Hypnum.] BRYACE^. 355 



long-rostrate from a conical base, the subulate beak turned 

 upward ; j^eristome and annulus as in IT. prcdongum. — Muse. 

 Hib. 159, t. 15. H. prcBlongum, var. Stokesii^ Brid. 1. c. ii. 103. 

 Eurhynchium StoJcesii, Brucb & SchimiD. Bryol. Eur. t. 526. 

 Hab. Shady grassy slopes, Northwestern America; common. 



79. H. Oreganum, Sulliv. Closely allied to the last, dif- 

 fering in the plants being larger, more robust, very long and 

 creeping, once or twice branched, regularly and closely pinnately 

 ramulose, the leaves thinner and firmer, with longer and nar- 

 rower areolation, the basal angles not so much excavated, and 

 the perichfetial leaves reflexed (not simply spreading). — Mem. 

 Amer. Acad. iv. 172 (1849), and Bot. Wilkes Exped. Muse. 

 16, t. 13, B. 



Hab. Puget Sound {Pickering, Lrjall) ; California {Bigelow, etc.). 



Subgenus XII. RAPHIDOSTEGIUM. 



Generally small, drooping-cespitose, irregularly ramose and 

 ramulose. Leaves spreading, glossy, open all around or sub- 

 secund, those of the branches and stems similar, oblong-lanceo- 

 late, acuminate, ecostate or shortly bicostate at base ; borders 

 reflexed ; areolation minute, linear, flexuous, with 3 to 5 cells at 

 the basal angles oblong and inflated. Capsule cernuous, hori- 

 zontal or suberect, oval-oblong. Operculum long-subulate, ros- 

 trate. Pedicel generally smooth. 



80. H. demissum, Wils. Monoecious : tufts small, yellow- 

 ish or dirty green : leaves imbricate, compressed, or subsecund, 

 ovate or oblong-lanceolate, ecostate, marked at base by two 

 short strife, very entire ; basilar cells yellow ; perichsetium closely 

 imbricate : capsule inclined, small, horizontal, oval-oblong, yel- 

 low, exannulate, constricted under the orifice when empty; 

 operculum large, with a slender beak as long as the sporangium ; 

 pedicel very slender, curved above ; teeth orange. — Engl. Bot. 

 Suppl. t. 2740. Rhynchostegium demissum^ Bruch & Schimp. 

 Bryol. Eur. t. 507. 



Var. Oarolinianum. Branches longer, flaccid, dirty 

 green : leaves revolute on the borders all around. — H. demis- 

 sum, Sulliv. Muse. Allegh. n. 48. H. CaroUniamim, Muell. 

 Syn. ii. 327. IL demissum, var., Sulliv. & Lesq. Muse. Bor.- 

 Amer. Exsicc. n. 298''- 



