270 The Ottawa Naturalist. [March 



Viola petrophila,' Greene, Pittonia, vol. iv, p. 286. 



Crevices of rocks, Shawnigan Lake, Vancouver Island, 

 9 May, 1897. (/. R. Anderson.) 



Viola compacta, Greene, Pittonia, vol. iv, p. 286. 



Crevices of rocks, Shawnigan Lake, Vancouver Island. 

 Herb. No. 19,910. {/• R- Anderson.) 



Viola Andersonii, Greene, Pittonia, vol. iv, p. 287. 



Thetis Lake, B. C, 29th April, 1900. [J. R. Anderson.) 

 Viola orecallis, Greene, Pittonia, vol. iv, p. 288. 



Mill Hill, B. C, 28th April, 1900. (/. R. Anderson ) 

 Viola Albertina, Greene, Pittonia, vol. iv, p. 289. 



Described from specimens collected by W. Spreadborough 

 east of McLeod River, northern Alberta, but a common 

 species everywhere in the foot-hills of the Rocky Mountains. 



Cerastium angustatum, Greene, Pittonia, vol. iv, p. 300. 



Open prairies in the sandhills north of Prince Albert, 

 Saskatchewan, July, 1896. Herb. No. 12,459. [John 

 Macoun.) Only known station. 



Cerastium campestre, Greene, Pittonia, vol. iv, p. 301. 



The common species on the Canadian prairies. Our 

 specimens are from Stonewall, Man. {John Macoun.) Indian 

 Head, Assa. {W. Spreadborough) Cypress Hills, Assa. 

 (/. M. Macoun.) 



CerastIum vestitum, Greene, Pittonia, vol. iv, p. 302. 



Dry banks at Ste. Anne, west of Edmonton, Alberta, 

 June 9th, 1898. Herb. No. 19,285. {W. Spreadborough.) 

 A well-marked species known only from Mr. Spreadborough b 

 specimens. 



Cerastium confertum, Greene, Pittonia, vol. iv, p. 302. 



Described from specimens collected by Prof. John 

 Macoun along the old telegraph trail in Lat. 54^, British 

 Columbia, June 24th, 1875, and at Stewart Lake, Q.Q.., 

 T^ne 20th. Not since collected. 



