286 BtJLLETIN OP THE UNIVERSITY OP WISCONSIN. 



and O. Californica in broader leaf base, upper % bistratose, more dense, 

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

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

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



177. Grinimia 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 O. contorta principally in the 

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

 — British Columbia. 



178. Grimmia tortifolia Kindb. — Nearly allied to O. torquata: differs 

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

 Revelstoke, B. 0. 



179. Grimmia fnnalis 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: 

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

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

 pound (3-i); 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 O. 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, coUum distinct, sub- 

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

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



