66 GEOLOGICAL AND NATURAL HISTORY SURVEY OF CANADA. 



(251.) C. nivalis, Kindb., Bull. Torr. Bot. Club, XVII, 271 ; Cana- 

 dian Musci, No. 415. 



Tufts blackish, low and compact. Stems denudate below. Leaves 

 dusky above, small, short, ovate-lanceolate, acute, muticous or indis- 

 tinctly piliferous, flat on the borders, the uppermost and the perichetial 

 ones longer and narrower with a smooth and long hair-point ; cells 

 quadrate, chlorophyllose, the lower hyaline, short-rectangular ; costa 

 perCurrent. Inflorescense dioecious. Capsule exserted, wide-mouthed 

 when empty, not rugose nor striate ; calyptra dimidiate ; teeth orange, 

 nearly entire, spreading when dry ; lid mammillate ; pedicel when 

 dry arcuate, when moist nearly straight, elongate, pale. 



Differs from G. plagiopodia in the longer acute leaves and the 

 pedicel very much longer than the capsule. 



On inclined rocks in compact wide-spreading tufts on the Gold 

 flange, north of Griffin Lake, B.C., alt. 7,000 feet, August 10th, 1889. 

 (Macoun.) 



(252.) C. tenella, C. Muell. ; Canadian Musci, No. 501. 



This species, allied to G. nivalis, is described by C. Mueller, in the 

 revision of the Mosses collected by Dr. Roall. 



Summit of Mount Queest, Gold Eange, B.C., alt. 7,000 feet, 1889. 

 (J. M. Macoun.) On dry rocks at Deer Park, Lower Arrow Lake, 

 and near the mouth of Pass Creek, Columbia Eiver, B.C., 1890. 

 (Jtfacown.) 



(253.) C. pulvinata, Smith; Lesq. & James, Mosses of N. America, 

 138 ; Canadian Musci, No. 90. 



In small tufts on dry rocks on the slopes of Sproat Mountain, 

 Columbia River, and on calcareous tufa at the Hot Springs, Kootanie 

 Lake ; dry rocks, Blackwater River, Cache Creek, and atLytton, B.C. ; 

 abundant on Mount Erskine, Salt Spring Island, Gulf of Georgia, B.C. 

 (Macoun.) 



(254.) C. sarcocalyx, Kindb., Bull. Torr. Club, XVII., 271. 



Differs from the allied Grimmia leucophcea principally in the leaves 

 being furnished with a faintly denticulate hair-point, the capsule 

 short-oval, the lid obliquely beaked, the pedicel doubly longer than the 

 capsule, sheath pale-red, inflated and carnose. The leaves are short, 

 very broad at the base as in G. leucophcea ; the cells are nearly all 

 quadrate. 



On rocks on the summit of the mountain between the Nicola and 



