68 GEOLOGICAL SURVEY OF CANADA. 



51. P. tiliacea, (Hoffm.) Floerk. 



On trees and stones ; commonly on beech and spruce trees. 



Ste. Anne des Monts River, Gaspe Co., Que. ; on beech trees,. 

 Big Intervale, Margaree, Cape Breton Island, N.S., July 1898; on 

 trees in numerous places around Hull, Que., and Ottawa, Ont.; 

 Paugan Falls, Gatineau River, Que. ; on trees, Terrill's farm, near 

 Wooler, Ont.; on birch trunks, Algonquin Park, Ont., July, 1900. 

 {Macoun.) On bark of trees, Canaan Forks, N.B. (/. Moser.) On 

 Rigaud Mountain, Vaudreuil Co., Que. {Rev. G. Ducharme.) 



58. P. Borreri, Turn. 



On trees and dead wood ; rare. Only collected in the neigh- 

 bourhood of Ottawa, Ont. {Macoun^ 



Var. rudecta, Tuckerm. 



On dead wood at Ottawa, Ont.; on old rails, Brighton, Nor- 

 thumberland Co., Ont., Oct., 1893. {Macoun.') On maples at Ed- 

 monton, Ont. (/. White) On old rails, Big Intervale, Margaree, 

 Cape Breton Island, July, 1898 ; on trunks, Algonquin Park, Ont., 

 June, 1900 ; on bark at Niagara Falls and Pelee Point, Ont., 1901. 

 {Macoun) On Rigaud Mountain, Vaudreuil Co., Que. {Rev. G. 

 Ducharme.) 



59. P. saxatilis, (Linn.) Fr. 



Common on trees, dead wood, fences and rocks. 



Greenland. {Warming.) On trees,Bald Mountain, Tobique River, 

 N.B. {G. U.Hay.) On Rigaud Mountain, Vaudreuil Co., Que. 

 {Rev. G. Ducharme) Common on old logs on Cape Breton Island, 

 N.S., and in woods, fruiting abundantly ; old logs, Truro, N.S.; on 

 trees, Ste. Anne des Monts River, Gaspe Co., Que. ; on trees^ 

 Jupiter River, Anticosti, Que.; on old rails and trees at Ottawa and 

 Belleville, Ont.; on trunks, Algonquin Park, Ont., June, 1900 ; on 

 trees. North Bay, Lake Nipissing ; on trees. Lake Nipigon, Ont.; 

 on trees. Red Deer River, Man.; on spruce trees, Jumping Pound 

 Creek, and in the Crow's Nest Pass, Rocky Mountains ; on trees,. 

 Deer Park, Columbia Valley, B.C.; on rocks, Hastings, Burrard 

 Inlet, B.C.; on trees, Burnside Road, Victoria, and on Mount 

 Benson, Nanaimo, Vancouver Island. {Macoun) On earth and 

 logs, Fort Rupert, Vancouver Island. {Dr. G. M. Dawson) Chil- 

 liwack Valley, B.C. ; St. Paul and St. George islands, Behring Sea. 

 (/. M. Macoun) 



