, 57-980. 57-1025, 57-1139, 57-llhh, 57-1298, 57—1003, 57-lhhh, , 57-1uu7. 57-160 5. ' Gare: m d 'Urv. Densely caespitose, with tan basal sheaths. Culm 15-25 cm long, about twice the 1-2 mm wide leaves. nggst bract gcalg-likg, not sh a hi i e b a so b awl shorter than the inflorescence. §pi§g§ 5-2, sgssile, agggegated into an gvoid head 15 x Q mm, g1- obovate, 7 x 3 mm. Pistillate scale ovate, shorter than the perigynium, blunt, with a hyalin margin and tan midvein area. Perigynium lanceolate, 3 x 1 mm, slightly winged, faintly many-nerved, dull golden brown with a long (0.5 mm) bidentate beak. Stigmas 2. Carex maeloviana d'Urv. a habit (1/2) b pistillate scale (lO/l) c perigynium (lO/l) Cgex maeloviana d 'Urv. E of Nigu River, 68°30' N, 156°27' U, Cantlon et a1 53-4705. Okpilak Lake, 0kpiiak River, 60°23' N, 1H4°olu w, Cantlon-Malcolm 58-379. Jago Lake, Jago River, 69°26' N, 1a3°u7' w, Cantlon-Gillie 57473“. $1.1! gritia Gunn. nyar h t ck d erec ms. Oulm 5-10 cm long, 1 mm‘wide, slightly longer than the 0.7 mm wide, Spreading leaves. Lowest bract scale-like, not sheathing, much shorter than the inflorescence. Spikes 3-5, sessile, ggggggatgd intg g dengg, gvgid, 20 x 15 gm head, gndrggzggns, obovate, 5 x h mm, h w ia e . Pistillate scale ovate, obtuse, with a pponounced hyalin margin, shiny brown without a prominent midvein. Perigynium ovate, h x 2 mm, smooth-margined, nerveless, dull brown above and cream below, digtigetlz stipitgtg, tapering to a long (0.5 mm) conical, bidentate beak. Stigmas 2. gage; maritime. Gunn, a habit (112) b pistillate scale (lO/l) c perigynium (lo/1) Carex maritinn Gunn. Point Hope, 68°22' N, 166°40' W, Porsild (acc. to Porsild). Lake Noluk, upoer Colville River, 680147' N, 160°00' W, Spet zman (acc. to Spetzman) #247. Atkasuk Village, Meade River, 70°29' N, 157°25' W, Cantlon et a1 53'30’43’ 53‘30599 5347680 Barrow. 71°20' N, 156%0' w, Porsild (ace. to Porsild). Alaktak, Chipp River, 600u8' N, 1550001 N, Spetzman (acc. to Spetz- man) 2W. Confluence of Kogosukruk and Colville Rivers, 690(46' N, 151°50' w, Cantlon et a1 53-355. Anaktuvuk Pass, Tuliguk Lake, 68°2h' N, 151°25' w, Spetzman (acc. to Spetzman) 1929. Kanayut Lake, Xanayut River, 68°23' N, 151°oo' W. Spetzman (acc. to Spetzman) 1976. Anderson Point, 70°00' N, 1114030' w, Spetzman (acc. to Spetzman) 12M. Sadlerochit River, Ignek Valley, 69°30' N, 1145000' W. Spetzman (ace. tespetzman) 1002. Care: gmbranacea Hook. Stolonifems with WNW. Culm 20- to cm long, 1. b5 mm wide, equal to or longer than the 3-Q.ggw1gg lgvgg, Spikes 3-5, contiguous, the terminal 1 or 2 staminate, lanceolate, 12 x 3 m, (the lower smller), the lateral pistillate, cylindrical, densely flowered, 25 x 5 mm, erect on short (8 mm) stout peduncles. Pistillate scale ovate, shorter than the perigynium, blunt, hyalin- margined, deep brown with a lighter midvein area. W. W, smooth-margined, nerveless, shiy brgwn t9 almost black, with a short (0.4 mm) bidentate beak. Stigma 3. Carer membranaeea Hook. a habit (1/2) b pistillate scale (lo/1) c perigynium (lo/l) Care: membranae ea Hook . Lake Noluk. upper Colville River, 68°h7' N, 160°00' W, Spetzman (acc. to s etzman) 4000, 4277. Nuke River, 683155' N, 159°20' W, Spetzman (ace. to Spetzman) 3929. Meade River, 70%: N, 157°20' w, Cantlon et al. 53-4769. . Barrow, 71°20' N, 156°40' W, (acc. to Porsild). Alaktak, Chipp River, 60°Q8' N, 15°00! N, Scholander (acc. to Spetzman) 169, Spetzman (ace. to Spetzman) 21441, Lake near Maybe Greek, 69°20' N, 151-”20' W Spetzman (acc. to Spetzman) 2552. Umiat, 69°22' N, 152°10' W, Cantlon et al. 53-202, Scholander (acc. to Spetzman) 167, Spetzman (acc. to Spetzman) 1262, 2377. Confluence of Kogosukruk and Colville Rivers, 69°Q6' N, 151°50' W, .ca'ntlon at 81' 53'3529 53-3969 53486: 53-(437, 53-5580 Netsvalauak Lake, headwaters of Siksikpuk River tributary, 68°2Lu N, 151°38‘ N, Cantlon etal. 53-5347. 8 Miles E of Itkillik River, 69°50' N, 150°33' W, Cantlon et 81. 53-57115. 0 o Anaktumk Pass, Tuliguk Lake, 68 2M N, 151 25' W, Spetzman (acc. to Spetzman) 1603, 1818, 2729. o Kanayut Lake, Kanayut River, 68°23' N, 151 00' W, Spetzman (ace. to Spetzman) 1968. Itkillik River, lakes. 68°30' N. 150°00' W. Gudin (ace. to Spetzman) 9. Basave-nirktol: River, forks, 69°30' N, ll+8°30' W Spetzman (acc..to Spetzman) 120. Canning River, Shublick Springs, 69°28' N, 1b6°121 w, Spetzman (acc. to Spetzman) 1457. 11:13ka Valley, canning River, 69°25' N, 1u5°3o' w, Scholander and. Flags (acc. to Spetzman) 170. Sadlerochit River, Ignek Valley, 69°30' N, lit/5000' W, Spetzman (acc. to Spetzman) B7h,.lO35. Sadlerochit River Lake Forks, 69°35' N, lutouy w, Spetzman (ace. to Spetzman) 1177. lakes Schrader and Peters, 69°22' N, 145°00' W, Scholander and Flagg (acc. to Spetzman) 165. 166..Spetzman (acc. to Spetzman) 692. 12 miles N of Okpilak Lake, Okpilak River, 69°36' N, 1143056I w, Cantlon-Malcolm 58-256. Okpilak Lake, Okpilak River, 69°23' N, lutoou' w. Cantlon-Gillie 57-2175, 57-2274, Malcolm 17. 55. Jago Lake, Jago River, 69°26' N, 1u3°u7I w, Cantlon-Gillis 57-720. 57-930. 57-1578. 57—1727. 57-2M8, Cantlon-Malcolm 58-5111». 92px mieroglochin Vahlenb. StoloniferOus, the leaves sparsely tufted, Culm 5-15 cm long, twice the 0.5 mm wide, igvglnte leaves. Lowest bract scale-like, not sheathing, much shorter than the inflorescence. Spike single, terminal, andromggs, lanceolate, 10 x 5 m, Pistillate scale ovate, shorter than the perimium, acute to obtuse, narrowly hyalin-margined, chestnut brown, the midvein lighter. Perimipm mfllate-lanceglate, 5 g Lam, distinctly reflexed at maturity. smoth—margined, faintly many-nerved, dull straw color, W to 3 Egg; 103g (2 mm) tglncate beak. Stigmas 3. Gare: gicggglgchin Vahl enb. i " redrawn from Porsild, 1957, p. 51, fig. 18a, and p. 14-8, fig. 166. a habit (1/2)e b pistillate scale (lo/1) c perigynium (10/1) 'I Carex microglochin Wahlenb. L\ Umiat, 69°22' N, 152010' N Porsild (acc. to Porsild), Spetzman (acc. to Spetzman) 26h2. Sadlerochit River, Lake Forks, 69°35' N, 1u4°u5' w, Spetzman (acc. to Spetzman) 1063. Qgrex misandga R.Br. Densely £32159”, the old, ggter lgaveg pggslsting. Gulm ZO-QO on long, nodding, slender, 5 times longer than the 1-2 mm wide, curved leaves. Lowest bract long-sheathing (8 g), tipped by a seabrous blade much shorter than the inflorescence. Spikes 3 or Q, remote, the terminal mecandrgas, club-shaped, 6 x Q m, the lateral pistillate, elliptic to obovate, 12 x 15 mm, 39.412.05.211 lggg (l5:30 mm} capillaiz pedpgcleg. Pistillate scale obovate, shorter than the perigynium, aCute, narrowly hyalin-nargined, brown with a prominent midvein. Perigynium lanceolate, 5 x 1 mm, m- l; scabmg-marglngd, few-nerved, dull tan mottled with brown, tapgglng 32 a veg long (2 m) bidentate beak. Stims 3. Gag: ampranacgg Hook . Stolonifoms. with W Calm 20410 on long, 1. 5 mm wide, equal to or longer than the 3 -Q flaw wide lav :3. V- 13150 30136-0: to walls, 007- 9:0 h- QI- ;~-'.‘! Spikes 3-5, contiguous, the terminal 1 or 2 staminate, lanceolate, 12 x 3 In, (the lower smller). the lateral pistillate, cylindrical, densely flowered, 25 x 5 an, erect on short (8 mm) stout peduncles. Pistillate scale ovate, shorter than the perigynium, blunt, hyalin- margined, deep brown with a lighter midvein area. W. . smooth-margin“. marvels-9. WM. with a short (0.1+ mm) bidentate beak. Stigmas 3. Carer membranacea Hook. a habit (1/2) b pistillate scale (IO/1) c perigynium (lO/l) Care: membranaeoa Hook. Lake Noluk, upper Colville River, 68°47' N, 160°OO' W, Spetzman (acc. to s, otzman) uooo, u277. Nuka River, 683(45' N, 159°20' w, Spetzman (acc. to Spetzman) 3929. Meade River, 70°h0' N, 157°20' W, Cantlon et al. 53-14769. . Barrow. 71°20' N. 156%0' w, (acc. to Porsild). Alaktak, Chipp River, 60°h8' N, 155°00' W, Scholander (ace. to Spetzman) 169, Spetzman (ace. to Spetzman) Zhhl. Lake near Maybe Greek, 69°20' N, 15bz°20' W Spetzman (acc. to Spetzman) 2552. Umiat, 69°22' N, 152°1o' w, Cantlon et al. 53-202, Scholander (ace. to Spetzman) 167. Spetzman (acc. to Spetzman) 1262, 2377. Confluence of Kagosukruk and Colville Rivers, 69°b6' N. 151°50' W. [Cantlon at al. 53-352, 53-396, 53486, 53-187. 53-558. 0 Natavakmak Lake, headwaters of Siksikpuk River tributary, 68 2"" N, 151°38' I, Cantlon etal. 53-53%. 8 miles E of Itkillik River, 69°50' N. 150°33' W. Cantlon 0t 81- 53-57%. Anaktuvuk Pass, Tuliguk Lake, 68°21“ N, 151°25' w, Spetzman (acc. to Spetzman) 1603, 1818, 2729. o 1(th Lake, Kanayut River, 68°23' N, 151 00' W, Spetzman (acc. to Spetzman) 1968. Itkillik River, lakes, 68°30' N, 150°00' W, Gudin (acc. to Spetzman) 9. Sagavanirktot River, forks, 69°30' N, 1b8°30' W Spetzman (acc..to Spetzman) 120. Canning River, Shublick Springs, 69°28' N, 1u6°12' w, Spetzman (acc. to Spetzman) 1457. Ikiakrpuk Valley, Canning River, 69°25' N, 1&5030' W, Scholander and Flagg (acc. to Spetzman) 170. Sadlerochit River, Ignek Valley, 69°30' N, 1&5000' W, Spetzman (ace. to Spetzman) 8714,1035. Sadlerochit River Lake Forks, 69°35' N, muons. W, Spetzman (acc. to SUBtzman) 11770 Lake: Schrader and Peters, 69°22' N, lusooo' w, Scholander and Flag; (acc. to Spetzman) 165, 166,.Spetzman (acc. to Spetzman) 692. 12 miles N of Okpilak Lake, Okpilak River, 69°36' N, lu3056' w, Cantlon-Malcolm 58-256. Okpilak Lake, Okpilak River, 69°23' N, luboou' w. Cantlon-Gulls 57.2175, 517—2274, Malcolm 17. 55. Jago Lake, Jago River, 69°26' N, lu3°u7I w, Cantlon-Gillie 57-720, 57—930, 57-1578. 57—1727. 57—2ML8, Cantlon-Malcolm 58-5141}. Qgex geroglochin 'ahlenb. Stoloniferoxn, the leaves sparsely tufted, Culm 5-15 cm long, twice the 0. 5 mm wide, involntg leaves. Lowest bract scale-like, not sheathing, much shorter than the inflorescence. Spike single, terminal, androggggs, lanceolate, 10 x 5 m, Pistillate scale ovate, shorter than the perigynium, acute to obtuse, narrowly hyalin-margined, chestnut brown, the midvein lighter. 132W “Elam-lanceolate, 5 ; Lam, distinctlz reflexed at matgaritz, smooth-margined, faintly many-nerved, dull straw color, W to a veg 1955 (2 mm) tgmcate beak. Stigmas 3. - An...“- Cage: nicggglochin Vahlenb. a habit (1/2) * b pistillate scale (lo/1) c perignium (lO/l) 1' ' redrawn from Porsild, 1957. p. 51. figz 18a. and p. #8. fig. 166. Carex microglochin Wahlenb. g Umiat, 69°22' N, 152010I w Porsild (acc. to Porsild), Spetzman (acc. to Spetzman) 26h2. Sadlerochit River, Lake Forks, 69°35' N, lhhohfi' W. Spetzman (acc. to Spetzman) 1063. 99:92. W RoBr. Dermal! gasping, the old, ggter leave! pgzsigting. Culm 2040 OI long, nodding, slender, 5 times longer than the 1-2 m wide, curved leaves. Lowest bract longsheathing (8 g), tipped by a scabrous blade much shorter than the inflorescence. Spikes 3 or a, remote, the terminal fleeandrgys, club-shaped, 6 x 1+ an, the lateral pistillate, elliptic to obovate, 12 x 15 mm, W 1.23; @5520 mm} capillagz peduncleg. Pistillate scale obovate, shorter than the perigyniun, acute, narrowly hyalin-margined, brown with a prominent midvein. Perignium lanceolate, 5 x l m, m- W, few-nerved, dull tan mottled with brown, tapering to a veg long (2 m2 bidentate beak. Stignas 3. Oarex misandra R. Br. a habit (1/2) b pistillate scale (lo/l) c perignium (lO/l) .C_ar_ez ____misa_nd.ra H.131». Lake Noluk, upper Colville River, 68°h7' N, 160°00' W, Spetzman (acc. to Spetzman) 3228, noon. Barrow, 71°20' N, 156°h0' W, Scholander (ace. to Spetzman) 596. Alaktak, Chinp River, 60°h8' N, 155°00' W, Spetzman (acc. to Spetzman) Zhuj. Uhiat. 69°22' N, 152°10' W, Scholander (acc. to Spetzman) 182, Spetzman (acc. to Spetzmai) hull. Confluence of Itkillik and Colville Rivers, 70°13' N, 150°55' W, Cantlon et a1 53-628, 53-676. Anaktuvuk Pass, Tuliguk Lake, 68°2A' N, 151025' N, Spetzman (acc. to Spetzman) 1799, 1819, 1892. Kanayut Lake, Kanayut River, 68°23' N, 151°OO' W, Spetzman (acc. to Spetzman) 1972. Canning'River, forks, 69°13' N, lh5°5h' w, McGregor (acc. to Spetzm- man) 1 . Sunset Pasg, 69°b0' N, 11:14045' w, Spetzman (acc. to Spetzman) 1153. Sadlerochit River, Ignek Valley, 69°30' N, 195°00' W. Spetzman (acc. to Spetzman) 958. 973. Sadlerochit River, Lake Forks, 69°35' N} Inhohs' V. Spetzman (3°C- to Spetzman) 1058. Lakes Schrader and Peters, 69°22' N. IHSOOO' V. Scholander and Flagg (acc. to Spetzman) 176. o ' 12 miles N of Okpilak Lake, Okpilak River. 69°36' N. 1&3 56 W. Cantlon-Malcolm 58-2h5, 58—257. Okpilak Lake, okpitak River, 69°23' N, 1m°otu w, Malcolm 9. Jafio Lake, Jago River, 69°26' N, 193°“7' w. Cantlon-Gillie 57’801v 57-920, 57-952, 57-1135, 57-1u5u, 57-1523, Cantlon-Malcolm 58-516. Barter Island, 70010 N, 1u3ou0u w, Spetzman (acc. to Spetzman) 1223. Gare: m Fr. L- -. ._ as -.._ - :9 ‘3”J-JLCL W. Gulm lO- 0 on long, about equal to the (111193;; leaves. Lowest bract scale-like, not sheathing, mch shorter than the inflor- escence. Spike single, terminal, androgynous, ovate, 9 x 5 m. Putin-M scale ovate. WWW blunt. narrowly hnlin—aargined, dark brown with a broad pale midvein area. Perigyniun elliptic, h x 1.15 an, get; netlz scabrggs-nargngd, m1- m1. dull tan WW- Stieme 2. Care: nardina.Fr. a habit (1/2) b pistillate scale (lo/1) c perigynium (lo/l) Carex nardina Fr. W ‘1“kt3. Chipp River, 60°h8‘ N, 155°00' I, Spetzman (acc. to Spetzman) ##13. Headwaters of Fish Creek, 69°55' N, 152°50' W, Cantlon et a1 53-9732. 10 miles SSW of Umiat, 69°1h' N, 152°27' W, Cantlon et a1 53-h5h8. Anaktuvuk Pass, Tuliguk Lake, 68°21“ N, 151°25' w, Spetzman (ace. to Spetzman) 1872b. Kanayut Lake, Kanayut River, 68°23' N, 151°00' W, Spetzman( ace. to Spetzman) hulk. Sadlerochit River, Ignek Valley, 69°30' N, 1146000' W, Spetzman (acc. to Spetzman) 957. Lakes Schnader and Peters, 69°22' N, 1u5°oo' W, Spetzman (acc. to Spetzman) 620. Okpilak Lake, Okpilak River, 69°23' N. 1M°0M W. Cantlon-611118 57-1890, Cantlon-Malcolm 58-60. Dark Creek, Opkilak River 6 miles s of Okpilak Lake, 69°18' N. lthOO' W, Cantlon-Malcolm 58-lb0, 58-lh2. Jago Lake, Jago River, 69°26' N, 1u3°u7' w, Cantlon-Gillie 57-802, 57-723. Carex obtnsata Liljebl . Similar to G, upegtgis, but fifiglggiflgrg‘ns. the lower portion 9: the 931! ggzow and with magpie sheaths, the leaves 0.5-1 mm wide, and WW. 9gp; gbtnsata Liljebl . a habit (1 /2) b inflorescence (lO/l) Care: obtnsata Liljebl. Ir ”9 ' i l “a Lake Noluk, upper Colville River, 68ph7' N, 160°00' W, Spetzman (acc. to S etaman) 3669. Nuka River, 68 45' N, 159°50' W, Spetzman (ace. to Spetzman) 36’43 . 4058. 3 miles E of Kurupa River, 68°28' N, 154°50' w. Cantlon 9t 31 53-h539- Uniat, 69°22' N, 152°1o' w, Cantlon et al 53-85, Scholander (acc. to Spetzman) 15h, Spetzman (ace. to Spetzman) 1358, 2185, 2399, 2 Anaktuvuk Pass, Tuliguk Lake, 6892h' N, 151°25' W, Spetzman (acc. to Spetzman) 1680. Sadlerochit River, Lake Forks, 69°35' N, lhhoh5' W, Spetzman (acc. to Spetzman) th7. Lakes Schrader and Peters, 69°22' N, 1&5000' W, Spetzman (acc. to Spetzman) 1252. Okpi’ak Lake, Okpilak River, 69°23' N, 1hh°0b' V, Cantlon-Malcolm 58-118, 58-178, 58-353, Malcolm 2, u, 32. 34. 37. 51- 10 miles N of Jago Lake, Jago River, 69°h5' N, 1h3°h2' w, Cantlon- Glllls 57-1750. 9:13.! pgggeosa Dewey Loosely caespitose, with stout stolons, the old, outer leaf bases persisting. Oulm 25.50 en long, twice the 1-2 mm wide leaves. Lowest bract foliaceous, W, shorter than the inflorescence. : - .1 lanceolate, 10 x 3 m. the lateral pistillate, oblong, 15 x 5 sin, .50 m a i1 6. else. Pistilla e scale obovate, shorter than the perigynium, acute, distinctly hyalin- nrgined, red-brown with a lighter midvein area. Perigynium lanceo- late, 5 x 1 an, scabrous-nargined, nny-nerved, dull red-brown, with a 3297‘! (0.1+ m2 bidentate beak. Stims 3. Mammm‘v. ~\ habit (1/2) pistillate scale (lO/l) perigynium (IO/l) lowest bract of inflorescence (lO/l) Care: pet ricog Dew. " % 0kpilak Lake, Okpilak River, 69°23' N, 1144001“ w. Cantlon-Malcolm 58-502. 58-503. E1125 pigeocazpa Presl- Coarse, with a stout rootstock. Culm 20-60 cm long, about equal to the 3-5 mm wide leaves. Spikes 3 or 1+, remote, the terminal 1 or 2 staminate, linear, 20 g 1+ m, the lateral pistillate, cylindrical, 20 x 7 mm, the upper erect and the lower drooping on long (10-30 mm) capillary peduncles. Pistillate scale lanceo- late, mch nazrgwer Ed ghofigz tag the pgriminm, acute, hyalin- tipped, somewhat. shiny, dark brown, with a conspicuous narrow mid- vein. .Perignium lanceolate, 5 x 2 mm, smooth-margined, faintly many-nerved, shiny brown above and cream below, with a short (0.5 mm) bidentate beak. Stigmas 2. 2922 291mm Presl. a habit (1/2) b pistillate scales and perigynia (lo/1) Carex.pgtsocagpa Presl. Lake Noluk, upper Colville River, 68°h7' N, 160°00' V, Spetzman (acc. to Spetzman) 3921. Nnka.River, 68°h5' N, 159°50' V, Spetzman (acc. to Spetzman) “059. Howard Pass, Etivluk River, 68°15' N, 156°50' W, Spetzman (acc. to Spetzman) 2311. 3 miles E of Kurupa River, 68°h0' N, 155°10' V, Cantlon et a1 53-h6hl, 53-h6h2. Umiat, 69°22' N, 152°10' w, Cantlon et a1 53-132 53-519u, 53-5255. Confluence of Kagosrkruk and Colville Rivers, 69 “6' N, 151°50' W, Cantlon et a1 53-3u8, 53-376, 53-377. 0 Confluence of Itkillik and Colville Rivers, 70 13' N. 150°55' W. Cantlon et al 53-h75, 53-587. 57—591. 0 Anaktuvuk Pass, Tuligmk Lake, 68°2u' N. 151 25' W. Spetzman (ace- to Spetzman) 1919. Kanayut Lake, Kanayut River, 68°23' N, 151°00' W, Spetzman (acc. to Spetzman) 1973- Canning River, Shublick Springs, 69°29' N. 145°12' w Spetzman (ace. to Spetzman) 455. ‘ Sadlerochit River, Ignek Valley, 69°30' N. 195°03' W, Spetzman (acc. to Spetzman) 876. Sadlerochit River, Lake Forks, 69°35' N, lhb°h5' W, Spetzman (acc. to Spetzman) 1038. Lakes Schrader and Pete”8. 69°22' N. 195°00' w~ Scholander and Flag (acc. to Spetzman) 178. ‘1 Okpilak Lake, Okollak River, 69°23' N, luuoou' w, Cant1on-Gl--1s 57-195h, Cantlon—Malcolm 58-166, 58-398, 58-513, 58-526, 53-588, Malcolm 8. Jago LAke, Jago River, 69°25! N, 143°h7' W, Cantlon—Gillie 57-1609. 57-1729. I l l l Care; gariggra (Wahlenb.) Smith Stoloniferous, with magpie basal sheaths and persisting old leaves. Oulm 10-20 cm long, twice the 0.8-1.5 mm wide leaves. W aw -s ed 1 n a ricled m me she h e c mch shorter than the inflorescence. Spikes 2 or 3, remote, the terminal staminate, oblanceolate, 10 x 3 mm, the lateral pistillate, abouts. 9 x 5 min. W- “9.1.”.- Pistillate scale ovate, equal to or shorter than the peri- gynium, acute, dark brown, not hyalin-margined, with a prominent, lighter midvein. Perignium ovate, W, h 11.5 mm, smooth-margined, faintly many-nerved, dull green, with a very short (0.1 mm) black bidentate beak. Stigmas 3. Carex rariflora (Wahlenb.) Smith a habit (1/2) b pistillate scale (lO/l) c perigynium (10/1) Care: rariflora (Wahlenb.) Smith Pitmegea River, 6805!.“ N, 16h°35' W, Cantlon-Gillie 57-166. Lake Noluk, upper Colville River, 68°u7' N, 160°oo' w, Spetzman (acc. to Spetzman) h366a, ($305. Colville River, 6805!.” N, 155°00' W, Spetzman (acc. to Spetzman) 2207, Alaktak. Chipp River, 600148' N, 155°00' W, Spetzman (ace. to Spetz- man) M16. ' . Umiat, 69°22' N, 152°10' W, Cantlon et a1 53-130, 53-23h, Scholander (acc. to Spetzman) 1140, 1’42, 1141+, Spetzman (acc. to Spetzman) 1357, 2215. o , Confluence of Kogosukruk and Colville Rivers, 69 “6' N, 151 50' V. Cantlon et al 53-370, 53-1420. Natvakruak Lake, headwaters of tributary of Siksikpuk River, 68°2h' N, 151°38' N, Cantlon et a1 53-5155. Confluence of Itkillik and Colville Rivers, 70°13' N, 150°55' W, Cantlon et a1 53-581. A118|~14d'«ulr'ulc Pass, Tuliguk Lake, 68°24| N, 151°25' W, Spetzman (acc. to Spetzman) 1923. o Ka-nay'ut Lake, Kanayut River, 68°23' N, 151 00' w, Spetzman (acc. to S t m 1 ha. Ikiakpuk L1e$)0a21:ing River, 69°25' N, 1145030' W, Scholander and Fla acc. to S etzman) 139. Sadlerocgft(River, Igzek valley, 69°30' N, 195°00' W. Spetzman (ace. to Spetzman) 10h2. Lakes Schrader and Peters, 69°22' N, 1b5°00' w, Scholander and Flagg (acc. to Spetzman) 1145, Spetzman (acc. to Spetzman) 800. 12 miles N of Okpilak Lake, Okpilak River, 69°36‘ N, 1&3056' W, Cantlon-Malcolm 58-2514. Okpilak Lego, Okpilak River, 69°23' N, 1218008! w, Cantlon-Gillie 57-226 . , L - , , _ Jagu Lake, Jago River, 69°26‘ N, 114301;? W, Cantlon-Gillie 57—612b, 57-613. 57-981. 57-1195. 57-1403. 57-190“. 57-1‘451- Gare; gotmdata Wahl enb. Similar to W, but the luest page: reflggtgd, (and MW:- -. Eases mam Vahlenb. a habit (1/2) b pistillate scale (lo/l) c perigynium (lO/l) 9am rotygdata Wahlenb. ‘~\ Lake Noluk, upper Colville River, 68°97' N. 160°00' W. 5136152133“ (acc. to Spetzman) 112%. Peard 383'. 70 “8' N 158°30' W, Irving (acc. to Spetzman) 192. E of Nigu River, 686301 N, 1 6°27H w, Cantlon et a1. 53-8672. Headwaters of Fish Creek, 69 55' N, 152°50' W, Cantlon et al. 534716. Umiat, 69°22' N, 152°10' W, Cantlon et a1. 53-13b, Scholander (acc. to Spetzman) 181, 168, Spetzman (sec. to Spetzman) 1306, 2217, 2658. 10 miles ssw of Umiat, 69°18' N, 152027! N Cantlon et al. 5344565. Confluence of Kogosukruk and Colville River, 69°46' N. 151°50' W. Cantlon et al. 53-359, 53-887, 53-528. Confluence of Itkillik and Colville Rivers, 70°13' N, 150°55' W. Cantlon et al. 53-586, 53-628. 8 miles N of Itkillik River, 69° 0' N, 150°33' V. Cantlon 6* 81- 53-8748- Anaktuvuk Pass, Tuliguk Lake, 68 28' 1;. 151°25' W. Spetm (806- to Spetzman) M17. K111381111: River, forks, 69%3' N, 159°30' W, Cantlon et al. 534813. Shaviovik River. White Hills, 69°83‘ N, 197°10' 11. Spetzmn (506- to Spethan) 198. 12 miles N of Okpilak Lake. Okpilak River. 69°36' N. 1h3°55' W. Cantlon-Malcolm 584139. Okpizsk Laks, 01.101131. River, 69°23' N, lau°otu w, Cantlon-Malcolm 58-510, Malcolm 11. Jago Lake, Jago River, 69026! N, 11430117' W, Cantlon-Gillie 57-962s' 57‘1138s 57-1%. C_a_rex mpestris All . Stoleniferous, the Culms often curved and clothed basally with shiny tan or brown persisting leaves. Culm 8—15 cm long, 1.5 times the 1-2 m wide, gggrvgd leaves. Lowest bract scale-like, tipped by a scabrous aw]. (up to 10 mm long), not sheathing, much shorter than to about equal to.the inflorescence. Spike single, terminal, androgynous, oblanceolate, 12 x 3 mm. Pistillate scale obovate, longgr than the periminm, obtuse, broadly hyalin- margined, somewhat shiny brown, the midvein area lighter and the midvein usually distinct. Perigynium oblanceolate, slightly stipi- tate, 3 x 1.5 mm, faintly scabrous-marginedL mneweg, dull tan or brown, the beak short (0.3 m5 and tgmcate. Stigmas 3. Egg metrig 111. O p ‘x I j // NV .2 a habit (1/2) b pistillate scale (lo/l) c perignium (lO/l) Carex gipest ris All. Lake Noluk, upper Colville River, 68°h7' N, 160°00' W, Spetzman (acc. to Spetzman) 4325. Atkasuk Village, Meade River, 70°29' N, 157°25' w, Cantlon et a1 53-“815- Kurupa River, 68°h0' N, 155°10' W, Cantlon et al 5341617. 10 miles SSW of Umiat, 69°1h' N, 152°27' N, Cantlon et al 5344505. Ulniat, 69°22' N, 152°10' W, Spetzman (acc. to Spetzman) 1253, 2693. Anaktuvuk Pass, Tuliguk Lake, 68°29' N. 151°25' W. Spetzman (acc. to Spetzman) 1681, 1782. Kanayut Lake, Kanayut River, to Spetzman) 1975. Sunset Pass, 69°80' N, 1880851 w, Spetzman (acc. to Spetzman) 111m. 0 Sadlerochit River, Ignek Valley, 69°30' N. 1&5 00' W. Spetzman (ace. to Spetzman) 97a, 1085. o _ Lakes Schrader and Peters, 69°22' N. 1&5 00' W, Scholander and Flagg (acc. to S etzman) 153, Spetzman (acc. to Spetzman) 621, 735. 0k‘Pilak Lake, gkpilak River, 69°23' N, 1149001.“ W, Cantlon-Gillis 7-292 . JagOSI-ake,5Jago River, 69°26' N, 183°u7' w, Cantlon—Gillie 57-628,. 57-1270. ' 68°23' N, 1510001 N, Spetzman (acc. Carex scirnoidea Michx. Loosely tufted, the rootstock horizontal, stout, and pnrnlg- Igalgg, Culm 5-30 cm long, 1-3 times the 1-3 mm wide leaves. Lewes+ bract absent or scale-like, ti ped by a scabrous awl, not sheathing, much shorter than the inflorescence. Spike single, terminal, unisexual (plant dioecions), the staminate oblanceolate, 12 x h mm, the pistillate linear to cylindrical, 15-25 x 2-h mm. 9istillate scale lanceolate, shorter than the perigynium, acute, hairy, black or dark brown, the midvein indistinct and slightly lighter. Pbrigynium ovate, 2.5 x 1.5 mm, dgpselz cgzezgg with white hggzg, nerveless, dull brown, the beak long (0.7 mm), glabrous, and truncate. Stigmas 3. Gare; soiggo idea Michx. a habit (staminate) (1/2) b pistillate scale (10/1) 6 perigyninn (10/1) Care: gcigpoidea Hichx, /L ' f V\ Pitmegea Bi'ver, 68°5h' N, 164°35' V, Cantlon-Gillie 57—50h, 57-275. Lake Noluk, upper Colville River, 68°h7' N, 160°00' W, Spetzman (acc. to Spetzman) 3701, 3902, 3985, 14321. Nuke River, 68°h5' N, 159°50' W, Spetzman (acc. to Spetzman) 3627. Atkasuk villagje, Meade River, 70°29' N, 157025l w, Cantlon et a1 53-“759. Barrow 71°20' N, 1 6%0' w, Porsild (acc. to Porsild). E of Nigu River, 68 30' N, 156°27' W. Cantlon 8t 81 53-“590- Alaktak, Chipp River, 60%;“ N, 155°oo' w, Scholander (acc. to Spetzman) 155, Spetzman (acc. to Spetzman) 2H39. Headwaters of Fish Greek, 69°55' N, 152°50' W, Can‘lon et a1 53-h729. 10 miles SSW of Umiat, 69°1h' N, 152°27' W. Cantlon Pt 31 53-“513. 53-“553- A Umiat, 69°22' N, 152°10' W, Cantlon et a1 53-1f0, 53-118, 53-178. Scholander (acc. to Spetzman) 1&7, Spetzman (acc. to Spetzman 1255, 2328. o ' Confluence of Kagosukruk and Colville Rivers. 69°“6' N. 151 50 W. Cantlon et al 53-351, 53403. 53-539. 53-3g8. SB-WI-o , Confluence of Itkillik and Colville Rivers, 70 13' N. 150 55 W. Cantlon et a1 53.470, 53-630, 53-649. 53-670. 8 miles 1:! of Itkillilc River, 69°50' N. 150033 W. Cantlon 8'3 31 53’n7u'7e O O ' . (8,0,, to Anaktuvuk Pass, Tuliguk Lake, 68 24' N, 151 25 W, Spetzman e. Spetzman) 1602, 16147. Kanayut Lake, Kanayut River, 68°23' N, 151°00' W, Spetzman (acc. to Spetzman) 1966. Canning River, forks, 69 °13' N, 116051” N, McGregor (acc. to Spetzman) 1?, Spetzman (acc. to Spetzman) . Ikiakpuk valley, Canning River, 69°25' N, 1&5030' W, Scholander and Flagg (acc, to Spetzman) 1&9, Sunset Pass, 69°40' N, 1&4045' W, Spetnman (acc. to Spetzman) llSh. Sadlerochit River, Ignek Valley, 69°30 N, 145°OO' W, Spetzman (acc. to Spetzman) 828, 1009. Lake: Schrader and Peters, 69°22' N, 1u5°oo' w, Scholander and Flagg (acc. to Spetzman) 146, Spetzman (acc. to Spetzman) 529. 0kpilak Lake, Okpilak River, 69°23' N, 1M°ow w, Cantlon-Guns 57-2011, Cantlon-Malcolm 58-117, 58-120, 58-500, 58-501. 58-505. 58—506, 58-51u, 58-528b, 58—518, 58-519. Jago Lake, Jago River, 69°26' N, 1u3°u7' w, Cantlon-Gillie 57-802, 57-980. 57-10368. 57-1036b. 57-1295. 57-1402. 57-1u06. 57-1407. 57-1537, 57—1728, Cantlon-Malcolm 58-55“. Carex mbsggthacea Wo rmskJ . T tolonif o 8 char littor s ecies. Culm 7 cm long, 0.75 times the length of the spreading, reddish 0.7 mm wide leaves. Lowest bract foliaceous, not sheathing, slightly 'shorter than the inflorescence. Spikes 2 or 3, remote, the terminal staminate, oblanceolate, 10 x 3 mm. the lateral pistillate, cylindrical, ' 5 x 2 mm, W, erect on short (3 mm) peduncles. Pistillate scale obovate, longer than the periming, acute, lacking a hyalin mrgin, black or brown, the midvein area green, the midvein distinct. Perigynium oblanceolate, 2 x 0.8 mm, smnoth-margined, nerveless, dull brown or olive, the beak short (0.3 um) and distinctly bi- dentate. Stigmas 2. £812.03 Mileage Vomska. / ‘ ,1 I/ a habit (1/2) b pistillate scale (10/1) c perignium (lO/l) EC» \\\\“i;/ \i/ V Care: gbgpgthacea We mskj . "I / ? a Pitmegea River, 68°5u' N, 16u°35' w, Cantlon-Gillie 57-156. Barrow, 71°20' N, 156°40' W, Scholander (acc. to Spetzman) 598. Spetzman (acc. to Spetzman) Zhle. Barter Island, 70°10' N, 1u3°uo' w, Porsild (acc. to Porsild). Care: engine Nahlenb. esp. epggiocagpa (Steud.) Hult. Tufted, with slender, shigv brown stolgns. Culm 5-12 cm long, 1.5 times the filifgm, 0.5 mm wide leaves. Lowest bract scale-like, tipped by a scabrous awl, mt geammg, shorter than the inflorescence. Spikes 2 or 3, somewhat remote, the terminal staminate, lanceolate, 5 x 1.5 mm, the lateral pistillate, globose, 1+ x 14 mm, flew-flowered and the ngzimumm W112. Pistillate scale ovate, equal to the perigynium, acute, the margin broadly hyalin, chestnut brown, the midvein lighter and prominent. Perigynium lanceola‘e, 3 x 1 mm, smooth- margined, nerveless, shiny brm 9;: olive, the bait long (0.7 mm) and bidentate. Stigmas 3. Qarex EPA-£2 Vahlenb. esp. amniocam (Steud.) Hult. a habit (1/2) b pistillate scale (lO/l) c perigyniz-m (10/1) Carex smina Wahlenb. ssp. spaniocaga (Steud.) Hult. Umiat. 69°22' N, 152°1o' w, Spetzman (acc. to Spetzman) 23u5. Okzonak Lake, Okpilak River, 69°23' N, inflow w, Malcolm 3. Care: tenniflora Wahlenb. Similar to 0, amblzerhyncha, but the legggg narrow (0.5—1 mm), the We. the W. and the W. 9.9.25 ism Vahlonb. a habit (1/2) b pistillate scale (10/1) c perigynium (10/1) Care: tenpiflora wahlenb. / a Umiat, 69°22' N, 152°10' W, Spetzman (acc. to Spetzman), Gantlon et a1 53-53hh. o 12 miles N of Chile): Lake, Okpilak River, 69°36' N, 1&3 56' w, Cantlon-Malcolm 58-2h9. Okpilak Lake, Okpilak River, 6 58-““9, Malcolm 12. 0023' N, lthOh' W, Cantlon-Malcolm “I. 1.: {1| ‘l I Care: nrsina Dew . A dwarf, littgzfl species, ge use 11 gagsnitgge. Culm 3-6 cm long, gilggme 651, any: mna 1 to th e 1 mm wide leaveg. Lowest bract scale-like, not sheathing, much shorter than the inflorescence. Spike single, terminal, maecandrms, globosg, 6 x 1+ mm, P18- tillate scale obovate, shorter than the perigynium, obtuse, hyalin-margined, dark brown, the midvein area lighter. Perigynium ovate, 2 x 1 mm, smooth-margined, faintly many-nerved, dull tan, with a very short (0.2 mm) truncate beak. Stignas 2. ”.0”!!! amiss Davey a habit (1/2)‘ b pistillate scale (10/1) c perigyniumflO/l)"l fi.l6. ’ redrawn from Porsild, 1957. p. 51, fig. 180, and p. “8, g 7 Carer “yrsina Dewey R Barrow, 71°20' N, 156°b0' V, Porsild (acc. to Porsild), Scholander (acc. to Scholander) 599. Cgeg Eginata Tanisch Stoloni‘ferous, the brown, older leaves persisting. Culm 15-25 cm long, 2:1: times the 2-3 m fldg leaves. Lowest bract foliac- eous, on -sh thin . 8-12 mm), shorter than the inflorescence. Spikes 2 or 3, remote, the terminal staminate, lanceolate, 10 x h m, the lateral pistillate, ovate to cylindrical, 8 x ‘4 mm, s t e e . Pistillate scale ovate, equal to the perigynium, acute, the midvein area tan. Perigvnivm ovate, 2 x l m, smooth-margined, several-nerved, dull tan, the beak short (0.3 mm) and distinctly bidentate. Stigmas 3. h—Hu 4‘ 9222.1. v nata Tausch a habit (1/2) b pistillate scale (10/1) c perigynium (10/1) 9.92% _£1__V3 natg Tausch Lake Ncluk, upper Colville River, 68°h7' N, 160°OO' W, Spetzman (acc. to Spetzman) h029b, usuu. 10 miles ssw of Umiat, 6901M N, 152°27' w, Cantlon et al 534532. Umiat, 69°22' N, 152010' W, Cantlon et al 53-120, 53-236, 53-283, Scholander (acc. to Spetzman) 188, Spetzman (acc. to Spetzman) 2641 . Confluence of Kogosukruk and Volville Rivers, 69°b6' N, 151°50' w, Cantlon et al 53-5h0. Confluence of Itkillik and Colville Rivers, 70°13' N. 150°55' V. Cantlon et a1 53-67h. Anaktuvuk Pass, Tuliguk Lake, 68°2u' N, 151°25' w, Spetzman (acc. to Spetzman) ##18. Kanayut Lake, leanayut River, 6 to Spetzman) l97hb. o 12 miles N of Okpilak Lake, Okpilak River, 69°36' N. 1MB 56' V. Cantlon-Malcolm 58—250. Okpiiak Lake, Oknilak River, 69°23' N. Jago Lake,tJago River, 69°26' N, lb3°u7' w. Cantlon-Gillie 57-935. 57-1137. 57—11143. 57-1h01. 57-11405. 57-1’408. 57-1409. 57-1’439. 57-1521. 8°23' N, 151°oo' w, Spetzman (ace. inflow w, Cant ion-Maleoim Carex will iamsii Britt . Similar to C ca illaris, but the leaves filiform, and the my; incl. Carer williamsii Britt. a habit (1/2) b pistillate scale and perigynium (10/1) Carex williamsii Britt. “Mat. 69°22' N, 152°1o' w, Cantlon et al 5348», 53-2693, 53-5316, Szholander (acc. to Spetzman) 162, Spetzman (acc. to Spetzman 2 32. 15 miles S of the Colville River delta, 70°13' N, 150°55' W, Cantlon et al 53-579. 12 miles N of Okpiiak Lake, Oknilak River, 69°36' N, 1u3°56' w, Cantlon-Malcolm 58-2142, 58—252. 584439- Okpilak Lake, Okpilak River, 69°23' N, lhh°0h' W, Cantlon-Malcolm 58.156, 58.2050 Jago Lake, Jago River, 69°26‘ N, l 57-1u1o, 57-2mm. o . Dark Creek, Okpilak River, 5 miles s of Okpilak Lake. 69 18' N. lhh°00' w, Cantlon-Malcolm 58-13b. u3°u7' w, Cantlon-Gillie .57-1136. Am a .3 “LU are)»: 1... u. a... .e M, e, a \. \M «a