44 GEOLOGICAL SURVEY OF CANADA. 



174. P. rivularis, (Nees) Trevis. 



P. platyphlloidea, Pearson's List, No. 20. 



On wet rocks, Moose Mountain, Elbow River, alt. 6,000 feet, 

 Rocky Mountains, July, 1897 ; on rocks, Selkirk Mountains, and 

 in Roger's Pass, B.C., 1890 ; on trees along the Eraser River, near 

 Mission, B.C. ; on rocks at Yale, Eraser River, B.C., 1872 ; on 

 damp rocks. Eagle Pass, and on rocks at Revelstoke, and Robson, 

 Columbia River, B.C.; on stones in the Colquitz River and on 

 young firs near Victoria, Vancouver Island. {Macou?i.) Sitka, 

 andYakutat Bay, Alaska. {Evans.) 



175. p. Roellii, Steph., Bot. Centralb. 45, 1891. 



On rocks. Pass Creek, Robson, B.C., June, 1890 ; on 

 damp rocks in a ravine at Craigflower, near Victoria, and on 

 rocks near the waterworks, Victoria, Vancouver Island, May 30th, 

 1893 ; on rocks on the summit of Mount Benson, near Nanaimo, 

 Vancouver Island, June 8th, 1887 ; on rocks. Salt Spring Island, 

 and at Nanaimo River, Vancouver Island, May, 1887; on rocks 

 above Yale, B.C., May 17th, 1875. The latter specimen was re- 

 ferred to P. laevigata by Pearson, but after reading Dr. Howe's 

 remarks in his work on the Hepatics of California we place it 

 under this species. {Macoun.) On wet cliffs, Chilliwack River, 

 B.C., 1901. (/. M. Macoun.) 



176. P. pinnata, Linn. 



On stones in Trent River, below Heely Falls, Northumberland 

 Co., Ont.; on stones in a creek, Mr. Roy's farm, near Owen Sound, 

 Ont.; on stones in brooks, Kakabeka Falls, west of Eort William, 

 Lake Superior ; on stores in Bonnech^re River, Golden Lake, 

 Renfrew Co., Ont.; on the bases of trees subject to flood, shore 

 of Lake Duchesne, above Britannia, near Ottawa, Ont., Oct. 27th, 

 1900. (Macou?i.) 



50. LEJEUNEA, Libert. 



177. L. cavifolia, (Ehrh.) Lindb. 



Miquelon Island, Gulf of St. Lawrence. {Deldmare.) On 

 cedar trees, Ste Anne des Monts River, Gaspe Co., Que.; 



