musci boreali-americani. 85 



511. Hypnum Californicum. 



Lesqx. in Trans. Amer. Phil. Soc. 13, p. 13. 



Hab. in solo arido et arenis umbrosis Californiae QBo- 

 lander legit). 



512. Hypnum arenarium. 



Lesqx. in Trans. Amer. Phil. Soc. 13, p. 13. 



Hab. in arenisumbrosisjuxta San Francisco, Californiae 

 (JBoUmdef). 



513. Hypnum pinnatifidum (n. sp.) 



Ab Hypno aureo affinissimo distinguitur capsula cernua, 

 annulo majore, foliis brevius filiformi-acuminatis, reti 

 multo laxiore, denique inflorescentia revera dioica. 



Hab. in umbrosis vallibus Californias (Bolandef). 



514. Hypnum Nuttallii. 

 Wils. — Sulliv. Icon. 3Iusc. p. 211, t. 128. 

 Leskea Californica, Hampe in Linncea (1859), p. 460. 

 Hab. in California (Bigelow, Bolandef). 



515. Hypnum stellatum. 

 Schreb. — Bryol. Europ. Hyp. Monogr. p. 14, t. 4. 

 Hab. in pratis humidis Ohionis. 



516. Hypnum polymorphum. 



Hook. 8f Tayl. — Bryol. Europ. Hyp. Monogr. p. 13, 

 t. 3. 



Hab. in sabulosis ad radices arborum. 



