musci. (mosses.) 625 



leaves oblong, obtuse, apiculate, the costa vanishing near the apex; capsule 

 oval-oblong, erect or oblique ; operculum long-rostratc ; calyptra subulate from 

 a mitriform lobed base ; inflorescence as in No. 2. — On the roots of trees, in 

 swamps. (Eu.) 



* # Fruit axillary. 



8. F. SUDbasilariS, Hedw. Stems 5" -10" high, densely caspitose, 

 radiculose, branched ; leaves elongated-oblong, obtuse, apiculate, eroded-dentic- 

 ulate at the summit, near which the costa vanishes ; capsule erect, oval-oblong 

 on a pedicel arising from near the base of the stem ; operculum long-rostrate ; 

 calyptra cuculliform. — On decayed logs and trees, near the ground. 



9. F. taxifdlillS, Hedw. Stems 5" -8" high, branched and fasciculate 

 from the base ; leaves elongated-oblong, minutely denticulate on the subpellu- 

 cid margin, obtuse ; costa shortly cxcurrent ; capsule oblong or obovate, inclined 

 or horizontal ; operculum, calyptra, and origin of the pedicel as in the last • 

 monoecious; male flower gemmiform at the base of the fertile stem. — Woods, 

 in sandy soil. (Tab. 15.) (Eu.) 



10. F. adiantoides, Hedw. Stems much branched, 1'- 3' long; leaves 

 oblong-lanceolate, serrulate, 2 or 3 rows of the marginal cellules transparent ; 

 costa percurrent ; capsule oval-oblong, inclined ; pedicel from the middle of the 

 stem ; operculum and calyptra as in No. 8 ; inflorescence as iu No. 5. — Shaded 

 moist places, on the ground, and on wet rocks. (Eu.) 



11. F. poly podioides, Hedw. Stems broad, 1'- 2' high; leaves ovate- 

 or elongated-oblong ; costa vanishing at the subdenticulate obtuse apex ; capsule 

 obovate-oblong ; operculum subulate-rostrate from a large rather hemispherical 

 base ; pedicel short, flexuous, arising from the upper part of the stem ; calyptra 

 cuculliform : dioecious. — Wet rocks, Georgia, Lesquereux. 



12. F. grandifrosis, Brid. Stems erect, 2' - 3' high, sparingly branched ; 

 leaves linear-lanceolate, thick, composed of several strata of cellules, the costa 

 ceasing below the apex ; fertile flower gemmiform, axillary, containing 30-60 

 archegonia; male flower and fruit unknown. — Niagara Falls (American side), 

 on the perpendicular faces of rocks, moistened by the spray. (Eu.) 



18. COJfOMITRiritt, Montagne. (Tab. 15.) 



Calyptra small, campanulate-mitriform, lobed at the base. Operculum 

 hemispherical, apiculate. Capsule immersed spherical, nearly 6essile, exan- 

 nulate. Peristome none. Inflorescence moncocious or hermaphrodite : para- 

 physes globosely distended at the apex. — A genus, by its feeble dehiscence, 

 globose capsule, and the characters of vegetation, forming an intermediate 

 link between Physeomitrella among Cleistocarpous, and Physcomitrium 

 among Stegocarpous Mosses. (Name from d<pav7/r, unapparent, and fir/yfia, 

 rupture, or suture ; i. e. dehiscence obscure.) 



1. C. Jlllutmini, Mont. Stems 2' -5' long, filiform, floating, much 

 divided; leaves distant, linear-lanceolate, acute, costate to the apex; capsule 

 obconic, tapering into a short pedicel, the two together scarcely longer than the 

 operculum, whose rostrum only is covered by the calyptra. — Ohio and south- 

 ward, attached to stones in shallow brooks, &c. (Tab. 15.) (Eu.) 



53 



