394 BRYACE^, [Hypnum. 



angles very few and small or none, the angles not excavate nor 

 auriculate, the perichaetial leaves larger, oblong, abruptly nar- 

 rowed into a shorter filiform flexuous slightly serrulate point, 

 neither costate nor sulcate, the operculum obtuse at the highly 

 conical apex, the cilia two, not appendiculate, and the annulus 

 large, simple, revoluble. — Trans. Amer. Phil. Soc. xiii. 14; 

 Sulliv. & Lesq. Muse. Bor.-Amer. Exsicc. (ed. 2), n. 475 ; Sulliv. 

 Icon. Muse. Suppl. 103, t. 79. Stereodon plumifei\ Mitten, 

 Journ. Linn. Soc. viii. 41, t. 7. 



Hab. Shaded rocks in woods; Northwest coast [Menzlcs, Douglas); 

 Vancouver Island and British Cohnnbia (LyaiO; Bitterroot Mountains, 

 ■ Northern Idalio ( [Vatson] ; California, at Oaliland, the Big Tree Grove, etc. 

 {Bolandcr). 



The only difference mentioned by Mitten between H. plumifer and this 

 species is in the lid, wliicli lie describes as short and subulate-rostrate. 

 Comparison of authentic specimens shows it to be of tlie same form in 

 both, more or less obtusely pointed. 



157. H. plicatile. P'astigiately branching: leaves falcate- 

 secund, broadly ovate-acuminate, hooked, rugulose, subj»licate 

 when dry, with borders reflexed and very entire, those of the 

 branches serrulate at the apex ; costa short ; cells of the basal 

 angles numerous, short, small, somewhat obscure, the upper 

 short and narrow ; perichaatial leaves erect, the inner broadly 

 oblong-lanceolate, subulate, entire, acuminate, plicate : capsule 

 long-pedicellate, cylindrical, erect at base, curved in the middle ; 

 operculum conical ; segments yellow, cleft between the articti- 

 lations ; cilia two, as long as the segments, nodulose. — Stereodon 

 plicatilis, Mitten, 1. c. 40. 



IIab. Davis Straits (Taylor); Rocky Mountains of British America 

 (Bonrcjeau); Schonberger's Canon, Rocky Mountains, S. W. Montana 

 (Wat>^on). 



Differing from all the states of //. cupresfiiforme in the strongly reflexed 

 margins of the leaves, and in the short cells. 



158. H. cupressiforme, Linn. Widely ccspitose; tuft 

 appressed, fastigiate or inflated in the middle, soft, pale green 

 or yellowish brown, more or less glossy ; stems branching irreg- 

 ularly or pinnately ramulose : leaves densely crowded, imbricate 

 upward in two ranks, falcate in both directions, narrowly 

 lanceolate-acuminate from an ovate or oblong base, concave, 

 erect or slightly recurved on the borders, auriculate-concave at 

 the decurrent angles, entire or slightly serrulate at the apex; 

 costa double, short, obsolete ; cells very narrow, vermicular, 



