Musci. (mosses.) (17) 617 



nal on a short branch. — Minute terrestrial perennials, with mostly simple stems 

 and lanceolate-subulate, continuously costate leaves of a loose oblong areolation 

 at their base, elsewhere smaller, compact and roundish. (Named aftier BrucJi, a 

 distinguished bryologist.) 



1. B. flexiiosa^ Schwsegr. Stems flexuose-erect, simple ; leaves distant, 

 spreading from an oblong base, long-subulate, channelled, denticulate at the 

 apex; capsule obovate-oblong, exserted, abruptly passing into a rather long 

 slender and flexuous pedicel, covered for half its length by the calyptra, — Var. 

 NIGRICANS : Whole plant longer ; leaves shorter, appressed ; spores larger, 

 dai-k brown. — New England to Florida, and westward; the var. on Eaccoon 

 Mountains, Alabama, Lesquereux, and Cleaveland, Ohio, Prof. Cassels. 



2. B. Beyricbiana, Hampe. Has (according to Schwsegrichen) the 

 leaves and pedicel of No. 1, but a much shorter stem, and the calyptra entirely 

 covering the oblong capsule. — Maryland, near Baltimore, Beyricli. (Not since 

 detected.) 



3. B. Ijrevipes, Hook. Stems short; leaves as in No. 1, but erect, over- 

 topping the globose-oval somewhat pyrifonn capsule ; pedicel short ; spores 

 nearly twice as large as in the first species. — Louisiana, Drummond. 



4. IB, brevifdlia, Sulliv. Size of No. 3 ; leaves much shorter, broader, 

 erect, reaching only to the base of the large obovate-oblong and short-pedi- 

 celled capsule ; spores as in No. 1. — (Bruchia Vogesiaca, var. 2, Hook Sf Wils. 

 in Drum. 2d Coll. No. 15 partly.) — Louisiana, Drummond: South Carolina, Have- 

 nel: Texas, Wright. (Tab. I.) 



5. B. Bavenelii; Wils. mss. Almost stemless ; leaves lanceolate-subu- 

 late ; costa excuiTcnt and with a scabrous apex ; capsule globose-pyriform, ob- 

 tusely apiculate, slightly exserted, short-pedicelled ; calyptra strongly papillose, 

 8-10-lobed at the base. — South Carolina, Eavenel. — (Very near the Chilian 

 B. Hampeana, C. Mull.) 



B. STEGOCAEPI. — Capsule dehiscing by a deciduous operculum. 

 Tkibe n. WEISIEJE. 



6. OYMNOSTOMITM, Hedw. (Tab. L) 



Calyptra cucuUiform, Operculum conic-rostrate. Capsule suboval, annu- 

 late, exserted. Peristome none. Inflorescence dioecious : male flower terminal, 

 gemmiform. — Eather small, densely csespitose species, with linear-lanceolate cos- 

 tate leaves of a close, opaque, rather quadrate areolation. (Name from yvfivos, 

 naked, and (ttohu, a mouth; no peristome.) 



1. €r. curvirostrum, Hedw. Stems fastigiately branched ; capsule 

 obovate, shining ; operculum with a long oblique rostnun. — Frequent, in dense 

 cushions, on wet limestone rocks. (Eu.) 



2. Cr. riipestre, Schwasgr. Smaller than the last; capsule oval, and 

 with an erect elongated-conical operculum. — In similar situations with No. 1 : 

 variable. (Tab. I.) (Eu.) 



52* 



