Contributions to Canadian Botany. 209 



(21.) P. Austins, Greene. 



South Kootanie Pass, Eocky Mts., 1883. {Br. G. M. 

 Dawson.) Near the glacier at the head of Lake Louise, 

 Eocky Mts. Alt. 7,500 ft. {John Macoun.) Dr. Dawson's 

 specimens were collected a year before Mrs. Austin's, and 

 were named P. tenue, Michx., var. latifolium, Eng., by Prof. 

 Macoun. 



(22.) P. spergulari^forme, Meisn. 



P. coarctatum, Dougl. 



From the Columbia Eiver at Sproat, B.C., to Vancouver 

 Island. 



(23). P. minimum, Wats. 



South Kootanie Pass, Eocky Mts. (Dr. G. M. Dawson.) 

 Eoger's Pass, Selkirk Mts., B.C.; Griffin's Lake, B.C. 

 {John Macoun. ) 



(24.) P. INTERMEDIUM, Nutt. 



Summit of Mt. Mark, Vancouver Island. {John Macoun.) 



(25.) P. IMBRICATUM, Nutt. 



Hand Hills and Cypress Hills, Alberta. {John Macoun.) 



(26.) P. Convolvulus, L. 



Common in fields and waste places from the Atlantic to 

 the Pacific. 



(21.) P. scandens, L. 

 P. dumetorum, L., var. scandens, Gray. 

 From Nova Scotia to the Cypress Hills, Alberta. 



(28.) P. cilinode, Michx. 



In pine woods and thickets from Nova Scotia to the Peace 

 Eiver, Athabasca. 



(29.) P. SAGITTATUM, L. 



From Prince Edward Island to the Saskatchewan. 



(30.) P. ARIFOLIUM. 

 From Nova Scotia to Ontario. 



