284 BULLETIN OP THE UNIVERSITY OF WISCONSIN. 



165. Grimmia apocarpa alpicola H. & T. More densely cespitose, 

 lower, suberect: leaves shorter, broader, muticous; costa short: capsule 

 larger, emergent, operculum long rostrate. Schimp. Syn. Muse. Eur. 243. 

 1876. Greenland; Alaska. 



166. Grimmia conferta pruinosa Braith. More robust, in blackish 

 tufts: leaves broadsr, upper gradually ending in long smoothish hairs: 

 perichaetial bracts larger, distinctly papillose: teeth of peristome rufous- 

 orange, more lanceolate, often reflexed against capsule. Braithw. Brit. 

 Moss Flora 2: 7. Cape Horn Mountains, Idaho. 



167. Grimmia chloroblasta Kindb. Differs from G. conferta princi- 

 pally in long hair pointed leaves: perichsetial leaves larger and greener: lid 

 of capsule short, conic apiculate; teeth very cribrose, nearly as in Coscino- 

 don pulvinatus. Mac. Cat. 64. On dry rocks: Spence's Bridge, B. C. 



168. Grimmia heteropliylla Kindb. Differs from G. conferta in stem 

 nearly simple: leaves patent when dry, upper caniculate; margins involute 

 above: perichsetial leaves very much longer: the peristome reddish, not 

 papillose: tufts about 2 cm. high, when dry dark green above. Mac. Cat. 

 64. On rocks: Spence's Bridge, B. C. 



169. Grimmia atricha C. M. & Kindb. Differs considerably from G. 

 conferta in tufts densely cohering: leaves small and when dry appressed, 

 muticous, short, ordinarily ovate-oblong, not recurved at the margins; cells 

 not incrassate: perichsetial leaves very much larger and broader than the 

 others: capsule more wide-mouthed, teeth of peristome orange only below, 

 yellow or hyaline above, entire, not rimose nor papillose; lid longer ros- 

 trate. Mac. Cat. 65. On rocks: Sproat, B. C. 



170. Grimmia pachyneurula C. M. & Kindb. Tufts small, green: 

 leaves small, when dry appressed, not twisted, when moist spreading, short 

 ovate lanceolate, recurved on both sides, hairless and obtuse; cells uniform, 

 subquadrate, not erose, the alar scarcely distinct; costa percurrent, thick, 

 smooth at back: barren. Mac. Cat. 65. On rocks: Eevelstoke, B. C. 



171. Grimmia Philifoertiana Britt. Dioicous: plants pulvinate, in 

 small dark green cushions: stems naked and decumbent below, branching 

 and spreading above; leaves erect incumbent when dry, not secund, spread- 

 ing when moist, lanceolate, carinate, with recurved margins and toothed 

 hair points, generally deformed and bearing globose propagula, or retuse 

 and bifid along midvein; cells above rounded, hexagonal, faintly sinuous 

 and oblong at base, discolored, with slight enlargement at basal angles; 

 costa heavy, rounded at back, sulcate above: perichsetial leaves broader, 

 inner short, triangular and hyaline at base: pedicels one or two from same 

 perichaetium, twisted, variously bent; capsule broadest at mouth, smooth 

 when dry, pale with a red rim; teeth recurved, red, undivided, segments 

 broad below, slender and papillose above; lid straight or oblique; calyptra 

 mitrate; annulus delicate. Bull. Torr. Bot. Club 18: 51. 1891. 



