292 BULLETIN OP THE UNIVERSITY OE 'WISCONSIN. 



small hexagonal rotundate: capsule erect, oval-oblong, neck short, oliva- 

 ceous, when dry pyriform, obscurely 8-costate: lid obliquely rcstrate; 

 calyptra fugacious, rostrate; peristome none. Braithw. Brit. Moss Flora 

 2: 61. — On trees: White Falls, between Norway House and Hudson Bay 

 at York Factory. 



208. Zygodon conoidens H. & T. Dioicous; tufts lax, light yellow 

 green: stems nearly simple or sparingly branched, slender, beset with 

 ferruginous radicles at base: leaves less dense, patent, curving upward, 

 imbricated when dry, linear-lanceolate, acuminate, flat and slightly keeled, 

 more papillose, nerve narrow, vanishing below apex; cells larger and more 

 incrassate: capsule oval, tapering into a neck of equal length, narrower, 

 striate towards mouth when dry and empty, leptodermous, pale fuscous; 

 lid subulately beaked; peristome of 8 bigeminate pale yellowish teeth, 

 reflexed when dry, truncate at apex, fugacious, endostome of 8 yellowish 

 cilia, fugacious, often abortive. Braithw. Brit. Moss Flora 2: 62. — East- 

 ern States and Virginia. 



209. Drnmniondia clayellata Canadensis Kindb. — Leaves larger and 

 longer: inflorescence monoicous. Mac. Cat. 81. — On trees: Pelee Island, 

 Lake Erie. 



210. Ulota megralospora Vent. — Primary stems creeping, tomentose; 

 tufts dense, bright green: all leaves when dry cirrhate-crispate; those of 

 primary stem small (1 mm.), nEirrowly long subulate from" a broadly ovate 

 concave base; apex of one row of cells; base cochleariform, cells narrow, 

 thick-walled; upper cells roundish angular, 7-8/i broad, walls thickened, 

 each with a thick round papilla; margin irregularly crenulate by projecting 

 cell walls; upper leaves of branches broader with a shorter subula: peri- 

 chaetial leaves longer, from a longer base, short subulate: autoicous spor- 

 ophyte 5 mm. high: capsule small, ovate, when dry sulcata and urceolate, 

 constricted below mouth; striae 8, extending to middle or beyond, of 4 rows 

 of cells, neck long, defluent; stomata superficial; external teeth 8, pale, 

 bigeminate, minutely papillose, above almost smooth, lineolate, split along 

 divisural line i^, otherwise entire; cilia 8, subulate, smooth, below of 2 

 rows of cells; annulus double; operculum apiculate from a conic base; 

 calyptra sparsely hairy; spores very large, 55-61yU diam., green,' minutely 

 papillose, mixed with small spores scarcely 15/< diam. Bot. Centralb. 44: 

 389. 1890.— Cascade Mts., Wash. 



211. Ulota niarltima C. M. & Kindb. — DiEfers from Ulota phyllan- 

 tha in plants smaller, darker, green or black, not yellow: leaves shorter 

 and less circinate when dry, long attenuate to subulate apex, dis- 

 tinctly papillose, costa narrower, rough at back: capsule short oval with 

 short collum, pedicel shorter, thicker, curved when moist: peristome re- 

 flexed, teeth trabeculate, cilia long, carinate, of two rows of cells, finely 

 granulate and striolate in both. Mac. Cat. 84. Bull. Torr. Bot. Club 21: 



