CATALOGUE OF CANADIAN PLANTS. l6Q 



45. ARTH01SIIA,Ach. 



525. A. patellulata, NYL. 



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

 feldt.) On aspen poplar trees, Moose Mountain, Man., Julyjrd, 

 1880. (Macoun.} 



526. A. astroidea, ACH. 



On bark of trees, common. 



Bay of Exploits, Newfoundland. ( Waghorne.) Abundant on 

 trees around Ottawa, Ont., and at Hull and Aylmer, Que.; quite 

 common at Belleville, Hastings Co., Ont.; on balsam fir at King's 

 Mountain, Chelsea, Que., 1897. (Macoun^) 



527. A. Swartziana, ACH. 



Frequent on bark of trees along St. Mary's River, Anticosti, 

 Que.; on trees at Cove Head, Prince Edward Island, 1888 ; 

 at Shannonville, Hastings Co., Ont.; on balsam fir, Lake 

 Winnipegosis, Man.; on ash and maple trees at Leamy's Lake, 

 Hull, Que., 1897. (Macoun.) 



528. A. medilla, NYL. 



On dead wood, Greenland. (Vahl.) 



529. A. spectabilis, PLOT. 



Quite common on old thick bark of various trees. 



Bay of Exploits, Newfoundland. (Waghorne.) On maple trees 

 at Ottawa, Ont.; on bitter-nut hickory at Hull and on basswood 

 at Aylmer, Que.; on basswood at Carleton Place, Ont.; on ash 

 trees, Central Ontario Junction and basswood and other trees at 

 Belleville, Hastings Co., Ont.; on maple trees, Port Colborne and 

 Canfield Junction, southwestern Ontario. (Macoun^ 



530. A. radiata, (PERS.) TH. FR. 



On bark at Hastings, Burrard Inlet, B. C., 1887 5 on Alnusrubra 

 at Comox, Vancouver Island, June 23rd, 1893. (Macoun'.) 



531 A. lecideella, NYL. 



Chiefly on the bark of young Pinus Strobus at Ottawa, Ont.; on 

 Acer spicatum at Aylmer, Que.; on pine, ash and basswood at 



