OF PACIFIC COAST MOSSKS. 5 



I'HASCUM, Schreb. 



10. P. cuspidatum, Schreb. 



Hab. with the former, JBol.; with var. pilifcruni, Fort Colville, Lyall. 



11. P. bryoides, Dicks. 



Yar. B. piUferum, Schp. Synop. 



Hab. south side of hills of Oakland, Bol. 



A few specimens only were sent, mixed with Anacalypta Starkeana and Weisia 

 riridula. 



PLEURIDIUM, Brid. 



12. P. subulatum, Brch. & Schp. 



Hab. ditches and dry hills, Sail Rafael, Bol. 



By the form of the capsule and of the leaves, the California moss is referable to 

 P. alter nifolhun, Brch. and Schp. Even the two years' old plants bear slender inno- 

 vating brandies with short distant leaves, similar to the flagelliform branches of P. 

 alternifolium. Yet. the inflorescence is that of P. subulatum, the anthers being free in 

 the axils of the upper leaves. 



BRUCHIA, Schwfcgr. 



13. B. Bolanderi, spec. nov. Monoica, dense gregaria, crespitulosa, pallide virescens. 



Caulis brevis, vix linearis, basi tantum radiculosus, simplex. Folia caulina 

 rcmota, minuta, lanceolata ; comantia erecto-aperta lanceolata, brevi subu- 

 lata, costa plana sub apice obscure et obtuse serrulate desinens, reti basilari 

 quadrato-elongato, apiciali angustiore distincto ; folia perichsetialia late ovata, 

 amplectentia tubulosa, externa breviter acuminata, interna lanceolato-subu- 

 lato erecta, caulinis duplo longiora, reti laxiore. Capsula in pedicello robusto. 

 semipollicari subflexuoso erecta vel subobliqua, e collo elongate pallide viridi 

 oblonga angusta, virescens, in rostrum rectum pallidumque producta ; calyp- 

 tra tertiam partem capsulse obtegens, basi laciniata. Inflorescentia vere 

 monoica sed primo intuitu dioica videtur, caule prirnario repente, radiculoso 

 masculas, femineasque gemmas radiculosas gestante. Flores masculi cras- 

 siores, foliis perigonialibus internis brunneis, ovato lanceolatis acutis, obsolete 

 nervosis. 



Hab. near Big Tree Grove, Mariposa ; Westfall's Meadow, 8,000 ft. Bol. 

 It is not easy to separate this species from Vogesiaca, Schw. The inflorescence 

 is the same ; at least, male and female buds bear in their position the same relation. 

 The long pedicel, the form and color of the capsule, are also similar. The difference 

 is essentially in the shorter stems, shorter leaves, the shorter beak, and especially .the 

 longer collum of the capsule. The pedicel is thicker than in the European species, 

 slightly flexuous when dry, straight when moistened. The color of the plants is of a 

 pleasant pale green. 



