181. F. Oakesiana, Aust., Proc. Acad. Phila. 1869, 226.

On balsam fir and black ash trees at Baddeck, Cape Breton Island, N.S., July 9th, 1898. (Macoun.) Apparently not rare in that locality.

182. p. Bolanderi, Aust.

F. Hallii, Aust.; Pearson, List Can. Hep. p. 2.

We have two specimens in our herbarium collected on May 7th, 1875, at Victoria, Vancouver Island, one of which was named F. Hallii by Austin and the other F. Oakesiana. Both are placed here. Other specimens were collected on dead Spircea discolor, Pyrus rivularis and Douglas fir on Sea's farm, near Victoria, Vancouver Island, May, 1893; on small trees at Hastings, Burrard Inlet, B.C., April 26, 1889; on rocks, Deer Park, Arrow Lake, Columbia River, B.C., June 8th, 1890. (Macoun.)

183. p. Eboracensis, Gottsche.

Very common on trees, sometimes on rocks.

On fir trees, Jupiter River, Anticosti; on birch and small ash trees at Truro, N.S.; on trees of various kinds, quite common, Cape Breton Island, N.S., July, 1898; on trees, Brackley Point and Cove Head, Prince Edward Island; at Woodstock, N.B., July, 1899; on fir and birch trees, Ste. Anne des Monts River, Gaspé Co., Que.; on bark of various trees at Ottawa, Ont.; on trees, Leamy's Lake, Hull, Que.; abundant at Belleville, Hastings Co.; on beech trees, Seymour West, Northumberland Co.; Sudbury Junction, Algoma; on rocks, Lake Nipigon, Ont.; on trees, Queenston Heights, Ont., 1901; common in Algonquin Park, Ont., August, 1900; on trees, Red Deer River, Porcupine Mountains, Man.; on trees at Hector, Rocky Mountains, B.C.; on trees, Cedar Hill, near Victoria, Vancouver Island. (Macoun.)

184. p. Virginica, Gottsche.

On bark of trees, apparently rare in Canada.

New Brunswick. (James.) Near Belleville, Hastings Co., Ont., 1868; on old trees in James Terrill's woods, near Wooler, Ont., Oct. 16th, 1893. (Macoun.)

185. p. Chilcootiensis, Steph.

Chilcoot, Alaska. (Krause.)

186. p. Asagrayana, Mont.

On trees and rocks, frequent in Canada.

Miquelon Island, Gulf of St. Lawrence. (Delàmare.) Charlotte-town, Prince Edward Island. (James.) On trees, Tobique River, N.B. (Hay) Bass River, Kent Co., N.B. (Prof. Fowler.) On birch trees, Gaspé Co., Que.; on balsam fir, Baddeck, Cape Breton Island, N.S., July, 1898; on fir trees at Woodstock, N.B., July 4th, 1899; on trees at Truro, N.S.; on rocks in Gull Lake, Frontenac Co., Ont.; on rocks, Sudbury Junction, Algoma, Ont.; not uncommon on tree trunks at Câche Lake, Algonquin Park, Ont., June, 1900. (Macoun)

187. p. Californica, (Aust.) Evans.

F. Asagrayana, Mont. var. Califomica, Aust.; Pearson, List Can. Hep. p. 3.

On trees and rocks on the Pacific coast; on trees at Hastings, Burrard Inlet, B.C., April, 1889; on rocks, Parson's Mountain and on trees at Victoria, Nanaimo and Comox, Vancouver Island, 1893. (Macoun.)

188. p. tamarisci, (Linn.) Dumort.

Miquelon Island, Gulf of St. Lawrence. (Delàmare.) Newfoundland. (Waghorne.) On rocks, Margaree, Cape Breton Island, N.S., July 22nd, 1898. The west coast form referred here in Pearson's list belongs to the next species. (Macoun.)

189. F. Nisquallensis, Sulliv.

On bark of young Douglas fir and other trees at Victoria; on the bark of yellow cedar Mount Mark, Qualicum, and on alder trees at Comox, Vancouver Island; on trees at Hastings, Burrard Inlet, B.C.; on rocks at Yale, B.C., May, 1889. (Macoun.) On trees at Carmanah, west coast of Vancouver Island, May 18th, 1892. (J. M. Macoun.) Chilcoot, Alaska. (Krause.) Cape Fox, New Metlakahtla, Sitka, Hot Springs, Wrangel, Orca and Yaku-tat, Alaska. (Evans.)

190. P. Pranciscana, M. A. Howe.

Sitka and Hot Springs, Alaska. (Evans.) This species will likely be found on Vancouver Island or indeed may now be included in F. Californica.

191. P. Selwyniana, Pearson, List Can. Hep., p. I, 1890.

This is a small reddish-brown species collected on the bark of Thuya occidentalism near the mouth of Ste. Anne des Monts River, Gaspé Co., Que., Aug. 19th, 1882. (Macoun.) Not collected since in Canada but has been found in Ohio by Mr. W. C. Werner.