.WACOUN.] CATALOGUE OP CANADIAN PLANTS. Y3 



(282.) R. Macounii, Kindb., Bull. Torr. Bot. Club, XVI., 93; 

 Canadian Musci, No. 418. 



Plants fastigiately branching ; innovations without lateral fasciculate 

 branchlets. Tufts loosely caespitose, naked at the base, brown, with 

 green tips. Leaves loose, crispate when dry, patent or squarrose when 

 moist, ovate-lanceolate, acute, muticous, smooth and entire, at one 

 side slightly reflexed or erect, on the other always erect ; upper cells 

 quadrate and obscure, scarcely or not erose, lower linear and sinuose, 

 marginal uniseriate, quadrate-rectangular and hyaline, basal yellow ; 

 costa blown and percurrent. Capsule oblong, dark-brown, not striate ; 

 teeth orange, pertuse or cleft to below the middle, smooth ; pedicel 

 0"5 cm. long, straight or sub-erect and contorquate. 



In large masses on huge boulders between Cathedral Mountain and 

 Mount Stephen near Field, Eocky Mountains : also on rocks near the 

 Glacier Hotel, Selkirk Mountains ; on the summit of the Gold Range, 

 north of Griffin Lake, B.C., alt. 7,000 feet. (Maeoun.) 



(283.) R. alternuatum, CM. & Kindb.; Canadian Musci, No. 524. 



Allied to E. Macounii. Stem lower, 3-4 cm. high, more branched 

 above. Tufts loose, not naked at the base, brown with, green tips. 

 Leaves not crisped, when moist suberect or subpatent, nearly straight, 

 ovate-lanceolate, acuminate-acute, often furnished with a short dentate 

 hair point, smooth, reflexed at the base at least on one side ; all cells 

 erose, the lower linear, the upper short, angular ; costa greenish, stout, 

 percun-ent. Perigonial leaves subovate or short-acuminate, acute or 

 subobtuse. Female plants not found. 



On boulders at the base of Avalanche Mountain, Roger's Pass, 

 Selkirk Mountains, B.C., Aug. 5th, 1890. (Macoun.) 



(284.) R. robustifolium, Kindb., Bull. Torr. Bot. Club, XVIL, 272. 



R. obscurum, Kindb. ; Canadian Musci, No. 419. 



Differs from R. Macounii in the leaves being less crispate, (very 

 variable in color, sometimes dark green) pellucid, very squarrose 

 when moist, more reflexed on the borders, often furnished with a short 

 hair-point. Capsule oval, striate or plicate when dry ; teeth dark 

 purple-brown, deeper cleft, papillose ; the beak of the lid oblique, needle- 

 shaped, very much shorter than the capsule ; pedicel slightly curved. 



Both these species differ from H. varium and R. Oreganum in the 

 short pedicel and longer leaves. On rocks in a brook, Gold Range, 

 north of Griffin Lake, B.C., alt. 7,000 feet ; Mount Arrowsmith, Van- 

 couver Island, alt. 5,700 feet. July 17th, 1887. {Macoun.') 



