322 BULLETIN OF THE UNIVERSITY OF WISCONSIN. 



350. Mnium inclinatura Lindb. Dioicous: close to M. orthor- 

 rhynchum: plants 2-3 cm. high, slender: leaves larger above, uppermost 

 oblong, obtuse, narrowly thick margined, double-toothed; costa toothed on 

 back, vanishing in point, cells small, not pitted: seta 1.5 cm. long, curved 

 above; capsule hypnoid, erect or inclined, ovate; neck long, gradually nar- 

 rowed into seta; peristome yellow; membrane of endastome J length of 

 teeth, reddish-brown, segments split; cilia delicate, scarcely nodulose; lid 

 either straight or obliquely beaked. Limpr. Laubm. 2: 456. On rocks 

 and trunks of trees (Drummond); Ottawa, Ontario; British Columbia. 



351. Mnium pseudo-lycopodioides C. M. & Kindb. M. lycopodio- 

 ides L. & J. Manual 246; not of Schwagrichen. From the closely allied 

 M. orthorrhynchum it is separated by excurrent costa of upper leaves, 

 and narrower capsules. Mac. Cat. 140. Newfoundland; New Bruns- 

 wick; Quebec; Adirondack and White Mts.; Rocky Mountains; British 

 Columbia. 



352. Mnium Niagarse Kindb. Intermediate between M. spinulosum 

 and M. serr&tum, but readily distinguished by wide mouthed capsule: 

 loosely tufted without creeping stolons, fertile stem simple: leaves dark 

 green, crisped when dry, indistinctly decurrent, doubly dentate at red- 

 margined borders, lower more loosely disposed, oblong, upper lanceolate; 

 cells rotundate-hexagonal, often pellucid; costa red brown, excurrent at 

 least in upper leaves; perichsetial leaves narrow, sublinear, dentate, inner- 

 most very short: capsule solitary, pendent, narrow, often appressed to 

 pedicel, sub-clavate-cylindric, constricted below wide mouth, teeth yellow; 

 lid obliquely rostrate; pedicel pale red: inflorescence synoicous. Mac. Cat. 

 141. On earth in woods: Ontario. 



353. Mnium Blyttii B. & S. Dioicous: tufts dense, 6-8 cm. high, 

 bright green with red, densely red radiculose: leaves more crowded above, 

 lower oval, acute, entire, upper oval oblong, acute, uppermost spatulate, 

 acute, all narrowed at base, decurrent, red marginate, toothed to middle, 

 with a double or single row of short, blunt teeth; cells not in divergent 

 rows, irregularly roundish-angulate, faintly thickened, not pitted: capsule 

 horizontal or nodding, long oblong, slightly curved; lid strongly convex, 

 blunt; annulus double or triple; teeth of peristome yellowish-green, blunt, 

 papillose, bordered; endostome nearly orange, basal membrane % length of 

 teeth, segments broad, split, suddenly subulate. Limpr. Laubm. 2: 

 460. Bases of stumps and on earth: Rocky Mountains and British Colum- 

 bia. 



354. Mnium hymenophyllum B. & S. Densely cespitose, tufts from 

 glaucescent to bright green, reddish below, when old blackish brown, inter- 

 woven with red rhizoids: plants 2-6 in. high (occasionally higher), erect, 

 branched: leaves rather crowded, erect-spreading, long; decurrent, broadly 

 ovate-acuminate, rather obtuse border narrow, entire or with prominent 



