35. U. sulphurea, (MÜll.) Th. Fr.

On rocks, Greenland. (J. Vahl.) Rocks, Arctic America; dwarfed and sterile, Melville Island. (Parry's 2nd voyage.)

36. U. barbata, (Linn.) Fr. var. florida Fr.

The variety or form, hirta, is very common, but florida is rare in Canada. On dead wood, North West Arm, Halifax, N.S., June 20th, 1883. (Macoun)

Specimens, without fruit, very glaucous and nearly smooth, have been collected on trees in Crow's Nest Pass, Rocky Mountains, alt. 4,000 feet, Aug., 1897, and on Douglas fir at Comox, Vancouver Island, May 3, 1887. The latter were referred to typical U. barbata by Dr. Eckfeldt.

Var. hirta, Fr.

Very common on trees and old fences.

On a sandy point in the Bay of St. George, Newfoundland. (Waghorne.) On trees, Bass River, Kent Co., N.B. (Prof. Fowler.) On dead branches, Rigaud Mountain, Vaudreuil Co., Que. (Rev. G. Ducharme.) On spruce trees at Edmonton, Ont. (James White.) On trees at Truro, N.S.; on trees, Brackley Point, Prince Edward Island; on spruce trees, Cape Breton Island, N.S., but rare; on trees and old fences at Ottawa, Ont.; on fence-rails Belleville and Brighton, Ont.; on balsam fir, Algonquin Park, Ont., June, 1900; on trees, Lake Nipigon, Ont.; on trees, Manitoba House and Porcupine Mountains, Man.; on trees at Morley, foothills of Rocky Mountains; on spruce trees, C. P. R. station, Banff, and at Jumping Pound Creek, Rocky Mountains; on branches and trunks, Deer Park, Lower Arrow Lake, Columbia River, B.C.; on oak trees around Victoria, Vancouver Island. (Macoun.)

Var. rubiginea, Michx.

On trees at Round Lake, Ottawa Co., Que. (D'Urban.) On trees in a swamp near Belleville, Ont. (Macoun) On spruce trees at Edmonton, Ont. (James White)

Var. ceratina, Schaer.

On trees, See. Anne des Monts River, Gaspé Co., Que.; rather common in spruce woods at Baddeck and other parts of Cape Breton Island, N.S.; on trees, Lake Nipigon, Ont.; on balsam fir Algonquin Park, Ont., June, 1900; in a swamp, C.P.Ry. station, Banff, Rocky Mountains; along Jumping Pound Creek and in the Crow's Nest Pass, Rocky Mountains; on trees at Hastings, Burrard Inlet, B.C.; on trees at Comox, Vancouver Island; on trees near Victoria, Vancouver Island. (Macoun.)

Var. dasypoga, Fr.

Forteau Bay, Labrador; Shoal Point Bay, Wild Cove, Little Harbour, Frenchman's Cove and Bay Bull's Arm, Newfoundland. (Wagkorne.) On trees along Jupiter River, Anticosti; on trees, Truro, N.S.; on trees, Lake Superior; on trees in woods, Duck Mountain, Man.; on spruce trees, Jumping Pound Creek, foothills of Rocky Mountains; on trees at Hastings, Burrard Inlet, B.C.; on trees, Sea's farm, Victoria, Vancouver Island. (Macoun.)

Var. plicata, Fr.

On trees, summit of Mount Albert, Gaspé Co., Que.; on spruce trees, Baddeck and Big Intervale, Cape Breton Island, N.S.; on trees in Algonquin Park, Ont., June, 1900; on trees, Current River, Lake Superior; at Morley and Jumping Pound Creek, foothills of Rocky Mountains; on spruce trees, Bow River Pass, Rocky Mountains; on trees at Revelstoke, B.C.; on trees at Hastings, Burrard Inlet, B.C. (Macoun.)

Var. articulata, Ach.

On trees at Burrard Inlet, B.C., April 23rd, 1889; at Victoria, Vancouver Island, May 7th, 1875. (Macoun.)

Var. hirtella, Arn.

On a sandy point in the Bay of St. George, Newfoundland. (Waghorne.)

37. U. angulata, Ach.

On trees, Round Lake, Ottawa Co., Que. (D'Urban.) On trees around Lake Superior; on tamarac in the "Big Swamp," Murray, Northumberland Co., Ont. (Macoun.)

38. U. trichodea, Ach.

On trees, Nova Scotia. (Menzies fide Tuckerman.) On trees in woods, Baddeck, Cape Breton Island, July 9th, 1898; also on fir trees, Gaspe coast, Quebec. (Macoun.) On trees at Carmanah Bay, Vancouver Island. (J. M. Macoun.)

39. U. longissima, Ach.

Newfoundland. (Herb. Hooker) On trees, Kent Co., N.B. (Prof, Fowler) On trees, Tadousac, Que. (A. T. Drummond) North shore of Lake Superior. (Agassiz.) On trees, Halifax, N.S.; abundant on trees in woods at Baddeck and other localities, Cape Breton Island, N.S., July, 1898; on balsam fir, Algonquin Park, Ont., June, 1900; on trees, North Bay, Lake Nipissing; northeast coast of Lake Superior; on trees, Hastings, Burrard Inlet, B.C.; on trees, Burnside Road, Victoria, Vancouver Island. (Macoun) Alaska. (Dr. Kellogg)

40. U. cavernosa, Tuckerm.

On trees, north shore of Lake Superior. (Agassiz.) On spruce trees, Lake Nipigon; on trees at Banff, Rocky Mountains; on spruce trees at Victoria, Vancouver Island. (Macoun.) British Columbia. (Dr. Lyall)