CATALOGUE OF CANADIAN PLANTS. 69 



Var. sulcata, Nyl. 



On trees, dead wood, fences and rocks. 



On old boards and posts, Main Station, Sable Island, N.S., July, 

 1899 ; on trees, Jupiter River, Anticosti, and along the Gaspe coast. 

 Que.; not uncommon on old logs, fence-rails and trunks, at Ottawa, 

 Ont.; on fence-rails, near Wooler, Ont.; on rocks, Lake Nipigon, 

 Ont.; on old logs, Jumping Pound Creek, Rocky Mountains ; on 

 rocks. Deer Park, Columbia Valley, B.C.; on trees and old logs, 

 Hastings, Burrard Inlet, B.C.; on oak trees, Burnside Road, Vic- 

 toria, and on the old wharf at Comox, Vancouver Island. {Macoun.) 

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

 St. George Island, Behring Sea, and Middleton Island, Alaska. 

 (/. M. Macoun.) 



Var. panniformis, (Ach.) Sch^r. 



Greenland. {Arct. Man.) Arctic America. {Herb. Hooker.) 

 L'Anse au Clair and Battle Harbour, Labrador. (IVa^kome.) On 

 rocks. Lake Nipigon, Ont., July 17th, 1884. (Macoufi.) 



Var. omphalodes, Fr. 



On rocks in alpine districts. 



Greenland. (Arct. Man.) On rocks at Louisburg, Cape Breton 

 Island, N.S., July, 1898 ; on rocks, Moose Mountain, Rocky 

 Mountains, alt. 6000 feet ; on rocks, Deer Park, Columbia Valley, 

 B.C. (Macoun.) On rocks, St. Paul Island, Cape Vancouver and 

 Unalaska Island, Behring Sea. (/. M. Macoun) 



Var. furfurascens, Sch^r. 



On rocks, Blanc Sablon, Labrador. {IVaghorne) 



60. P. physodes, (Linn.) var. vulgaris, Korb. 



Greenland. {Arct. Man) Greenland. {Warming) On trees, 

 Clearwater Lake, Labrador, July, 1896. {A. P. Low) On spruce 

 twigs, Lat. 61°, Long. 104°, W. (/. W. Tyrrell.^ On dead wood, 

 Canaan Forks, N.B. (/. Moser) Spruce trees. Lake Mistassini, 

 northern Quebec, June, 1885. (/. M. Macoun) On old boards. 

 Main Station, Sable Island, N.S., July, 1899 i quite common on 

 trunks of trees, rails and old logs. Cape Breton Island, N.S., July, 



