Orthotrichum.] BRYACE^. 175 



to the short-naked vaginule, ovate, soft, pale yellow, smooth 

 when empty and slightly contracted under the orifice ; teeth 

 linear, separating along the dividing line or bifid, revolute when 

 dry; cilia 16, deeply erose, punctulate, yellow. — Bryol. Eur. 

 t. 220. 0. striatum, Hedw. Muse. Frond, ii. 99, t. 36, in part 

 (fig, 9). O. Mogeri, Sulliv. Mosses of U. States, 33. 



Hab. On trees in the woods. Upper Canada {Brummond); Lake 

 Superior [Agasslz). Very rare in America. 



26. O. pallens, Bruch. Plants in soft pale green tufts : 

 leaves soft, oblong and long-lanceolate, blunt or acuminate, the 

 borders revolute m the middle, slightly recurved at the base 

 and apex ; areolation papillose : calyj)tra conical-campanulate, 

 pale, naked : capsule oblong, with a collum as long as the 

 sporangium, yellowish, broadly darker-striate ; cilia 16, some- 

 times 8, yellowish, very thin, as long as the dark yellow teeth. 

 — Brid. Bryol. Univ. i. 788 ; Bryol. Eur. t. 218. 0. Eogeri, 

 Brid. ; Schwaegr. Suppl. i. 2. 16, t. 53; Bryol. Eur. t. 212, and 

 Suppl. t. 8, 



Hab. Eock Eiver, British Columhia {Lyall). 



This species is quoted by Mitten (Journ. Linn. Soc. viii. 23), but we 

 have seen no American specimens. 



****** Capsule ribbed: lilants small. 



27. O. pulchellum, Brunton. Plants in small loose irregu- 

 lar tufts, pale green : leaves open, flexuous when moist, curved 

 or slightly crispate when dry, soft, linear-lanceolate from a 

 slightly enlarged ovate base, acuminate ; borders reflexed in the 

 lower part, plane above ; areolation very minutely punctiform 

 and papillose in the upper jiart, loose, pale and smooth toward 

 the base : calyptra campanulate, naked, pale yellow, brownish 

 at apex : capsule small, oblong, short-necked, thin, yellowish, 

 exserted on a somewhat long pedicel, twisted to the left Avhen 

 dry, cylindrical, somewhat costate and constricted under the 

 brown orifice when old ; teeth long, approximate in pairs, re- 

 flexed when dry, dark orange ; cilia 16, composed of a single 

 series of cells here and there appendiculate, ferruginous. — Smith, 

 Engl. Bot. t. 1787 ; Bryol. Eur. t. 223. 



Var. longipes, Sulliv. Pedicel a little longer : teeth and 

 cilia generally 16. 



Hab. Oregon (Ilall); Coal Harbor, Alaska (Harrington). 



0. Columhicum, Mitten (Jouni. Linn. Soc. viii. 24), is according to 

 Sullivant's note in his herbarium a variety witli sliorter periclnetial 



