7<D GEOLOGICAL SURVEY OF CANADA. 



1898 ; on rocks and dead wood, seldom fertile, on trees com- 

 monly so, Perce, Bay desChaleurs, Bonaventure Co., Que.; on ash 

 and other trees at Ottawa, Ont.; on trunks at Belleville, Ont.; 

 on fence-rails at Brighton, Ont.; on old fence-rails, Seymour 

 West, Northumberland Co., Ont.; on rocks, North Bay, Lake 

 Nipissing ; Algonquin Park, Ont.; June, 1900 ; on trees, Thunder 

 Bay, Lake Superior; on dead wood and rocks, Nipigon River, Ont.; 

 on trees along Jumping Pound Creek and Bragg's Creek, Rocky 

 Mountains ; on trees at Donald, B.C., July 6th, 1885 ; on rocks, 

 Devil's Lake, Rocky Mountains ; on old logs, Hastings, Burrard 

 Inlet, B.C.; on rocks near Victoria, and on the old wharfc at 

 Comox, Vancouver Island. (Macoun?) On trees, New Westmin- 

 ster, B.C. (Law.) On dead wood, Alert Bay, Vancouver Island. 

 (Dr. G. M. Dawson.) 



Var. obscurata, ACH. 



L'Anse au Mort, Labrador. (Waghorne.) Alpine rocks, Arctic 

 America. (Herb. Hooker.) On rocks on Moose Mountain, alt. 

 6,000 feet, Rocky Mountains, July 2nd, 1897. (Macoun.) Islands 

 of Behring Strait. ( Wright.) 



Var. enteromorpha, TUCKERM. 



Blanc Sablon, Labrador. (Waghorne.) Very abundant on 

 trees around Victoria, at Nanaimo, Qualicum, and Comox, Van- 

 couver Island; on trees at Hastings, Burrard Inlet, B.C.; on 

 trees near McLeod's Lake, northern British Columbia. (Macoun?) 

 On trees, Fort Rupert, Vancouver Island. (Dr. G. M. Dazvson.) 

 Chelliwack Valley, B.C. (/. M. Macoun.) 



Var. vittata, ACH. 



Bay Bull Arm, Trinity Bay and Goose Arm, Newfoundland. 

 (Waghorne.) On spruce trees along Ste. Anne des Monts River, 

 Gaspe Co., Que. (Macoun.) At Carmanah, near Cape Beale, Van- 

 couver Island. (/. M. Macoun.) 



61. P. encausta, (SMITH) NYL. 



Alpine rocks, Greenland. (Vahl.) Labrador. (Waghorne.) 



Var. alpicola, NYL. 



A blackened alpine condition. 



Greenland. (Vahl.) Labrador. (Waghorne.) 



