Pohjtrichum.] BRYACE^. 265 



upper abruptly larger, crowded, glaucous-green, imbricate when 

 dry, ovate, sheathing, long-lanceolate at base, nearly erect 

 towards the apex by the inflexion of the entire borders ; costa 

 prolonged into a long white dentate awn ; pericha^tial leaves 

 linear-Ungulate, erect, very concave, the inner thin ; costa round, 

 without lamellae, the awn very long : calyptra descending below 

 the capsule : capsule tetragonal-ovate, erect, cernuous when 

 dry ; lid depressed, conical at base, short-rostrate, purple or 

 orange; teeth regular. — Spicil. Fl. Lips. 74; Bryol. Eur. t. 422. 



Var. Hoppei, Rabenh. Stems very densely cespitose, 

 short : leaves subimbricate when wet, shorter, Avith a very long 

 awn : capsule on a short thick pedicel, square or subcubical, 

 orange, always erect. 



Hab. Sandy barren ground; plains and mountains. Tlie variety in 

 the Rocky Mountains {Downie). 



4. P. juniperinum, Willd. Plants long, erect from subter- 

 ranean shoots, simple, dichotomous above : leaves spreading- 

 open when moistened, erect when dry, glaucous or dirty green, 

 long linear-lanceolate from the enlarged sheathing base, entire, 

 inflexed on the borders ; costa excurrent into a short reddish 

 brown serrulate awn ; perichtetial and perigonial leaves mem- 

 branaceous on the borders; lamelhe papillose on the margins : 

 capsule entirely covered by the calyptra, tetragonal-]u-ismatic, 

 solid, reddish orange, becoming brown when old; lid plano- 

 convex at base, apiculate, reddish. — FL Berol. 305; Hedw. 

 Spec. Muse. 89, t. 1« ; Bryol. Eur. t. 423. 



Var. alpinum, Schimp. In compact tufts; stems shorter : 

 leaves shorter, more crowded, imbricate when dry, the peri- 

 choetial long-curved : calyptra shorter, white : capsule shorter, 

 short-pedicellate. — Syn. 447. 



Hab. Barren and dry meadows; plains and mountains. The variety 

 in high mountains. 



5. p. strictum, Banks. Plants slender, densely cespitose, 

 branching ; tufts matted with a dense whitish tenacious tomen- 

 tum : leaves erect-open, strict, imbricate when dry, shorter 

 and narrower than in the last : capsule smaller, acutely angled, 

 red-orange, covered entirely by the villous calyptra. — Menz. 

 Trans. Linn. Soc. iv. 77, t. 7, fig. 1. P. oljjestre, Hoppe. P. 

 jimiperinum, var. st.rictvm, Wallm., and var. alpestre^ Bruch & 



Schimp. Bryol. Eur. t. 424 ; Sulliv. Mosses of U. States, 42. 

 Haj3. Mountains, on dry rocks; White Mountains, etc. 



