76 GEOLOGICAL SURVEY 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 WhiU) On scrub oak. Green- 

 wood, Man.; near Yorkton, Assa. (77-fo.f. IVa/ktr.) Chamisso Island 

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

 and Glacier Spit, Cook's Inlet, Alaska. {Rothrock.^ 



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, 190 1. {Macoun) 

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



•79. P. ajstroidea, (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. {RicJiardson.) 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 Tnarifia, 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. {Waghorjte.) On Rigaud Mountain, Vaudreuil Co., Que. 

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

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



