Fissidens.] BRYACE^. 87 



slighty conti'acted under the broad orifice ; lid hemisplierical, 

 conical-apiculate ; teeth short, orange at base ; segments hyaline, 

 whitish and granulose : spores large. — Lond. Journ. Bot. (1845) 

 iv. 196 ; Siilliv. Muse. Allegh. n. 181, Mosses of U. States, 24, 

 and Icon. Muse. 35, t. 22. 



Hab. Frequent on wet dripping sandstone rocks, near the water at 

 the base of dams; near Cincinnati, where it was first found by Lea ; very 

 abundant at and around Sugar Grove, Ohio. 



•i- -f- Plants larger. 



18. F. OSmundoides, Hedw. Plants of medium size, 

 tomentose, dark green, more or less densely tufted: leaves 

 numerous, broadly Ungulate, slightly falcate inward, rounded 

 and apiculate at the apex, minutely serrate on the borders; dor- 

 sal wing broad, narrowing downward to the base : flowers 

 terminal ; male plants smaller : calyptra plurilobate at base : 

 caj^sule erect or slightly inclined, oval-oblong, brown, solid ; lid 

 with a long acicular beak. — Spec. Muse. 153, t. 40 ; Bryol. Eur. 

 t. 103; Braithw. 1. c. 73, t. 11, A. Conomitriuni osmundoides, 

 Muell. Syn. ii. 526. 



HAB. On the ground, the roots and bark of trees, in swamps and peat 

 bogs ; plains and mountains. 



19. F. decipiens, DeNot. Smaller than F. adiantoides^ 

 which it closely resembles. Leaves dusky green, close, linear- 

 lanceolate, plicate to the middle, minutely serrulate all around 

 except sometimes at the base of the lamina; meshes of the 

 areolation small: male flowers axillary, on separate plants: 

 capsule short-pedicellate, small, sub-erect when empty. — Epil. 

 Bryol. Ital. 479; Schimp. Syn. Muse (ed. 2), 118 ; SuUiv. Icon. 

 Muse. Suppl. 46, t. 31 ; Braithw. 1. c. 76, t. 11, D. 



Hab. On sandy soil and limestone rocks; frequent, but hitherto gen- 

 erally considered as a small form of F. adlantoides. 



* * * Fruit axillary. 



20. F. taxifolius, Hedw. Plants 2 or 3 cm. long, fascicu- 

 late-branching at base : leaves close, lingulate-obtuse, mucronate 

 by the excurrent costa, plicate to the middle, serrate and hyaline 

 on the borders : flowers monoecious, on short basilar radiculose 

 branchlets : capsule subcernuous, inclined or pendent, oblong, 

 slightly inflated on the back, solid, dark brown ; pedicel long, 

 flexuous, reddish; lid long, narrowly beaked. — Spec. Muse. 



