REPORT OF THE CANADIAN ARCTIC EXPEDITION “+ 1913-18 VOLUME IV: BOTANY PART E: MOSSES By R. S. WILLIAMS OTTAWA THOMAS MULVEY PRINTER TO THE KING’S MOST EXCELLENT MAJESTY 1921 Issued February 8, 1921 1 ‘ 1 SO She ae ag ( ay bey om ah Report of the Canadian Arctic Expedition, 1913- 18. VOLUME I: GENERAL INTRODUCTION, NARRATIVE, ETC. Part A: NORTHERN PARTY, 1913-18. Part B: SOUTHERN PARTY, "1913-16. ‘By Rudolph Martin Anderson.. sence eeeee Un wiaiaenee ss VOLUME Il: MAMMALS AND BIRDS‘ ‘Part /A: MAMMALS. By ‘Rudolph Martin Anderson............++- sdisivea eslocw cate IN preptration). Patt. B: BIRDS. By R. M. Anderson and P. A. Taverner.......... pevveeser devsccsedln cw " 7 _/ VOLUME Ill: INSECTS ° pre / > INTRODUCTION. By C. Gordon Hewitt..... Ie oud datas eb eeaeESTS eae Unwed December 10, 1920). “Part A: COLLEMBOLA. By Justus W. Folsom,......... caisiine' rea sacaba CSG olaie Race ete (Issued July 10, 1919). , Part B: NEUROPTEROID INSECTS. By Nathan Banks.............020005 tania July 11, 1919). Part C: DET EES / _, , Crane-flies: By Charles P. slozandpe, sea \ ‘ Moen: By Harrison G. D Diptera (excluding Tipulide and Cilicia). By JR. Malloch. asin “ase July 14, Heres , Part D: MALLOPHAGA AND. ANOPLUR, es, ; ; “Mallophaga, -By A. W. Baker. : noplura..: ea GF. Ferrisand G. H.-F. Nuttall...... estes eae . Isaued September 12,1919). aE: E: COLROPTER ; \, Forest eer including Ipides, Cerambycida, aad Buprestide. By J. M. Swaine. > Carabide and. Silphide. By H.C. Fall. me Sues Elaterids, Chrysomelids and Rhychophora (excluding Tpias). y es ; “Dytiscide. By J. D. Sherman, Jr.. pout cteaaleisiarenrnules --. Issued Tecsnbee 12, 1919)., Part F: HEMIPTERA. By. ‘Edward P. VanDuzee ae eee Kinde ii Roo pe July 11, 1919). Part G: HYMENOPTERA AND PLANT GALLS. a Savwflies. (Tenthredinoidea). ‘By Alex. D. MacGillivray. ' Parasitic Hymenoptera. ’ /By Charles'T. Brues. ‘ Waste and ae By F. W. L. Sladen. Plant Galls. By E. Porter Felt.......... hacnneateae Seen veneitee .+ (Issued Ne pyenitee 8, 1919)... - Spiders. : ies J. H. Einerton; ” : a _.Mites. By Nathan Banks. BS : Myriapods. By Ralph V. Chamberlin seein (Issued July 14; 1919). 7 % ... (Issued January 10, 1920). | (Iesued September Z, 1920). TBE ARCTIC. Re Nenaard eae tulad jerome press). Part, EK: GENERAL O SERVATIONS ‘ON INSECT LIFE I By Frits Selaneen. . VOLUME IV: BOTANY SS Part A: FRESHWATER ALGAE AND FRESHWATER | DIATOMS. By Charles W. awe, sw sgt AetaCa era Searack aaegi acs Basvans ana se dpe rege apse ape epee Sew tans oraias LS DPEDOOOR Part Bi: MARINE ALGAR, By F. 8. Collins. as .-Part C: FUNGI. By John TICATIOHE pases a ésneeaenawd wernt ae (pee emcn oa Part D: LICHENS. By G. K. Merfill... Gani sinesabasvemeayen Didetapeenceieeedneee areca (In preparation). Part E: MOSaES. By R. S. Williams. 0000 acl Serie sede gccleidtstsrcasie cA siaiseasss (in sii ; Bi VOLUME V: BOTANY te Part A: yiowaRING PLANTS AND. FERNS. By James M. Macoun and Theo. Holm. .(In press). Part B: Soy La he TO MOR HOLOGY, SYNYONMY, AND GENERAL DISTRI- TION OF‘ ARCTIC PLANTS. By Th eo. Holm....:... z..(In press). Part C: GENERAL NOTES oN ARCTIC VEGETATION. By Brits Joheiigen, “Un preparation). VOLUME vi: SHES TUNICATES, ETC. Part B: SCHIZOP 4 (Ussued September 22" 191 Bart C: CUMACES Rp ithinthagonslinn A sh Eee te 1920). : In pa alae Part E: CLADOCERA. Mees / June 28, 1980). Part I: OSTRACODA. By to ORO, seniavonsroneneirinie, Ce a PH preparation). Part’ J: FRESHWATER COPEPODA. By Cc. Bit Marsh....... : eek ee aril 41, or, Part. K: MARINE COPEPODA., By A. W Willey en ore eda toate - (Issued June 26, 19: -- Ussued August/6, 1980 ) ‘ 7 ? a ee Part M: CIRRIPEDIA. Bu H. & Piisbry. Iya reine ange spanspechareminratae ++ Un preparation) ’ Part A: FISHES. By F. Johansen........00..c...06 fA Bditt ojo tieevdie mae uoaeule ave (In preparation), ‘ Part B: ASCIDIANS, ETC., By A. G. final 1 siecaniverictG sien eans estos woe Tevoraeper “Un Brepanion). : se ie i , \ » VOLUME VI: CRUSTACEA g Wes ‘ Part A: D ‘CAPOD. CRUSTACEANS. By Mary J. Rathbun... cehieanek “Uesued August 18, 1919 Scat ast hE peice sscuartuapieaennaecee ...(in preparation). °: n 7 REPORT OF THE CANADIAN ARCTIC EXPEDITION 1913-18 VOLUME IV: BOTANY PART E: MOSSES By R. S. WILLIAMS OTTAWA THOMAS MULVEY PRINTER TO THE KING’S MOST EXCELLENT MAJESTY 1921 4308 Issued February 8, 1921 Cornell University The original of this book is in the Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31924074095468 Mosses of the Canadian Arctic Expedition, 1913-1918. By R. 8. WILuraMs. New York Botanical Garden, Bronx Park, New York. The following list enumerates 68 species of the true mosses. The genus most largely represented is Drepanocladus with 11 species, all sterile; next comes Bryum with 9 species, 5 of which are fruiting; all the other genera, 33 in number, are represented by 1 or 2 species except Dicranwm of which there are 3, one of which C. elongatum is in fruit, and Stereodon which contains 4 species. The greatest number of species (7) separated out from one collection and growing more or less intimately associated, were obtained from a piece of sod, some 4 by 6 inches on the upper surface, cut out from the tundra on Barter island on the coast of arctic Alaska. These seven species, all sterile and men- tioned in the order of their abundance, the commonest first, are as follows:— Catoscopium nigritum, Swartzia montana, Drepanocladus brevifolius, Bryuwm neodamense, Chrysohypnum stellatum, Encalypta brevicolla and Drepanocladus scorpiotdes. From a small collection made on Sadlerochit river about twenty- five miles inland from Camden bay, Alaska, the following were separated out— Bryum pallescens, Leptobryum pyriforme, Mnium affine, Drepanocladus aduncus and Rhytidium rugosum; the Bryum and Leptobryum bearing fruit. The specimens are sterile unless otherwise stated. One species, Bryum neodamense, found in Europe, from the Pyrenees to the arctic coast, does not seem to have been credited before to America. Another, Drepanocladus brevi- foltus, has only been noted from Greenland, while two others are described as new. The region collected over extends from about latitude 65° to 70° 35’ N., and from the northern Alaska coast eastward to about longitude 110° W., and unless otherwise noted the specimens were collected by Mr. F. Johansen. Cuass Musci Subclass SPHAGNALES. Family SPHAGNACEAE. Genus Sphagnum (Dill.) Ehrh. Sphagnum subsecundum Nees. Tundra pond at Teller, Port Clarence, Alaska, Aug. 6, 1913. Sphagnum fuscum, (Sch.) H. Klinger. High tundra swamp on Herschel island, Yukon Territory, July 31, 1916. Subclass BRYALES. Tribe ACROCARPI. Family DITRICHACEAE. Genus Swartzia Ehrh.; Hedw. Swartzia montana (Lam.) Lindb. On cliffs on “Ptarmigan creek,” Sadlerochit river, Alaska, Nov. 13, 1913. Tundra on Barter island, Alaska, summer 1918, J. Hadley; fruiting. Tundra at Bernard harbour, Northwest Territories, June, 1916. On dolomite cliffs at Murray point, Victoria island, Northwest Territories, March 25, 1916. 4308—14 45 Canadian Arctic Expedition, 1913-18 Genus Ditrichum Timm. Ditrichum flexicaule var. densum Braithw. Near Colville hills, Victoria island, Northwest Territories, July, 1915, D. Jenness. Tundra at Bernard harbour, Northwest Territories, June, 1916. Ditrichum giganteum R. 8. Will. Port Epworth, Coronation gulf, Northwest Territories, June, 1915, J. R. Cox and J. J. O'Neill. Family DIGRANACEAE. Genus Dicranum Hedw. Dicranum Bergeri Blandow. On lower hills of Sadlerochit river, 25 miles inland from Camden bay, Alaska, Nov. 13, 1913. Dicranum elongatum Schleich. Tundra hummock at Collinson point, Alaska, June 7, 1914. Dicranum neglectum Juratzka. Tundra at Collinson point, Alaska, June 7, 1914. Tundra at Collinson point, Alaska, Oct. 9, 1913. Basalt island southeast of Lady Franklin point, Coronation gulf, Northwest Territories, March 12, 1916. Family POTTIACEAE. Genus Tortella (C.M.) Limpr. Tortella tortuosa (L.) Limpr. Moist places on basalt island southeast of Lady Franklin point, Coronation gulf, Northwest Territories, March 12, 1916. Tortella fragilis (Drumm.) Limpr. Port Epworth, Coronation gulf, Northwest Territories, June, 1915, J. R. Cox and J. J. O’Neill. Genus Didymodon Hedw. Didymodon rubellus (Hoffm.) Br. & Sch. Young point, Northwest Territories July 21st, 1916. On dolomite rocks on Sutton island, Dolphin and Union strait, Northwest Territories, April 10, 1916. Genus Barbula Hedw. Barbula Johansenii, n.sp. Dioica; humillima (3-4 mm.) ; caules simplices, cespitosi, virides; folia siccata erecto-appressa, imbricata, ovato-lanceolata, non papillosa, 1-5 mm. longa, margine integro, plus minus revoluto; ¢ellulis inferioribus oblongis vel Mosses 5 E rectangularibus, pellucidis, superioribus subincrassatis, depresso-rotundatis; nervo excurrente (0-4—0-5 mm.), crasso, viridi, fragilissimo, superne saepe latiore. Barbulae acutae (Brid.) Brid. proxima. Pl. 1, fig. 1-XII. Sterile, only flowers containing 3-5 archegonia with few or no paraphyses found; the archegonial leaves lanceolate with mostly a long- excurrent costa enlarging toward the apex, the inner leat often very small and consisting largely of the costa; stems 3-4 mm. high, with rhizoids at the base, about 125 mm. in diameter, with rather indistinct central strand and walls of 1 or 2 layers of cells with but slightly thickened cell-walls; stem-leaves erect, rather closely appressed-imbricate when dry, ovate-lanceolate, the blade up to 1-5 mom. long and -40 mm. wide, with an excurrent costa up to 130 » long above the blade, often enlarging and somewhat flattened toward the apex and mostly broken off in the older leaves, in cross-section showing 2-4 guide cells without stereid cells in the upper part but in lower costa with rather small, thick-walled cells above and below the guide-cells, extending to the surface; leaf-margin entire, more or less recurved along the middle; cells of leaf smooth, in the upper half of blade mostly transversely oval with thickened walls, the median cells 8-10 uw by 5-8 » gradually changing below the middle of leaf to the more-or less oblong or rectangular and paler cells of the basal part. Type locality, Murray point, Victoria island, latitude 68°40’N., on dolomite cliffs, March 25, 1916, Frits Johansen. This species comes nearest to F. acuta (Brid.) Brid., but the elongate basal: cells extend farther up the leaf and the stereids of the lower part of the costa are not so well defined. Barbula vinealis Brid. Atkoon creek, Clifton point, Northwest Territories, May 6, 1916, D. Jen- ness. Valley back of Bernard harbour, Northwest Territories, May 9, 1916, F. Johansen. Genus Pottia Ehrh. Pottia Heimii var. obtusifolia Hagen Tundra at Cape Bathurst, Northwest Territories, latitude 70° 35 N., July 26, 1916, fruiting. Genus Tortula Hedw. Tortula ruralis (L.) Ebrh. On boulder at Konganevik, Camden bay, Alaska, June 29, 1914. Valley back of Bernard harbour, Northwest Territories, May 9th, 1916. Island near Cock- burn point, Dolphin and Union strait, Northwest Territories, July 15, 1916. Family ENCALYPTACEAE. Genus Encalypta Schreb. Encalypta procera Bruch. On cliffs on ‘‘Ptarmigan creek,” Sadlerochit river, Alaska, Nov. 13, 1918. Encalypta brevicolla, Bruch. Tundra on Barter island, arctic coast of Alaska, summer 1918, J. Hadley. 6 E Canadian Arctic Expedition, 1913-18 Family GRIMMIACEAE. Genus Rhacomitrium Brid. Racomitrium hypnoides (L.) Lindb. Tundra at cape Barrow, Coronation gult, Northwest Territories, Aug. 6, 1915, J. J. O'Neill. On basalt outcrop at mouth of “Mackenzie river’ (of Dr. Rae), Victoria island, Northwest Territories, Canada, March 29, 1916. Family ORTHOTRICHACEAE. Genus Orthotrichum Hedw. Orthotrichum Killiasii C.M. Harbour island, Bernard harbour, Northwest Territories, June 10, 1916 and tundra at Bernard harbour, Northwest Territories, June, 1916; fruiting. From dolomite rock cliff, at mouth of ‘“Mackenzie river,” (of Dr. Rae) south shore of Victoria island, Northwest Territories, March 29, 1916. On boulders at Bernard harbour, Northwest Territories, June, 1916. ‘‘Uluksoq’s island,” Bernard harbour, Northwest Territories, June 12, 1916. Bernard harbour, Northwest Territories, June ii, 1915; fruiting. Cape Barrow, Coronation gulf, Northwest Territories, Aug. 1915, R. M. Anderson. Family SPLACHNACEAE. Genus Tetraplodon B.S. & G. Tetraplodon bryoides (Zoeg.) Lindb. Bernard harbour, Norhwest Territories, July 3, 1916. Tundra at Collinson point, Alaska, June 3, 1914. Tundra at Young point, Northwest Territories, July 21, 1916. The specimens all fruiting. Genus Haplodon R. Br. Haplodon Wormskjoldii (Hornem.) R. Br. Creek bed at Bernard harbour, Northwest Territories, July 9, 1915. Bernard harbour, Northwest Territories, July 3, 1916. All in fruit. Family BRYACEAE. Genus Leptobryum (B.S. & G.) Wils. Leptobryum pyriforme (L.) Wils. On boulders, Sadlerochit river, about 30 miles inland from Camden bay, Alaska, Nov. 18, 1918; fruiting. Genus Bryum Dill. Bryum pendulum (Hornsch.) Sch. Creek bed at Bernard harbour, Northwest Territories, July 9, 1915; fruiting. Bryum arcticum (R.Br.) B.S. & G. Bry. Eur. Island near Cockburn point, Dolphin and Union strait, Northwest Terri- tories, July 15, 1916. Probably the same; tundra at Young point, Northwest Territories, July 21,1916. Both in fruit, but the latter with capsules infected by a fungus. Mosses i Be Bryum Agattuense Philib. Small island at Bernard harbour, Northwest Territories, June 17, 1916. Having seen no authentic specimens of this species, these sterile, flagelliferous specimens are somewhat doubtfully referred here. Bryum mucronigerum Philib. Bernard harbour, Northwest Territories, July 3, 1916. From same locality, creek-bed, July 9, 1916. Both in fruit. Bryum calophyllum R. Br. Port Epworth harbour, Coronation gulf, Northwest Territories, June 27, 1915, J. J. O'Neill. Bryum neodamense Itzig. Tundra on Barter island, arctic coast of Alaska, J. Hadley, summer, 1918. No previous record found for North America. Bryum suborbiculare Philib. On rocks on Sutton island, Dolphin and Union strait, Northwest Territories, April 10, 1916. The specimens are sterile and in rather poor condition, but apparently belong here. Bryum Wri¢ghtii Sulliv. Tundra at Bernard harbour, Northwest ‘Territories, June 16, 1915; fruiting. Bryum pallescens Schleich. Tundra swamp at Konganevik, Camden bay, Alaska, June 30, 1914. Mountain slopes Sadlerochit river about 30 miles inland from Camden bay, Alaska, Nov. 10 and 18, 1918. Atkoon creek, Clifton point, Northwest Terri- tories, May 6, 1916, D. Jenness. Creek-bed at Bernard harbour, Northwest Territories, July 9, 1915. All fruiting except the ones from Atkoon creek. Family MNIACEAE. Genus Mnium (Dill.) L. Mnium affine, Bland. From boulder, Sadlerochit river, 30 miles inland from Camden bay, Alaska, Nov. 13, 1918. Shingle point, western edge of Mackenzie river delta, Yukon Territory, Aug. 4, 1914, J. R. Cox and J. J. O'Neill. Genus Cinclidium Sw.; Schrad. Cinclidium subrotundum Lindb. Shore of big lake at Konganevik, Camden bay, Alaska, June 26, 1914. Family AULACOMNIACEAE. Genus Aulacomnium Schwaegr. Aulacomnium palustre var. imbricatum B.S. & G. Bry. Hur. In swamp on Herschel island, Yukon Territory, July 31, 1916; Diabase island in Coronation gulf, Northwest Tertitories, March 12, 1916. 8E Canadian Arctic Expedition, 1913-18 Aulacomnium turgidum (Wahl.) Schwaeger. From lower hill-tops ot Sadlerochit river about 25 miles inland from Camden bay, Alaska, Nov. 18, 1913. Family CATOSCOPIACEAE. Genus Catoscopium Brid. Catoscopium nigritum (Hedw.) Brid. Barter island, arctic coast of Alaska, summer, 1918, J. Hadley. Family BARTRAMIACEAE. Genus Philonotis Brid. Philonotis fontana (L.) Brid. From warm creek tributary to Sadlerochit river, Camden bay, Alaska, Novy. 6, 1913. Family TIMMIACEAE. Genus Timmia Hedw. Timmia bavarica Hessl. Tundra at Bernard harbour, Northwest Territories, June, 1916. Tribe PLEUROCARPI. Family ENTODONTACEAE. Genus Holmg¢grenia Lindb. Holmégrenia chrysea (Schwaegr.) Lindb. Diabase island in Coronation gulf, Northwest Territories, March 12, 1916. Family LESKEACEAE. Genus Thuidium B.S. & G. Thuidium abietinum (L.) B.S. & G. Bry. Eur. Port Epworth, Coronation gulf, Northwest Territories, June, 1915, J. R. Cox and J. J. O'Neill. With Cassiope tetragona in creek below Sandstone rapids, Coppermine river, Northwest Territories, Feb. 15, 1915. Family HYPNACEAE. Genus Amblystegium B.S. & G. Amblystegium compactum (C.M.) Aust. On dolomite rock, Sutton island, Dolphin and Union strait, April 10, 1916. Amblystegium serpens (L.) B.S. & G. Bry. Eur. Small island between Chantry island and mainland, near Bernard harbour, Northwest Territories, June 17,1916. Harbour island at Bernard harbour, June 10, 1916, F. Johansen. Mosses 9B Genus Hygroamblystegium Loeske. Hygroamblystegium filicinum (L.) Loeske. From warm creek tributary to Sadlerochit river, about 25 miles inland from Camden bay, Alaska, Nov. 6, 1913. Hygroamblystegium noterophilum (Sull.) Warnst. Locality, etc., of preceding. Genus Drepanocladus (C.M.) Roth. Drepanocladus aduncus (L.) Warnst. On boulder at Konganevik, Camden bay, Alaska, June 29, 1914. Tundra hummock, Collinson point, Alaska, June 3, 1914. On boulder, Sadlerochit river about 30 miles inland from Camden bay, Alaska, Nov. 13, 1913. Shingle point, western edge of Mackenzie river delta, August, 1914, J. R. Cox and J. J. O’Neill. Tundra at Young point, Northwest Territories, July 21, 1916. Drepanocladus revolvens (Sw.) Warnst. Pond in swamp at Bernard harbour, Northwest Territories, June 1€, 1915. Drepanocladus Cossoni (Sch.) Roth. Mountain slopes, Sadlerochit river, about 30 miles inland from Camden bay, Alaska, Nov. 10, 1913. Drepanocladus fluitans (Dill.) Warnst. Attached to stones in creek-bed at Bernard harbour, Northwest Territories, Aug. 16, 1915. Drepanocladus Kneiffii (Sch.) Warnst. Shore of big lake at Konganevik, Camden bay, Alaska, June 26, 1914. Drepanocladus Kneiffii var. laxum Sch. Pond on Pihumalerksiak island, Cockburn point, Northwest Territories, July 15, 1916. Drepanocladus Sentneri (Sch.) Warnst. Pond on Chantry island, Dolphin and Union strait, Northwest Territories, June 17, 1916. j Drepanocladus Wilsoni (Sch.) Roth. Brook swamp on tundra at cape Bathurst, Northwest Territories, July 26, 1916. A lax form; locality of preceding (tundra), July 26, 1916. Drepanocladus brevifolius (Lindb.) Warnst. Barter island, arctic coast ot Alaska, summer, 1918, J. Hadley. Previously reported for North America only from Greenland. 10 5 Canadian Arctic Expedition, 1913-18 Drepanocladus trifarius (Web. & Mohr.) Broth, From pond on Chantry island, Dolphin and Union strait, Northwest Terri- tories, June 17, 1916. Pond in swamp at Bernard harbour, Northwest Territories, June 16, 1915. Drepanocladus scorpioides (L.) Warnst. Barter island, arctic coast of Alaska, summer, 1918, J. Hadley. Pond at Bernard harbour, Northwest Territories, July 3, 1916. Shore of big lake at Bernard harbour, July 19, 1915. Pond at Bernard harbour, Aug. 16, 1915. Attached to stones in creek-bed, Bernard harbour, Aug. 16, 1915. Genus Calliergon (Sull.) Kindb. Calliergon giganteum (Sch.) Kindb. Tundra at cape Bathurst, Northwest Territories, July 26, 1916. Attached to stones in creek at Bernard harbour, Northwest Territories, Aug. 16, 1915. Calliergon sarmentosum (Wahlenb.) Kindb. Probably this but with more distant leaves and the leaf-cells with walls thinner and less pitted than is usual. Shore of big lake at Konganevik, Camden bay, Alaska, June 26, 1914. Genus Chrysohypnum Hampe. Chrysohypnum stellatum (Schreb.) Loeske. From bottom of ice covered pond on tundra at Collinson point, Alaska, October 9, 1913. Cliffs on ‘Ptarmigan creek,’ Sadlerochit river, Camden bay, Alaska, Nov. 13, 1913. Barter island, arctic coast of Alaska, summer, 1918, J. Hadley. Pond on Chantry island, Northwest Territories, June 17, 1916. From shore of big lake at Bernard harbour, Northwest Territories, July 19, 1915. Chrysohypnum arcticum, n.sp. Flores et fructus ignoti; caulis brevis (1-2 cm.), pallide lutescens, ramis paucis; folia caulina e basi appressa, concava, late ovata vel suborbicularia subito in acumen reflexum producta, margine erecto vel involuto, integerrimo; cellulis elongatis, pellucidis non incrassatis, latis 7-8 y, basi majusculis, laxis plus minus lutescentibus subincrassatis, alaribus varius ventricose fasciculatis. Chrysohypno stellato (Schreb.) Loeske proximum sed folia et cellulae latiorae. Sterile, no flowers found; the pale, yellowish stems without radicles and with few, irregular branches, in cross-section roundish, about 175 win diameter, with small central stand and mostly two outer layers of cells with thickened walls; stem-leaves very concave, not decurrent, up to 1-4mm. wide and 1-7-2 mm. long, the more or less rotund lower part appressed imbricate, with an acute, widely spreading point, the margins entire all round and flat or incurved; costa mostly short and double or rarely single and usually slightly forking above, Mosses 115 rarely extending 1-3 up the leaf; branch leaves narrower than those of the stem, very concave, entire, mostly ecostate or with very short costa; cells of stem leaves pale, quite uniform to near the base, with thin walls, the median 25-40 yu long and 7-8» wide, the basal cells with often somewhat thickened and golden. brown walls, broader and shorter than above and extending to the costa, the alar rarely forming a rather distinct, somewhat inflated cluster. Type locality, swamp on Pihumalerksiak island, a little stony island off Cockburn point, Dolphin and Union strait, Northwest Territories, July 15, 1916, F. Johansen. This species seems to come nearest C. stellatum but the leaves are relatively much broader below, the cells about twice as broad in proportion to their length, with the cell-walls thinner throughout and not pitted. Genus Rhytidium (Sull.) Kindb. Rhytidium rugosum (Ehrh.) Kindb. On boulder, Sadlerochit river about 25 miles inland from Camden bay, Alaska, Nov. 18, 1913. Cape Barrow, Coronation gulf, Northwest Territories, middle of August, 1915, R. M. Anderson. Genus Hylocomium B.S. & G. Hylocomium alaskanum (L. & J.) Kindb. On boulder at Konganevik, Camden bay, Alaska, June 29, 1914, and on tundra at Collinson point, Alaska, October 9, 1913. Genus Stereodon (Brid.) Mitt. Stereodon Bambergeri (Sch.) Lindb. Tundra at Bernard harbour, Northwest Territories, June, 1916. Stereodon cupressiformis (L.) Brid. On boulder at Konganevik, Camden bay, Alaska, June 29, 1914. Tundra hummock, Collinson point, Alaska, June 3, 1914. Stereodon revolutus Mitt. “Uluksok’s island,’ Bernard harbour, Northwest Territories, June, 1916. Valley back of Bernard harbour, May 9, 1916. Stereodon Vaucheri (Lesq.) Lindb. Chantry island, Dolphin and Union strait, Northwest Territories, June 17, 1916. Family BRACHYTHECIACEAE. Genus Camptothecium B58. & G. Camptothecium lutescens (Huds.), B.S. & G. Bry. Eur. Boulder at Konganevik, Camden bay, Alaska, June 29, 1914. Island south- east of Lady Franklin point, Coronation gulf, Northwest Territories, March 12, 191€. 125 The Canadian Arctic Expedition, 1918-18 Camptothecium nitens (Schreb.) Sch. With Cassiope tetragona in creek below Sandstone rapids, Coppermine river, Northwest Territories, February 15, 1915. Genus Brachythecium B.S. & G. Brachythecium albicans (Neck.) B.S. & G. Bry. Eur. Creek below Sandstone rapids, Coppermine river, Northwest Territories, February, 15, 1915. Cape Barrow, Coronation gulf, Northwest Territories, middle of August, 1915. R.M. Anderson. Brachythecium sp. Swamp on Pihumalerksiak island, Cockburn point, Northwest Territories, July 15, 1916. Some fragmentary sterile specimens that seem to belong to a Brachythecium and near some of the entire-leaved forms of B. plumosum. Genus Eurhynchium B.S. & G. Eurhynchium strigosum (Hoff.) Br. & Sch. Tundra at Collinson point, Alaska, Oct. 9. 1913. Cape Barrow, Coro- nation gulf, Northwest Territories, August, 1915. R.M. Anderson. 14 The Canadian Arctic Expedition, 1913-18 i DESCRIPTION OF PLATE. Barbula Johansenti, n. sp. Fig. 1. Plant X 19. 2. Outer perichaetial leaf X 32. 3. Stem-leaf X 32. 4&5. Cross sections of lower and middle parts of stem-leaf X 210. 6&7. Cross sections of upper part of leaf and excurrent costa X 210. 8&9. Inner perichaetial leaves X 32. 10. Apex of costa broken off and starting new growth X 50. 11. Basal cells of stem-leaf X 210. 12. Median cells X 245. Chrysohypnum arclicum, .sp. Fig. 13. Plant X 6. 14.&15. Stem leaves X 19. 16. Branch leaf X 19. 17. Basal cells of leaf X 210. i8. Median cells X 245. Mosses Report. of the Canadian Arctic Expedition, 1913-18. VOLUME. VO: MOLLUSKS, ECHINODERMS, COELENTERATES, RIG jt Part As MOLLUSKS, RECENT AND PLEISTOCENE. By William H. Dall. i : (Issued September as, 1019). Part B: EPHALOPODA’ AND PTEROPODA: By S. 8S. Berry and W. F. Clapp. (In prepares, Part C;° Co OUT EMS. By Austin H. Clark a6 calneial ‘April 6, 1920 ‘Part D: BRYOZOA.' ‘By R. C, Osburh.... ....... ..(n preparation). ~ Part. E: BOLATORIAS By, Aas a Harring. ree I ave, : dn preparation Part F: CHAETOGN A, G. Huntsmian......5..).eecedeee Peers a Sopaee vais (In r Preparation). Part G: ACTINOZOA AND. ALCYONARIA. By A: E Versi. ava ‘th Press nasa = “Cseued’ ‘June 80, etd . Part 1: -HYDROIDS. i McLean Baler siod yi ctdc cranial send a edlaes a ie Re (In preparation Part J: PORIFERA. Pert aed : re yg VOLUME 1 ANNELIDS, PARASITIC WORMS, PROTOZOANS, ETC. “Part A: OLIGOCHAETA. Beg ' i bP of . 7 Larabee culide. By Frank ‘Smith. — | = : -.. Enchytralide. By Paul S. Welch..... peut ost. 34 sod September 29, 1919). {Part B: POLYCHABTA, » By Ralph: “V.. Chamberlin... : : ( Issued November 16, 1920 : Part C: HIRUDINEA. By J.P. Moore............... saieke te rand ous teicioiay on ee nm press). "Part D: GEPHYREA. By Ralph V. Chamberlin. 020000000 (Issued Jéine 10, 192 A ‘ & ‘ (Issued, April?, 1920). i Dare F: NEMATODA. yN. A. ‘oa alla preparation). ‘Part G-H: TTREMATODA’ AND CESTODA. By A. R. Cooper Bie Secces 1 press - Part I: TURBELLARIA.' By cs Hassell ‘ . . In preparation). --PartoJ: ‘GORDIACEA. : : . ' Part K: SPOROZOA. By J. V. Mavor.......... cece cece en eeeee Divcse aed racing 8h te ves ».(In preparation). ’ Part.M: FORAMINIFERA. By J. A. Cushman. , race ee bis ve phages 8 fied “ Gesued ‘February 65 HaeO VOLUME xX: ‘PLANKTON, HYDROGRAPHY, TIDES, ETC. Part A: PLANKTON. , By Albert Mann..:...... ee Bes Un preparation). “Part B: MARINE DIATOMS. ‘By L. W. Bailey, :.....+++ stneegaces ‘ ios : (In preparation). ‘Part C: TIDAL PERE AHONE AND RESULTS. By W. Bell Issued October 1, 1920) Dawson. Part D: “HYDROGRAPHY: de weenie saree pep beeedentdeceaereeteaeedss «4 (In preparation). . iy * aa ; . the oe, : 2 : VOLUME XI: GEOLOGY AND GEOGRAPHY ; _ Part A: THE GEOLOGY OF TH AROTIC COAST OF (CANADA, WEST OF THE KENT. : . PENINSULA.’ By J. JSO' Neill... 0. ciel bovees+t..(In preparation). | Part B: MAPS, a GEOGRAPHICAL NOTES. By en G, Chipman and John R. Cox. - ry eee eee eee eee eee eS CeCe et eee Otte See ree eee reece ee ~ Un preparation) 5 if ; : VOLUME XUL: THE COPPER ESKIMOS (One part, complete) . 14 fe , ‘THE LIFE OF THE COPPER ESKIMOS. By Jenness..+4 lane Fe lerardteteiece “el In press). ) iy "VOLUME XI: EN YsSi¢al ‘CHARACTERISTICS AND TECHNOLOGY OF THE » COPPER ESKIMOS "Part A THE | PHYSICAL CHARACTERISTICS OF THE © -COPPER ESKIMOS. By D. » Werness (En part) sah sve ves «eons ¢ cess 2 cess emes diaa’s oe ae aesina.t Warts < Romy seas (In preparation). Part B: ‘TECHNOLOGY, OF i COPPER ESKIMOS.......... eseeteees Sie oe 4 be prepared), ae J ‘ r a VOLUME XIV: ESKIMO FOLK-LORE AND LANGUAGE we set bp "Part A: ‘FOLE-LORE, WITH TEXTS,» FROM ALASKA, THE MACKENZIE DELTA, AND CORONATION GULF. By Ds Jenness ee Ce ee Cees YEE eee .. (In preparation). - Part B: COMPARATIVE GRAMMAR AND: VOCABULARY ‘OF THE ESKIMO. piers OF POINT BARROW, THE ee TE DELTA, AND CORONATION GULF. > By D. aennee, a diotnisd « Hlesins daisies $68 oR sae ae bat tacts kes 238 avs couetys 28 In preparation) VOLUME XV: ESKIMO ‘STRING FIGURES AND SONGS Patt! A: a an FIGURES OF THE: ESKIMOS. By D. Sentestte teageeees = Steady for press). Rs Bs: as cd seaheasimn COEES BEEING: * By D. Jenness (in part)... atared aibtinaie (In preparation). ps p% § ' VOLUME XVI:. ARCHAEOLOGY " CONTRIBUTIONS TO THE. ARCHAEOLOGY OF WESTERN ARCTIC. AMERICA. eS , Sessa si eratornaveracerie tstieas tastes 1S eee t eee nes hte tade Penns pee nse eeamredy