Fissidens.] BRYACE^. 85 



oblong-oval, narrowed and confluent to the pedicel ; lid ros- 

 tellate ; teeth split to the middle. — Muse. Allegh. n. 182 ; 

 Mem. Am. Acad. n. ser. iii. 60, t. 2, B ; Mosses of U. States 24 

 and 103, and Icon. Muse. 36, t. 23. I^. incurvus, var. exiguus^ 

 Aust. Muse. Apical, n. 103. 



Hab. On stones in moist and sliaded ravines, dry channels of brooks, 

 etc. ; common. 



11. F. minutulus, Sulliv. Size and asj)ect of the last : 

 leaves 4 to 10 j)airs, linear-oblong, lanceolate to the apex, bor- 

 dered by a narrow margin ujj to the slightly serrulate apex, the 

 auricles broadly margined, and the dorsal lamina extending to 

 below the middle ; costa percurrent : calyptra shorter, scarcely 

 reaching the base of the operculum : capsule oval-oblong ; oper- 

 culum longer-beaked than in the preceding species ; teeth dark 

 red, cleft to below the middle into long linear-granulose segments. 

 — Muse. Allegh. n. 183; Mem. Am. Acad. n. ser. iii. 58, t. 2, A; 

 Mosses of U. States, 24, and Icon. Muse. 37, t. 24. I^. bryokles, 

 Hook & Wils. in Drumm. Muse. Am. (Coll. II.), n. 39 and 40. 

 I^. mcurvus, var. mi7iutidus, Aust. Muse. Appal, n. 102. 



Hab. Moist rocks in woods ; dry cliannels in woods, on stones. 



12. F. Hallii, Aust. Size of JF'. incicrvics, from which it 

 differs in the crenulate immarginate leaves, the longer-beaked lid, 

 the calyptra not cleft and scarcely descending to the base of the 

 beak, and the dioecious inflorescence. — Coult. Bot. Gaz. ii. 97. 



Hab. Texas (E. Hall). 



13. F. Ravenelii, Sulliv. Leaves 5 to 15 pairs, erect or 

 curved on one side, linear-oblong, acute, close and opaque ; 

 auricles prolonged to the middle, broadly marginate and dis- 

 tinctly dentate ; lamina and dorsal wing not margined, minutely 

 denticulate; areolation very dense, of minute round-quadrate 

 chlorophyllose cells ; costa flexuous, hyaline : flowers terminal ; 

 male plants very small, with 2 or 3 pairs of leaves : capsule 

 oblong-erect, equal, of thin texture, minutely papillose ; lid 

 enlarged at base, with an inclined beak. — Mem. Am. Acad, 

 n. ser. iv. 171, t. 2, Mosses of U. States 24, and Icon. Muse. 39, 

 t. 25. 



Hab. Damp bricks or earth, Santee Canal, South Carolina (Ravenel)', 

 moist ground, Society Hill, iSTorth Carolina (Curtis). 



14. F. Donnellii, Aust. Leaves 3 or 4 pairs, not margined, 

 crenulate-serrate on the borders, impillose, the lower oblong- 



