CATALOGUE OFQCANADIAN; PLANTS, 155 



sandstone rocks, Wood Mountain, Assa., June, 1895 5 quite comr 

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

 1897. (Macoun.) 



420. L. lapicida, (Acn.) NYL. 



Closely related to L. pruinosa. 



Labrador or Newfoundland. ( Waghorne fide 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. (Agassiz.) On rocks along the South Saskatchewan 

 River, Assa. (Macoun.) 



422. L. tessellina, TUCKERM. 



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

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

 July, 1884. (Macoun.) 



423. L. auriculata, TH. FR. 



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

 Labrador or Newfoundland. (Waghorne fide Eckfeldt.) 



424. L. polycarpa, FR. 



On alpine and arctic rocks. 



Labrador. (Krempelhuber.) Arctic America. (Stisenberger^ 

 Labrador or Newfoundland. (Waghorne fide Eckfeldt.) On rocks, 

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



425. L. variegata, FR. 







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

 feldt.) 



426. L. panoeola, ACH. 



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

 Newfoundland. (Waghorne fide Eckfeldt.) 



