Dioecious; yellowish green, scarcely hoary. Stems slender, elongate, fasciculate-branched. Leaves lanceolate-acuminate, acute with a short or obsolete hair-point. Capsule elliptic-oblong, narrow at mouth; lid conico-rostrate; teeth short, pale, cleft to the base; pedicel short.

On dry rocks, North West Arm, Halifax, N.S., June 19th, 1883; on rocks in Roger's Pass, at the base of Avalanche Mountain, Selkirk Mountains; and near McLeod's Lake, B.C. (Macoun.)

(289.) R, fasciculare, Brid.; Lesq. & James, Mosses of N.America, 150; Canadian Musci, No. 416.

Trichostomum fasciculare, Drumm. Musc. Bor. - Am., No. 132.

About Lake Superior; and upon the rocks of Portage River, Rocky Mountains. (Drummond.) On rocks in McDonald's Brook, Canaan Forks, Queen's Co., N.B. (J. Moser.) On rocks along Lake Superior and on islands in Lake Nepigon; on rocks, Roger's Pass, Selkirk Mountains, at Revelstoke on the Columbia River, at Deer Park, Lower Arrow Lake, and at Hastings, B.C. (Macoun.) On rocks, Queen Charlotte Islands. (Dawson.) On rocks at New Harbor, Newfoundland. (Rev. A. Waghorne.) Alaska. (Both. Alask.) Jakobshavn, Greenland. (Fl. Gr.) Miquelon Island. (Delaware.)

(290.) R. varium, Lesq. & James, Mosses of N. America, 150.

R. helerostichum, var. obtusum, Kindb.; Canadian Musci, No. 100. Grimmia varia, Mitt. Journ. Linn. Soc. VIII., 21.

On wet rocks, close to the water below the railway bridge over the Nanaimo River, Vancouver Island, 27th April, 1887. (Macoun.) British Columbia. (Lyall, Douglas.)

(291.) R. Oreganum, Ren. & Cardt., Bot. Gaz. XIII., 198.

R. varium, Canadian Musci, No. 104.

Robust, in wide yellowish tufts. Stems prostrate and a little naked below; branches erect, 4-5 cm. long, simple or dichotomous, and with very few short branchlets. Leaves appressed when dry, erect-spreading when moist, generally more or less homomallus at the top of the branches, ovate, or broadly ovate-lanceolate, acuminate, carinate, slightly plicate below, sometimes obtuse, generally acute, muticous or with a short hyaline apiculus or a more or less elongated, shortly decurrent, slightly serrulate hair-point; borders revolute from the base to near the apex; costa percurrent, prominent on the back; cells thick-walled, linear, very sinuose, the lower mostly elongate, the upper 2-4 times longer than broad, slightly papillose. External perichetial leaves shortly piliferous, the inner muticous, of a more delicate texture of thin-walled and scarcely sinuose cells. Pedicel reddish, paler above, twisted to the left, 12-18 mm. long, 1 mm. broad; lid long-beaked; annulus large; teeth purple, very long, cleft to the base into two filiform, often unequal, noduloge and faintly papillose legs; calyptra conical, long-acuminate, brownish at apex, laciniate-lobulate at base.

A remarkable species intermediate between R. canescens and R. heterostichum, but more closely allied to the last, from which it differs by the aspect, the yellowish color, the robustness and thickness of the stems, the pedicel twice longer and the teeth much more elongated.

On loose boulders in woods near McLeod's Lake, Northern British Columbia; on rocks, Mount Tolmie, near Victoria, Vancouver Island; common on loose boulders at Yale, B.C., May 17th, 1875. (Macoun.) On rocks, Texada Island, Gulf of Georgia, B.C. (Dawson.)

(292.) R. speciosum, C. Muell. (n. sp.)

Found on Vancouver Island by Dr. S. Roell in 1888. This species was found by me at Victoria in 1875, and named by Austin R. lanuginosum, and also R. canescens var. ericoides. It was collected again on April 26th, 1887, and named by Dr. Kindberg R. heterostichum. It is very common on the rocks in oak woods around Victoria. Fruiting abundantly. (Macoun.)

(293.) R, microcarpum, Brid.; Lesq. & James, Mosses of N. America, 150; Canadian Musci, No. 101.

Trichostomum microcarpum, Drumm. Musc Bor. - Am., No. 128.

Upon rocks, shore of Lake Superior. (Drummond.) Dry rocks, North West Arm, Halifax, N.S.; on rocks, Mount Albert, Gaspé Co., Que.; on rocks, 25 miles north of Michipicotin, Lake Superior; dry rocks, Nepigon River, and along the lake; on earth on stones, Asulcan Glacier, Selkirk Mountains. (Macoun.) Skeena River, B.C. (J. M. Macoun.) Godhavn, Greenland. (Fl. Gr.)

(294.) R, lanuginosum, Brid.; Lesq. & James, Mosses of N. America, 151; Canadian Musci, No. 102.

Trichostomum lanuginosum, Drumm. Musc. Bor. - Am., No. 134. Grimmia lanuginosa, Mitt. Journ. Linn. Soc. VIII., 21.

Miquelon Island. (Delàmare). Upon a rock near the "Height of Land," Rocky Mountains, very rare, only a single patch being seen. (Drummond.) Nottingham Island and North Bluff, Hudson Strait. (R. Bell.) Halifax Co., N.S. (McKay.) On rocks at Louisburg, Cape Breton Island; summit of Mount Albert, Gaspé Co., Que.; Mount Aylmer, Rocky Mountains, 8,000 feet alt. (Macoun.) Vancouver Island. (Wood.) Kotzebue Sound. (Roth. Alask.) . St. Paul Island, Behring Sea. 1891. (J. M. Macoun.) Baffin's Bay. (Ross, Voy.) Smith's Sound. (Dr. Kane.) Smith's Sound, between lat. 78° -82°. (Br. Hayes.) Shannon Island, Greenland. (Fl. Gr.)

(295.) R. canescens, Brid.; Lesq. & James, Mosses of N.America, 151; Canadian Musci, No. 103.

Grimmia canescens, Mitt. Journ. Linn. Soc. VIII., 21.

Miquelon Island. (Delàmare.) Digge's Island, Hudson Strait. - (R. Bell.') On sand a few miles up St. Anne des Monts River, Gaspé Co., Que.; on rocks, north shore of Lake Superior; and at Point aux Pins, near Sault Ste. Marie; limestone rocks at Hector and Mount Aylmer, Rocky Mountains; on rocks, Roger's Pass, Selkirk Mountains; common on rocks and sand at Revel stoke, and on rocks, Pass Creek, at Sproat, Columbia River, B.C. (Macoun.) Vancouver Island. (Lyall.) Ounalaska Island, Behring Sea. 1891. (J. M. Macoun.) Godhavn, Greenland. (Fl. Gr.) Chance Cove, Newfoundland. (Rev. A. Waghorne.)

Var. ericoides, Bruch & Schimp.; Lesq. & James, Mosses of N. America, 151; Canadian Musci, No. 417.