42 GEOLOGICAL SURVEY OF CANADA. 



166. S. brevicaulis, TAYL. 



North America. (Drummond in herb. Hook.) 



167. S. glaucocephala, (TAYL.) AUST. 





On dead wood, Gaspe coast, and slopes of Mount Albert, alt. 

 4,000 feet, Gaspe Co., Que. ; on elm and other logs at Ottawa, 

 Ont. ; on old logs at Belleville, Hastings Co., Ont. ; on old logs, 

 very rare, near Wooler, Northumberland Co., Ont., July 20th, 

 1865 ; on old logs, Manitoba House, Lake Manitoba, Man. ; on 

 old logs west of Eraser River at Quesnel, B.C., 1875. (Macoun.) 



168. S. compacta, (Roxn) DUMORT. 

 Greenland. ( Currie & Brentel. ) 



48. RADULA, Dumort. 



169. R. complanata, (LINN.) DUMORT. 



Miquelon Island, Gulf of St. Lawrence. (Delaware.) On the 

 bases of trees, Jupiter River, Anticosti ; on the bases of trees, Ste. 

 Anne des Monts River, Gaspe Co., Que.; on rocks and trees at 

 Ottawa, Ont.; on the roots of trees and on stones at Belleville, 

 Hastings Co., Ont.; on rocks and trees, Queenston Heights, Ont., 

 1901 ; on rocks, Lake Nipigon, Ont.; abundant on the bases of 

 trees in Algonquin Park, Ont., July, 1900 ; on trees, Red 

 Deer River, Porcupine Mountains, Man.; on bases of trees and 

 alders at Revelstoke, B.C.; on rocks, New Westminster, B.C.; on 

 trees, Sea's farm, Victoria, Vancouver Island ; on rocks and 

 trees, Mount Benson, Nanaimo, Vancouver Island ; on rocks and 

 the bases of trees, Cape Breton Island, N.S., July, 1898 ; on the 

 bases of trees, Roger's Pass, Selkirk Mountains, B.C., July 3Oth, 

 1890. (Macoun.) Sitka, Unalaska Island and Yakutat Bay, Alaska. 

 (Evans.) 



Radula Krausei, Steph., from Chilcoot, Alaska, is doubtfully 

 referred here by Dr. Howe. 



1VO. R. Bolanderi, GOTTSCHE. 



On rotten wood, Alert Bay, Vancouver Island, 1885. (Dr. G. 

 M. Dawson.) On Acer circinatum at Hastings, Burrard Inlet, B.C.; 



