286 BULLETIN OF THE UNIVERSITY OP WISCONSIN. 



and G. Calif ornica in broader leaf base, upper % bistratose, more dense, 

 more obscure, hair point longer, striate and coarsely denticulate; from O. 

 Olneyi in more robust habit, longer hair point and incrassate inferior leaf 

 cells. Revue Bryol. 19: 85. 1892. Arizona. 



177. Grimmia prolifera C. M. & Kindb. Tufts soft, coherent and 

 very radiculose, when dry blackish below, proliferous with long green 

 shoots: stem slender, naked below, 3-4 cm. long: leaves when dry incurved 

 or crisped, upper often falcate when moist, narrow, from the oblong ap- 

 pressed subvaginant base attenuate to a short acute acumen, muticous or 

 rarely furnished with an apical hair-point-like cell, margins recurved at 

 least at one side; lower basal cells narrow rectangular, others and upper 

 subquadrate, all thin walled, faintly yellowish and pellucid; costa yellow 

 brown, percurrent. Differs from allied G. contorta principally in the 

 leaves shorter, muticous, upper more distant than lower. Mac. Cat. 67. 

 British Columbia. 



178. Grimmia tortifolia Kindb. Nearly allied to G. torquata: differs 

 principally in shorter leaves and leaf cells. Mac. Cat. 68. On rocks: 

 Revelstoke, B. C. 



179. Grimmia funalis Sch. Dioicous: densely cespitose, greenish 

 above, brown below: stems 1-5 cm., branching, eradiculose: leaves when dry 

 erect and spirally incumbent, when moist erect spreading, small, lanceolate, 

 upper with hyaline points or extended into a smooth hair, margin recurved, 

 costa narrow, vanishing at apex; basal cells rectangular, upper quadrate: 

 perichaetial leaves broader at base, concave, piliferous: seta arcuate, cap- 

 sule small, oval, slightly striate; lid conic, beak short; annulus large, com- 

 pound (3-4); teeth purple, lacunose or torn at apex into two papillose legs* 

 Husnot, Muse. Gall. 132. Smith's Sound, Greenland. 



180. Grimmia Hendersoni Ren. & Card. Closely related to G. deci- 

 piens: seta longer, capsule subcylindric and narrower, lid longer rostrate, 

 basal areolation looser. Revue Bryol 19: 86. 1892. Oregon. 



181. Grimmia pachyphylla Leiberg. Mats wide, dense, inflated: stems 

 5-12 cm. high, repeatedly dichotomous, subsimple, plants intermixed, 

 erect or ascending from a decumbent base, radiculose: leaves imbricate 

 when dry, spreading when moist, upper portion more or less recurved, ob- 

 long or broadly lanceolate, shortly decurrent, carinate above and reflexed 

 on margins, strongly costate, nerve more or less channeled, above becom- 

 ing laminoid, gradually narrowing into a sparingly toothed hair; cells long 

 rectangular below, subquadrate in middle, small quadrate above, all sinu- 

 ous; margin of 2-3 rows of quadrate cells; extreme base and angles of 

 irregular oblong or subrhombic cells: dioicous: capsule oval or oblong^ 

 pendent on a twisted seta, red, narrowed at mouth, collum distinct, sub- 

 strumose, when dry erect and irregularly 4-8 costate; teeth 2-cleft to below 

 middle, sometimes merely lacunose along middle line, papillose above, ar- 



