CATALOGUE OF CANADIAN PLANTS. 165 



496. B. Oederi, (Ach.) Br. & Rostr. 



Alpine and arctic rocks. Greenland. {Vahl.) 

 49'7. B. geographica, Linn.) Tuckerm. 



On rocks in alpine and arctic regions. 



Greenland. {Arct. Man.) Arctic America. {Richardson.) Labra- 

 dor or Newfoundland. {Waghorne ?idQ Eckfeldt.) Newfoundland. 

 {Pylaie.) On rocks, Tadousac, Que. {A. T. Drummotid.) On 

 sandstone ridges, Wood Mountain, Assa., June, 1895 ; on rocks in 

 the Crow's Nest Pass, Aug. 20, 1897 ; quite common on all the 

 higher Rocky Mountains. (Macoun.) Aliaska Peninsula, Alaska. 

 {Rothrock.) 



Var. lefianorina, Flcekke. 



On rocks, Island of Grand Manan, New Brunswick. (Willey.) 



498. B. alpicola, (Wahl.) Anz. 



On alpine and arctic rocks. Arctic America. (Th. Fries.) 



499. B scabrosa. (Ach.) Koerb. 



On Bczomyces in alpine and arctic regions. 



Greenland. {Vahl.) Labrador or Newfoundland. ( Waghcrne 

 fide Eckfeldt) 



500. B. Parmeliarum, (Sommerf.) Tuckerm. 

 Upon the thallus of species of Parmelia and Cetraria. 



On Cetraria Fahlunensis, Islands of Behring Strait. {Wright.) On 

 Parmelia olivacea. Leading Tickle, Newfoundland. iWaghorne.) 



501. B. saxatilis, (Sch^r.) Koerb. 



Labrador or Newfoundland. {Waghorne fide Eckfeldt^ 



502. B. urceolata, Th. Fr.* 



Upon the thallus of various lichens. Greenland. {Vahl.) 



503. B. parasitula, Nyl. 



Found on Pilophorus cereolus, var. robustus, on the islands in 

 Behring Strait. {Wright) 



504. B. glaucomaria, (Nyl.) Tuckerm. 



On the thallus of Lecanora glaucoma, Greenland. {Stitzenberger. 



