— 378 — 



limbate, nearly crowded, sometimes short-decurrent: comal glo- 

 merate; upper cells subrhombic; costa often abbreviate. Cap- 

 sule thick round-oval or subobovate, somewhat long-necked and 

 constricted below mouth, reddish brown; teeth broader than in 

 B. pendulum; segments also orange, adhering; pedicel about 1 

 0. m. long, scarcely emerging above tufts. Fruiting stem di- 

 stinct and tomentose; shoots short. — Arctic district r. Amer. 

 Alaska: J. M. Macoun. 



b. Spores somewhat small, about 0,02 m. m. Leaves not 

 decurrent. 

 139.B.lacustre Blandow. — »B. Barnesi Woods: Limpricht. 



Leaves ovate-oblong short-acuminate acute not or indistinctly 

 limbate, broadly recurved nearly all ai'ound, entire; costa gen. 

 subpercurrent. Capsule small suboval short-necked; lid small; 

 teeth pale yellow; pedicel long. Stems very short, loosely tufted; 

 shoots filiform. — Wet sand often near lakes, princ. below alps. 

 Eur. not r. Norway! Finland: Lindberg. Germany: Warnstorf. 

 England: Rogers. 

 140.B.Knowltoni Barnes hot. gazette 1889. 



» Leaves ovate to obovate-lanceolate short- acuminate, us. in- 

 distinctly limbate, slightly revolute or plane, entire or nearly 

 so; costa not or shortly excurrent. Capsule oblong-piriform; 

 cilia rudimentary; lid small; pedicel about 1 c. m. long. Tufts 

 dense and tomentose, 1 — 2 c. m. high. Spores about 0,025 

 m. m. — Crevices in rocks r. Amer. Can. N. Foundl.*: Barnes. 

 141.B.flexuosum Austin. 



DifEers from B. lacustre in leaves pale red not reflexed; cap- 

 sule narrower; lid large; tufts dense less low. Dioecious. — 

 Gravelly ground near water r. Amer. Can. Brit. Col.: Macoun. 



B. Leaves broadly limbate, loosely disposed and decurrent 

 (at least the lower). Us. monoecious. 

 142.B.Moei Schimper. 



sLeaves very narrow, ovate-lanceolate long-acuminate entire: 

 upper reflexed; apical cells suboblong; costa long-excurrent. 

 Capsule thick suboval not constricted; lid small flat mamillate; 

 teeth orange. Tufts sparingly radiculose, 2 cm. high. — 

 Northern alps r. Eur. Norway: N. G. Moe»: Schimper and 

 Limpricht. 

 143.B.palndicola Schimper. 



sLower leaves small, subovate short-acuminate acute, loosely 

 disposed: upper somewhat large, crowded, gen. broad-oval, re- 

 flexed aU. around, yellow-limbate; costa short-excurrent. Cap- 



