(145.) S. Donii, (Sm.) C. Muell.; Braithw. British Moss Flora, 116.

Anodvs Donianus, Bruch & Schimp,; Lesq. & James, Mosses of N.

America, 96. Gymnostomum pusillum, (n. sp.) Drumm. Musc. Bor. - Am., No. 22.

Sandstone rocks of Baptiste River, Rocky Mountains. (Drummond.) Under the surface of flat limestone rocks, Owen Sound, Ont. (Macoun.)

(146.) S. pusilla, Bruch & Schimp.; Lesq. & James, Mosses of N. America, 34; Canadian Musci, No. 59.

On limestone rocks, Gaspé Basin, Que.; under flat limestone rocks in woods north of Aylmer Road, a little beyond Hull, Que. (Macoun.) Kelly's Island, Lake Erie. (Lesquereux.)

(147.) S. calcarea, Bruch & Schimp.; Lesq. & James, Mosses of N. America, 97.

Weissia calcarea, Drumm. Musc. Bor. - Am., No. 65.

Limestone rocks of Lake "Winnipeg. (Drummond.) Limestone rocks at Owen Sound, Ont., 1890. (Macoun.)

(148.) S. recurvata, Bruch & Schimp.; Lesq. & James, Mosses of N. America, 97; Canadian Musci, No. 60, in part.

Abundant on detached limestone rocks at Owen Sound, Ont.; dry canon near Devil's Lake, Rocky Mountains. (Macoun.) Devil's Hole, Niagara, Ont. (Mrs. Boy.)

Var. arcuata, Lesq. & James, Mosses of N. America, 97.

Weissia Seligeri, Drumm. Muse. Bor. - Am., No. 66. Sandstone rocks, near the Rocky Mountains. (Drummond.)

(149.) S. campylopoda, Kindb, (n. sp.) Canadian Musci, No; 60, in part.

Agrees with Seligeria recurvata in the shape of the capsule and the arcuate pedicel, but differs considerably in the leaves being broader, very much shorter, aublinear obtuse, rarely short-acuminate and subacute, and the costa not excurrent, the perichetial leaves ovate-oblong, thin-costate, the peristome darker red. The male flower is fixed on the side of the female.

On damp and shaded limestone rocks at Owen Sound, Ont., Sept. 16th, 1890. (Macoun.)