320 BULLETIN OP THE UNIVERSITY OP WISCONSIN. 



short apiculate, not oblique. Mac. Cat. 135. B. roseum L. & J. Man. 240, 

 not Schreb. In old logs and sometimes on limestone rocks in maple 

 woods: Ontario; Quebec; New Brunswick; Ohio. 



338. Bryuin lucidum Britton.— Plants slender, scattered, not gregar- 

 ious, light glossy green: stems from radiculose stolons, simple and naked 

 below: leaves rosulate, not twisted when dry, broadly elliptical above, 

 with parallel margins at base, blunt, with costa vanishing below apex, or 

 with a serrate cuspidate point; vein heavy, frequently red at base; mar- 

 gins of long prosenchymatous cells forming small appressed teeth, entire 

 below; cells of the lamina parenchymatous, elongated-hexagonal: dioicous: 

 setae single, stramineous, lustrous and sulcate; capsule reflexed, horizon- 

 tal or erect, constricted below mouth, neck short: teeth with a faint med- 

 ian line, segments of endostome split, cilia 3-4, not appendiculate, faintly 

 papillose, very irregular, variously divided and elongated; lid apiculate. 

 Bull. Torr. Bot. Club 18: 53. Bryum simjjlex Kindb., Mac. Cat. 135. 

 Milium EoeUii Broth., Bot. Centralbl. 44: 420. 1890. Idaho; Montana; 

 Washington; Gold Range, B. C. 



339. Bryum bullatum C. Mtill.— Dioicous: very small, slender: peri- 

 chaetium with few very short very slender julaceous branches: stem 

 leaves minute, very densely imbricate, oval, very shortly acuminate, car- 

 inate-concave; margin plane, quite entire; costa yellow, slender, vanishing 

 below apex; cells small; pellucid, elongate, narrowish: perichselial leaves 

 larger, longer, from a lanceolate narrow base ligulate attenuate, obtusish; 

 costa much longer, fiexuous, carinate, reddish; cells much longer, looser, 

 yellowish: capsule nutant on a slender reddish seta scarcely 1 in. long, 

 very small, oval barrel-shaped, when young bullate-tuberculose; collum 

 none; annulus broad; lid shortly convex-conic, ochraceous; peristome teeth 

 small, slender; margin scarcely cristate; segments very narrow, cilia 

 nodose (?). Flora 70: 221. 1887.— Takhin Valley, Alaska. 



340. Bryum lijematopliyllnm Kindb.— Stems short, loosely tufted or sol- 

 itary: leaves small, red, densely crowded, not decurrent, ovate or ovate ob- 

 long, acute, indistinctly margined, reflexed at entire borders; cells red, 

 nearly uniform and loose; costa very broad, not (or very shortly) excurrent: 

 perichaetial leaves oblong lanceolate: capsule (not ripe) regular, pendent, 

 obovate, lid convex, short apiculate, pedicel thin, spores small: dioicous. 

 Mac. Cat. 118. — On wet rocks: Rocky Mountains. 



341. Bryum oligochloron C. M. & Kindb.— This species is still doubt- 

 ful, being found only in a barren state. — It is peculiar in upper leaf-cells 

 very narrow; leaves ovate-lanceolate, long acuminate, nearly hyaline and 

 costa long excurrent. Mac. Cat. 129.— On rocks: British Columbia. 



342. Bryum microcephalum C. M. & Kindb.— This is a doubtful 

 species, not having been found with capsules. It somewhat resembles B. 

 ccespiticium; stem proliferous with small male buds, leaves contorted, 



