Seligeria.] BRYACE^. 97 



Hab. Shaded limestone rocks, St. Louis, Missouri (Drummond); 

 Devil's Hole, near Niagara Falls (G. W. Clinton); New Jersey (Austin); 

 Kelly's Island, Lake Erie (Lesquereux). 



2. S. calcarea, Bruch & Schimp. Differs from the pre- 

 ceding in the shorter and broader leaves, the lower lanceolate, 

 the upper ovate, oblong at base, concave, abruptly narrowed to 

 a subulate blunt apex, the costa flat, enlarged upward and fill- 

 ing the whole width of the lamina ; capsule larger, more solid, 

 with the beak of the lid shorter, and the teeth broader and 

 more densely articulate: spores larger. — Bryol. Eur. t. 110; 

 Braithw. 1. c. 120, t. 17, B. Bryiim calcareum, Dicks. PI. 

 Ciypt. Weisia calcarea, Hedw. Spec. Muse. 66, t. xi. 



Hab. Limestone rocks, Owen Sound, Canada (Macoiin). 



3. S. recurvata, Bruch & Schimp. Plants widely cespitose, 

 very short : uj^per leaves oval-lanceolate at base, canaliculate 

 above, long-subulate by the excurrent costa, entire ; pcrichastial 

 leaves sheathing, tubulose at base, lanceolate-subulate, flexuous 

 above : capsule subglobose, inflated at the collum, thin, loosely 

 areolate, red at the orifice ; pedicel long, yellowish, arcuate 

 when moistened, erect when dry ; lid straight, subulate-beaked ; 

 teeth linear, obtuse or lanceolate, sometimes irregularly bifid at 

 the apex. — Bryol. Eur. t. 112. Grimmia recurvata, Hedw. 

 Muse. Frond, i. 102, t. 38. S. setacea, Lindb.; Braithw. 1. c. 121, 

 t. 17, C. 



Var. arcuata. Leaves shorter ; pedicel slightly arched. — 

 Weisia Seligeri, Hook. & Wils. in Drumm. Muse. Am. n. 66. 



Hab. Devil's Hole, Niagara {Clinton, Mrs. Roy); limestone rocks, 

 Easton, Penn. (James) ; the variety on the molasse of Lake Winnipeg 

 (Driimmond). 



4. S. tristicha, Bruch & Schimp. Plants rigid and cespi- 

 tose, short, branching : leaves distinctly three-ranked, close, 

 rigid, elliptical, whitish at base, narrowly linear to the blunt 

 apex ; perichaetial leaves longer, subulate and recurved at the 

 apex ; costa excurrent : capsule as in the preceding species ; 

 beak of the lid inclined, orange-colored ; teeth a little narrower. 

 — Bryol. Eur. t. 111. Weisia tristicha, Brid. Spec. Muse. 116. 

 jS. trifaria, Lindb.; Braithw. 1. c. 118, t. 16, K. 



Hab. Limestone rocks, in shaded ravines. Central Ohio (Sullivant); 

 very rare. 



Distinguished from the two preceding species by its black color and the 

 three-ranked arrangement of the leaves. 





