103. P. interruptus, (Nees) Dumort.

Greenland. (Vahl.) Labrador. Collected by Waghorne. (Underwood.) On earth in Dow's Swamp, near Ottawa, Ont.; in water in bogs at Albert Canon, Selkirk Mountains, B.C.; on wet logs at Quesnel, Fraser River, B.C., June 4th, 1875. (Macoun.)

104. P. asplenioides, (Linn.) Dumort.

P. porelloides, (Torrey) Pearson's List No. 91.

On earth, Canaan Forks, Queen's Co., N.B. (Moser.) On damp earth and rocks by brooks, Margaree and Half-Way Brook, Cape Breton Island, N.S., July, 1898; on logs at Truro and Yarmouth, N.S., June, 1883; on earth, Cove Head, Prince Edward Island, July, 1888; on earth, Gaspe coast and on gravel along Ste. Anne des Monts River, Gaspé Co., Que., August, 1882; on the margins of brooks at Ottawa and at Meech's Lake, near Chelsea, Que., Sept., 24th, 1893; on earth by brooks at Belleville, Hastings Co., Ont.; on rocks at Owen Sound, Ont; on rocks in woods, Algonquin Park, Ont., June, 1900; amongst moss and on rocks, Dog Island, Lake Nipigon, Ont.; on clay banks, Queenston Heights, Ont., 1901; on earth, Sudbury Junction, Algoma, Ont.; on damp rocks, Current River, Thunder Bay, Lake Superior; on wet rocks at Banff and Hector, Rocky Mountains; on wet earth, House Mountain, near Lesser Slave Lake, Athabasca, Sept. 20th, 1872; on wet logs, McLeod's Lake, British Columbia, Lat. 550; on rocks at Donald, B.C.; on wet earth at Revelstoke, Pass Creek and Robson, Columbia River, B.C.; on wet earth at Agassiz and Burrard Inlet, B.C., 1889; on rocks near Victoria, on Mount Arrowsmith and Mount Mark, and at Union Mines, Comox, Vancouver Island. (Macoun.) Farragut Bay, Sitka, Yakatut Bay and Unalaska, Alaska. (Evans.)