This small moss grows in large, but only 1 cm. high, dry, blackish or when moist, green tufts.
On the sloping face of broken rocks at the summit of the mountains back of Sproat, Columbia River, B.C., alt. 4,000 feet, June 24th, 1890. (Macoun.)
(248.) G. pachyneurula, C. M. & Kindb. (n. sp.)
Tufts small, green. Leaves small, when dry appressed, not twisted, when moist, speading, short ovate-lanceolate, recurved on both sides, hairless and obtuse; cells uniform subquadrate, not erose, the alar scarcely distinct; costa percurrent, thick, and smooth at the back.
This species is found only in a barren state, but appears to belong to the section Schistidium.
On rocks, near the Whirlpool on the west side of the Columbia, at Revelstoke, B.C. May 7th, 1890. (Macoun.)
N. America, 138; Canadian Musci, No. 89.
On dry rocks at Morley, foot-hills of Rocky Mountains, and at Lytton, B.C. (Macoun.)
(250.) G. plagiopodia, Hedw.; Lesq. & James, Mosses of N. America, 138.
On dry rocks, Cypress Hills, Alberta; on sandstone rocks along Peace River, 50 miles below Dunvegan; on rocks, Blackwater River, B.C. (Macoun.)
Var. pilifera, Lesq. & James, Mosses of N. America, 138; Canadian Musci, No. 511.
On dry rocks along Peterson's Creek, in the flats near the railway station at Kamloops, B.C., 1890. (Macoun.)
(251.) C. nivalis, Kindb., Bull. Torr. Bot. Club, XVII, 271; Canadian Musci, No. 415.
Tufts blackish, low and compact. Stems denudate below. Leaves dusky above, small, short, ovate-lanceolate, acute, muticous or indistinctly 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.
Diners 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 Range, 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. Roell.
Summit of Mount Queest, Gold Range, 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 River, B.C., 1890. (Macoun.)
(253.) G. 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, Cāche Creek, and at Lytton, 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 leucofhaea 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. leucophoea; the cells are nearly all quadrate.
On locks on the summit of the mountain between the Nicola and
Thompson rivers at Spence's Bridge, B.C., alt. 3,500 feet, May 28th, 1889. (Macoun.)
(255.) C. contorta, Bruch & Sehimp.; Lesq. & James, Mosses of N. America, 139.
On rocks in the vicinity of McLeod's Lake, northern British Columbia, June 25th, 1875. (Macoun.)
G. spirilis. Hook. & Taylor; Flora of Greenland, 347.
Dioecious. Densely caespitose, readily falling asunder, grey-green or yellowish green above, reddish brown or fuscous below. Stems 1-2 in. high, slender, erect, sub-dichotomous, free from radicles. Leaves when dry erect and spirally incumbent, when moist erecto-patent, small, lanceolate, upper with hyaline points, or extended into a smooth hair, the margin a little recurved, nerve narrow, vanishing at the apex; cells at base narrowly rectangular, quadrate and hyaline at margin, above quadrate and sinuose, upper in two strata, minute, quadrate. Perichetial leaves broader at base, concave, piliferous; pedicel shorter than the perichetial leaves, curved, pale yellow; calyptra conico mitriform, 5-lobed, capsule small, ovate, pale reddish brown, 8-striate; annulus broad of 3-4 rows of cells, lid from a convex base; short-pointed; teeth rufous purple, lacunose or torn at apex. Male plants taller and more slender; inflorescence terminal, inner bracts oblong-acute.
Smith's Sound, between lat. 78°-82°. (Dr. Hayes.)
(257.) C - prolifera, C. M. & Kindb. (n. sp.)
Tufts soft, coherent and very radiculose, dry blackish below, proliferous with long green shoots. Stem slender, naked below, 3-4 cm. long. Leaves dry incurved or crisped, the upper often falcate when moist, narrow, from the oblong appressed subvaginant base attenuate to a shorter 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, the other and the upper subquadrate, all thin-walled, faintly yellowish and pellucid; costa yellow-brown, percurrent.
Differs from the allied Grimmia contorta (Wahlenb.) principally in the shorter, muticous, at the margin recurved, leaves, the upper more distant than the lower. It is also distinct from G. hamulosa, Lesq. (fide C. Mueller.)