CATALOGUE OF CANADIAN PLANTS, 75 



have been gathered on earth on the prairie at Old Wives' 

 Creek, Assa., May 30th, 1895. {Macoun.) On rocks, Lake Mis- 

 tassini, northern Quebec, 1885. {J. M. Macoun.) Rocky Moun- 

 tain and Arctic America. {Richardson.) 



'76. P. aquila, (Ach.) Nyl, var. detonsa, Tuckerm. 



On rocks and trees. 



On the bases of beech trees at Edmonton, Ont. {James White) 



VV. P. pulverulenta, (Schreb.) Nyl. 



On trunks and rocks, and sometimes on the earth. 



Arctic America. {Richardson.) On earth, Greenland. {Branth.) 

 On trees at Ottawa, Shannonville, Belleville and Brighton, Ont. ; 

 on rocks, Nipigon River, Ont.; on rocks in woods. Jumping Pound 

 Creek, and at Banff, Rocky Mountains ; on rocks, Deer Park, 

 Columbia Valley, B.C.; on rocks, Blackwater River, B.C.; on 

 earth and rocks at Lytton, B.C., April 17th, 1889. {Macoun.) 



Var. muscigena, Schreb. 



Greenland. {Arct. Man.) Newfoundland. {Despreauz.) Arctic 

 America. {Herb. Hooker.) L'Anse au Mort and L'Anse au Clair, 

 Labrador; Middle Arm, Newfoundland. {Waghorne.) 



Var. Beucoleiptes, Tuckerm. 



On rocks, Little Fox River, Gaspe Co., Que.; on rocks, Nipi- 

 gon River, Ont., June 1884 ; on rocks, Deer Park, Lower Arrow 

 Lake, Columbia River, B.C.; on rocks along Jumping Pound 

 Creek, Rocky Mountains, June 14th, 1897. {Macoun.) 



'78. P. stellaris, (Linn.) Tuckerm. 



On trees, dead wood, rocks and stones. 



Greenland. {Branth.) Arctic America. {Richardson.) Inde- 

 pendent, Labrador. {Waghorne.) On Rigaud Mountain, Vau- 

 dreuil Co., Que. {Rev. G. Ducharme.) On trees, but not com- 

 mon, at Baddeck and Big Intervale, Cape Breton Island, N.S., 

 July, 1898 ; on dead wood, Truro, N.S.; on trees, Ste Anne des 

 Monts River, Gaspe Co., Que.; very common on trees and rails at 

 Ottawa and Casselman, Ont.; at Belleville and Brighton, Ont.; 

 on trees at Winnipeg and Manitoba House, Man. ; along Old 



