CATALOGUE OF CANADIAN PLANTS. 73 



104°, VV. (/. PV. Tyrrell.) On rocks, Never's Rapids, Queen's Co., 

 N.B. (/. Moser) On boulders, Carleton Co., N.B. {G. U. Hay.) 

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

 Dry rocks, Stony Lake, Peterboro' Co., Ont. {7 has. Walker.) On 

 boulders. Big Intervale, Margaree, Cape Breton Island, N.S., 

 July, 1898 ; on boulders along Ste. Anne des Monts River, Gaspe 

 Co., Que.; on boulders in woods around Ottawa, Ont.; very 

 common in Algonquin Park, Ont., 1900 ; on rocks on Moose 

 Mountain and in Crow's Nest Pass, Rocky Mountains ; on rocks, 

 Blackwater River, B.C.; on rocks and old logs, Deer Park, Col- 

 umbia Valley. B.C.; on rocks at Hastings, Burrard Inlet. B.C.; on 

 rocks, Burnside Road, Victoria, Vancouver Island. (Macoun.) 



68. P. molliuscvila, Ach. . 



Not uncommon on earth in the southern parts of the prairie 

 region from Manitoba to the Rocky Mountains ; on earth at Old 

 Wives Creek, Assa. ; in the Bow River Pass at Morley, and by 

 the lake in the Crow's Nest Pass, Rocky Mountains. {Macoun.) 



69. P. centrifuga, (Linn.) Ach. 



Alpine and subalpine rocks. 



Greenland. {Brafith.) Arctic America. {Vahl.) Digge's Island, 

 Hudson Strait. (Dr. R. Bell.) Blanc Sablon, Labrador. (Wag- 

 horne.) Clearwater Lake, Labrador, July, 1896 ; Summit Lake, 

 Manicouagan River, Que, 1895. {A. P. Low.) Newfoundland. 

 (Despreaux.) Tobique River, N B. [G. U. Hay.) On rocks, Ta- 

 •dousac, Que. {Drianmond.) On Rigaud Mountain, Vaudreuil 

 Co., Que. {Rev. G. Ducharme) Along the northeast coast of 

 Lake Superior, a.-d along Nipigon Lake and river. {Macoun.) 

 North shore of Lake Superior. {Agassis!) 



*i^- P. incurva, (Pers.) Fk. 



On granitic rocks, alpine and arctic. Greenland. {Branth.) 

 Labrador. {Waghorne.) 



71. P. amtaigua, (Wulf^) Ach. 



On trunks, dead wood and rocks. 



Greenland. {Arct. Man.) Arctic Am&nca.. {Richardson.) Trinity 

 Bay, Newfoundland. {W^ghor?ie.) On dead spruce logs at the 



