MUSCI. (MOSSES.) 645 



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

 chaeth ; male flower somewhat discoid. Shaded woods, at the base of trees : 

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



9. B. \Valllenbergii, Schwaegr. Patches extensive, pale glaucous- 

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

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

 rather loose areolation ; capsule short-pyriform, 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 

 fruit rare. (Eu.) 



10. B. argeiiteum, 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 costa extending to tfie apex. (DioEcious.) 



11. B. pseildo-triquetruin, Schwoegr. Patches large, deep green, 

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

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

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

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

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



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

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

 subdecurrent, slightly recurved on the margins, the marginal cellules long and 

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

 when dry. Wet rocks, below Niagara Falls. (Eu.) 



13. B. Dtivulii, 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 dry. Mountains of 

 New England, Oakes. (Eu.) 



14. B. alpiiiillll, L. Tufts dense, deep red, shining; stems ('-2' high 1 

 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, Oakes. 

 lEu.) 



* * * * Leaves ovate ; the costa excuirent. 



*- Inflorescence, hermaphrodite. 



15. B. cer 11 il il ill, Hedw. Closely caespitose ; stems branched, radicu- 

 lose ; leaves ovate-acuminate, concave, with recurved 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. biiiiuiii, Schreb. Stems l'-2' long, matted by the purplish 

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



