76 " GEOLOGICAL JURVEY OF CANADA. 



Wives' Creek ; on poplar trees, Moose Mountain, Assa. and on 

 Wood Mountain, Assa., 1895 > o" trees near Vic oria, Vancouver 

 Island, May, 1893. (Macoun.) On old rails and apple and plum 

 trees, Edmonton, Ont. (James White.) On scrub oak, Green- 

 wood, Man.; near Yorkton, Assa.. {Tkos. Walker.) Chamisso Island 

 in Eschscholtz Bay ; Little Koniushi Island, of Shumagin Group; 

 and Glacier Spit, Cook's Inlet, Alaska. {Rotkrock.) 



Var. aipolia, Nyl. 



On bark of black ash, Seymour West, Northumberland Co., 

 Ont.; on bark of trees at Ottawa, Ont., and at Aylmer, Que.; on 

 trunks, Pelee Point, Essex Co., Ont., May 27th, 1901. {Macou?i.) 

 On maple and black ash trees, Edmonton, Ont. {James White.) 



79. P. astroidea, (Fr.) Nyl. 



On old rails and trunks of trees, 



On old rails near Hintonburg, Ont. ; abundant on the upper part 

 of a fallen hemlock, near Hemlock Lake, McKay's woods, Ottawa, 

 Ont., and on old rails at Aylmer, Que., May 22nd, 1897.. {Macoun.) 



80. P. hispida, (Schreb.) Tuckerm. 



On trees, dead wood and rocks. 



Arctic America. {Richardso7i.) On old rails, quite rare. Big 

 Intervale, Cape Breton Island, N.S., July, 1898 ; on rocks at 

 Campbellton, Restigouche River, N.B.; on boulders at Belleville, 

 and fence-rails at Brighton, and on trees, Seymour West, Ont.; 

 on poplar trees, Stony Mountain, Man.; on poplar bark. Sea's 

 farm, Victoria, Vancouver Island. (Macoun.) 



Var. leptalea, Ach. 



Parmelia marina, E. Nyl. 



MuUin's Cove, Labrador. (Waghorne.) On an old wharf at 

 Comox, Vancouver Island, June 24th, 1893, (Macoun.) 



81. P. caesia, (Hoffm.) Nyl. 



On rocks, Greenland. (Branth.) On rocks. Long Island, New- 

 foundland. (Waghorne.) On Rigaud Mountain, Vaudreuil Co., Que. 

 (Rev. G. Ducharme.) On rocks, Csiche Lake, Algonquin Park, 

 Ont., July, 1900; on rocks. Lake Nipigon, Ont.; on rocks in 



