CATALOGUE OF CANADIAN PLANTS, 1 55 



sandstone rocks, Wood Mountain, Assa., June, 1895; quite com- 

 mon on granite boulders at Ottawa, Ont., and Hull, Que. April, _ 

 1897. {Macoun.) 



420. L. lapicida, (Ach.) Nyl. 



Closely related to L. pruinosa. 



Labrador or Newfoundland. {Waghorne &de Eckfeldt.) Green- 

 land. {Arct. Man.) On limestone shingle near the Hogsback, by 

 the Rideau River, near Ottawa, Ont., May 7th, 1897 ; quite com- 

 mon on limestone rocks everywhere around Ottawa ; at Wood 

 Mountain, Assa., June, 1895. (.Macoun.) 



421. L. tessellata, Floerke. 



Granitic rocks. Greenland. (Vahl.) Labrador or Newfound- 

 land. {Waghorne fide Eckfeldt.) Along the north shore of Lake 

 Superior. {Agassis.) On rocks along the South Saskatchewan 

 River, Assa. {Macoun.) 



422. L. tessellina, Tuckerm. 



On various rocks. On boulders at Belleville, Hastings Co.,, 

 Ont., Sept., 1878 ; along the Nipigon River, Lake Superior, 

 July, 1884. {Macoun.) 



423. L. aiiriculata, Th. Fr. 



Granitic rocks, Greenland. {Vahl.) Arctic America. (Fries.) 

 Labrador or Newfoundland. {Waghorne ?ide Eckfeldt.) 



424. L. polycarpa, Fr. 



On alpine and arctic rocks. 



Labrador. {Krempelhuber.) Arctic America. {Stizenberger.) 

 Labrador or Newfoundland. {Waghortte ?ide Eckfeldt.) On rocks, 

 Deer Park, Columbia River, B.C., June, 1890. (Macoun.) 



425. L. variegata, Fr. 



On rocks, Labrador or Newfoundland. (Waghome fide Eck- 

 feldt.) 



426. L. panoeola, Ach. 



On granitic rocks, Greenland. (Vahl.) On rocks, Labrador or 

 Newfoundland. (Waghorne fide Eckfeldt.") 



