Musci. (mosses.) (45) 645 



cylindrical, slightly curved, short-necked ; pedicels 1-5 from the same peri- 

 chasth ; male iiower somewhat discoid. — Shaded woods, at the base of trees : 

 common. — Among the largest of the genus. (Eu.) 



9. B. "Walileutoergii, Schwsegr, Patches extensive, pale glaucous- 

 green; stems erect, or decumbent at the base, l'-2' long; leaves serrate, the 

 lower ones ovate-acuminate, the uppermost lanceolate, serrate at the apex, with a 

 rather loose areolation ; capsule short-pyrifonn, pendulous, short-necked, when 

 dry wide-mouthed ; annulus none ; male flower somewhat discoid, conspicuous, 

 on a slender stem. — Springy and gravelly places; not uncommon: but the 

 fmit rare. (Eu.) • 



10. B. arg'enteilin, Linn. Patches silvery-white ; stems 4" -10" high, 

 divided ; branches julaceous ; leaves very concave, entire, loosely areolated ; the 

 lower distant, broadly ovate ; the upper ovate-lanceolate, imbricating ; capsule 

 abruptly pendulous, oval-oblong, deep purple when ripe. — On exposed ground, 

 roofs, pavements, &c. : extremely common. — A small species. (Eu.) 



* * * Leaves mostly ovate ; the casta extending to the apex. {Dioecious,) 



11. B. pseudo-triquetrum, Schwsegr. Patches large, deep green, 

 inclining to blackish or purpUsh; stems l'-3' high, radiculose; leaves ovate 

 and ovate-lanceolate, slightly bordered, the margins recurved, shghtly serrulate 

 at the apex ; capsule pendulous, oblong-pyiiform, with a tapering neck. — Wet 

 rocks, in hilly districts. Southern Ohio. — Eesembles B. bimum, but is more 

 robust, and with a different inflorescence. (Eu.) 



12. B. turbmatum, Hedw. Patches pale green, sometimes with a 

 reddish tinge ; stems 1'- 2' long; leaves ovate-acuminate and oblong-lanceolate, 

 subdecuiTcnt, shghtly recm-ved on the margins, the marginal cellules long and 

 narrow ; capsule ventricose-pyriform, very much constricted under the mouth 

 when dry. — Wet rocks, below Niagara Palls. (Eu.) 



13. B. I>UVa.lii, Voit. Distinguished from the preceding (some forms 

 of which it much resembles) by its more slender stems; its remote, spreading, 

 very much decurrent, less elongated leaves, of a looser areolation and with plane 

 margins ; capsule less constricted under the mouth when diy. — Mountains of 

 New England, Oakes. (Eu.) 



14. B. alpinum, L. Tufts dense, deep red, shining; stems (|^'- 2' high) 

 stiff; leaves lanceolate, nearly erect, closely imbricating, straight, recurved 

 on the margins ; costa strong, rigid ; capsule oblong-pyriform, pendulous, 

 deep red. — Alpine region of the White Mountains, New Hampshire, Oalces. 

 (Eu.) 



* * * # Leaves ovate ; the costa excurrent. 



•I- Inflorescence hermaphrodite. 



15. B. cennium, Hedw. Closely csespitose; stems branched, radicu- 

 lose ; leaves ovate-acuminate, concave, vnth recm-ved margins ; capsule pendu- 

 lous, oblong-pyriform, the mouth and operculum very small ; inner peristome 

 imperfect, adherent to the teeth. — Wet woods. Northern Ohio. (Eu.) 



16. B. bimum, Schreb. Stems l'-2' long, matted by the purplish 

 radicels ; leaves above yellowish or lurid-green, below reddish-brown, ovate- 



