310 BULLETIN OP THE UNIVERSITY OF WISCONSIN. 



more rarely with female flowers; tufts low, thick, pale green, reddish 

 radiculose within: leaves not decurrent; lower ovate-lanceolate, comal 

 leaves loosely imbricate, lanceolate from an ovate base, concave, narrowly 

 margined, generally somewhat revolute, more rarely plane; costa strong, 

 excurrent into a long yellow faintly toothed hair; cells above rhombic, be- 

 low rectangular, at the insertion red, and quadrate or rectangular: seta 

 arcuate above; capsule nodding or pendent, obovate, not constricted under 

 mouth; peristome yellowish, pale above, narrowly bordered, inner peri- 

 stome same height, free or slightly adherent, cilia none or rudimentary. 

 Limpr. Laubm. 2: 308. On earth: Gaspe Co., Quebec; on damp rocks: 

 Hector, Rocky Mountains; Sabine Island, Greenland. 



288. Bryum mamillatum Lindb. Autoicous: tufts very thick and 

 low: lower leaves small and distant, comal leaves crowded, not decurrent, 

 long lanceolate, pointed, margin with a thick yellow border; costa very 

 thick, excurrent into a short faintly toothed point; cells thin walled, 

 rhombic above: capsule pendent, symmetric, globose-pyriform, neck short, 

 rarely somewhat curved, longitudinally furrowed when dry; teeth of peris- 

 tome orange, insertion red, yellow above, bordered; inner peristome free, 

 yellow, basal membrane one-third length of teeth, cilia short, three. 

 Limpr. Laubm. 2: 328. Greenland. 



389. Bryum Labradorense Philib. Plants branching, in compact 

 tufts, radiculose: leaves pale green, reddish at the base, oval-lanceolate, 

 with a large sheathing base, decurrent, acuminate with a short point 

 formed by costa, which is flexuose and somewhat toothed; otherwise mar- 

 gin entire; lower leaves plane and nearly emarginate; upper leaves faintly 

 marginate with two rows of elongated cells; border slightly reflexed at 

 base; cells distinct, compact, rhomboidal: polygamous: capsule oval, nar- 

 rowed slightly at the base to form a short collum; lid convex with a scarcely 

 salient beak; teeth of peristome very short, regularly attenuate, nearly 

 triangular; inner peristome adherent and imperfect, segments linear, lacu- 

 nose between articulations; cilia none; annulus very large; spores very 

 large. Rev. Bryol. 14:55. 1887. Labrador. 



290. Bryum stenotrichum C. Mull. Synoicous: tufts slender, low, 

 yellowish: fertile stems short, surrounded by a few slender very short ros- 

 ulate stipitate innovations: pericheetial leaves erect-imbricate, spreading 

 when moist, small, concave, from a broad-ovate purpurascent base longish 

 acuminate; costa yellowish, thick, percurrent into an elongate slender 

 scarcely dentate sharp point; margin strongly revolute from base to plane 

 point, quite entire, broadly yellowish bordered; lamina confluent with 

 subula; cells regular, small, yellowish, scarcely granulose: stem leaves 

 smaller, shorter arista te: seta slender, pale red, 1 inch long, cernuous ar- 

 cuate above; capsule small, from a slender neck narrowly oblong, ochra- 

 ceous brown; lid small, conic, short pointed; annulus broad, revoluble; 



