BARNES NOETH AMERICAN MOSSES. 281 



dry crispate,-when moist recurved from the erect base, carinate-concave, 

 comal longer, lanceolate subulate from lanceolate base, obtuse, minutely 

 papillose, margin entire, revolute, plane; costa reddish, apex terete, slightly 

 narrower, excurrent; lamina unistratose, cells round-quadrate and trans- 

 versely oval, basal quadrate and short rectangular: perichaetial leaves sim- 

 ilar, entire, base laxly areolate: fruiting specimens unknown. Bot. Cen- 

 tralbl. 44: 387. 1890. Washington. 



146. Barbula platyneura C. M. & Kindb. Dioicous: tufts compact, 

 semipulvinate, light brown: stems scarcely 1 cm. high: leaves suberect, 

 when dry imbricated and contorted, short, ovate or ovate-oblong, subacute, 

 papillose; margins strongly revolute; basal cells short rectangular, others 

 subquadrate; costa thick, short excurrent or percurrent: barren. Mac. 

 Cat. 52. On dry rocks: British Columbia. 



147. Barbnla convoluta obtnsata Kindb. Leaves broader, generally 

 obtuse, rarely subacute, not apiculate. Mac. Cat. 265. On limestone 

 rocks: Owen Sound, Ont. 



148. Barbula chrysopoda C. M. & Kindb. Differs from B. convoluta 

 in short nearly indistinct stem: leaves sublingulate, very obtuse: perich- 

 setial leaves rounded or truncate at the apex, long exserted: lid spirally 

 contorted. Mac. Cat. 57, On earth in burnt woods: Revelstoke, B. C. 



149. Barbula iiiclinatnla C. M. & Kindb. Dioicous: tufts laxly cohe- 

 rent, yellowish green: stem indistinct, not branching: leaves cirrhate- 

 crisped and rigid when dry, suberect and nearly straight when moist, not 

 undulate, from a thin ovate-oblong base attenuate, nearly sublinear, acute 

 or suddenly pointed, very papillose; margins involute, cucullate above; 

 costa yellow, pellucid, excurrent in an often denticulate point: perichaetial 

 leaves much broader and longer than others, whitish, subulate from a long 

 lanceolate base; cells narrow, linear above also: capsule narrow cylindric, 

 nearly straight, suberect; peristome long, several times convolute. Mac. 

 Cat. 50. On earth and gravel bars: Illicillewaet river, B. C. 



150. Barbula snbnlata longifolia Kindb. Intermediate between B. 

 subulata and B. angustata: leaves long and narrow, acuminate and 

 acute, distinctly denticulate above, papillose, yellow, bordered; costa long 

 excurrent but shorter in perichaetial leaves. Mac. Cat. 58. On earth: 

 British Columbia. 



151. Barbula alpina Bruch & Schimp. Closely related to B. Icevi- 

 pila: leaves not emarginate at summit, ending in a short point or simply 

 mucronate: monoicous: tube of peristome half as long, scarcely one-sixth 

 whole length; teeth once twisted. Husnot, Muse. Gall. 114. On rocks: 

 Quesnel, B. C. 



152. Barbula ruralis subintermedia Ren. & Card. Differing from 

 related B. intermedia in leaf margin revolute to apex and more dentate. 

 Ren. & Card. Revue Bryol. 19: 84. 1892. Arizona. 



