Coscinodon.] BRYACE^. 155 



long as the capsule ; teeth more or less cribrose, reflexed when 

 dry. — Eiiileit. Stud. Crypt. 281 ; Bryol. Eur. t. 230. Grimmia 

 cribrotyci, Hedw. Muse. Frond, iii. 73, t. 31. C. cribrosus, Spruce ; 

 Muell. Syn. i. 765. 

 Hab. Alaska {Harrington). 



2. 0. Wrightii, Sulliv. Very small, densely tufted, dirty 



or whitish green : leaves closely imbricate, broadly oval or 



obovate, concave, spoon-shaped, erose-denticulate from below 



the apex, rapidly narrowed to a serrate hair-point twice as long 



as the leaf and formed by the stout excurrent costa; basilar 



areolation loose, pellucid, oblong, that of the iipper part 



smaller and oblong-oval, chlorophyllose in the middle, pellucid 



toward the apex : flowers monoecious, the male on terminal 



branchlets: calyptra descending to below the middle of the 



capsule, pluriplicate : capsule immersed on a very short slightly 



curved pedicel, erect, oval-oblong, truncate at base, thin, smooth 



when dry ; lid conical, rostellate ; teeth purple, lanceolate, 



irregularly 2-3-cleft at the apex, cribrose at the base ; annulus 



large, falling off in fragments. — Mosses of U. States, 38, t. 4, 



and Icon. Muse. i. 71, t. 45; Sulliv. & Lesq. Muse. Bor.-Am. 



Exsicc. n. 132. Grimmia Wrightii, Austin, Bull. Torr. Club, 



vi. 46. 



Hab. On rocks; San Marcos, Texas [Wright) \ Sante Fe, New Mexico 

 (Fendler); Caiion City, Colorado (Brandegee). 



3. C Raui. Plants cespitose, dirty green : leaves obovate, 

 loosely imbricate or spatulate, rapidly acuminate into a some- 

 what long denticulate pellucid hair-point, plane and entire on 

 the borders ; costa stout, vanishing below the slightly erose- 

 dentate apex : flowers monoecious, the male in separate axillary 

 buds near the base of the perichaetial leaves : calyptra large, 

 plicate, covering the capsule to the middle : .capsule oblong- 

 oval, rounded or subtruncate at base, thin ; lid with a broad 

 conical beak ; teeth lanceolate, acuminate at the apex, entire, 

 split merely or perforated here and there on the line of divi- 

 sion, erect when moist, open when dry; annulus broad, per- 

 sistent. — Grimmia (Coscinodon) Jiaiiei, Austin, Bull. Torr. 

 Club, vi. 46. 



Hab. Colorado (Brandegee). 



A fine species, separated from the preceding by the leaves nearly entire 

 on the borders, the costa vanishing below the apex, the inflorescence, the 

 peristome, etc. 



