On the bank of a creek in a beaver meadow, Huntingdon, North Hastings, Ont., September 8th, 1865; on wet limestone rocks at the head of Lake Louise, near Laggan, Rocky Mountains; on earth on the mountains north of Griffin Lake, Gold Range, B.C., August 10th, 1889. (Macoun.) Yakutat Bay, Alaska. (Evans)
33. P. Lyeilii, (Hook.) S. F. Gray.
On moss in a wet place, Canaan Forks, Queen's Co., N. B. (J. Moser.) Along a small brook, Sidney, Hastings Co., Ont., Sept. 17th, 1868; on the bank of a brook, Algonquin Park, Ont., Aug. 10th, 1900. (Macoun.)
37. B. pusilla, Linn.
On earth by roadsides, Union Road, Brackley Point, Prince Edward Island; on wet rocks, Half-Way Brook, Cape Breton Island, July, 1898; on earth in a ravine at Woodstock, N.B., July, 1899; on earth along the Gaspé Coast, Que., Aug. 10th, 1882; on earth subject to inundations at Leamy's Lake, Hull, Que.; on wet clay banks, Meech's Lake, near Chelsea, Que.; clay banks at the mouth of the Lievre River, Buckingham, Que.; not rare by lake shores, Algonquin Park, Ont., June, 1900; on earth along the Fraser River, Port Heney, B.C. (Macoun.) Juneau, Alaska. (Evans.)
57. G. Underwoodiana, M. A. Howe.
On earth in a railway cutting, Hastings, B. C, April 6th, 1889; on wet rocks, North Arm, Burrard Inlet, near Hastings, B.C., April 29th, 1889. (Macoun.)
58. P. suecicus, (Gottsche) Lindb.
Scoresby Sound, Lat. 70o 15', East Greenland. (C.Jansen.)
59. A. fennica, (Gottsche) Lindb.
On limestone rocks at the Narrows, Lake Manitoba, June 16th, 1881; on earth and logs, Kicking Horse Lake, Rocky Mountains, July 23rd, 1885. (Macoun.)
69. A. Reichardtii, (Gottsche) Steph.
Columbia Fiord, Orca, and Port Wells, Alaska. (Evans.)
129. H. laxifolia, (Hook.) Spruce.