Farr on British Columbian Plants. 425 



from Labrador. The other distinction which Willdenow 

 observes of the leaves in one being nervosa, in the other 

 venosa, remarked also by Mr. Salisbury, in Smith's Flora 

 Britannica, though not unfounded, is hardly sufficiently 

 pointed for use, as tlie nerves in suecica sometimes take their 

 origin from the midrib, and the veins in Canadensis are so 

 strongly marked on the under side and so little divided, that 

 most describers would call them nerves." 



After due consideration of these various points, it seems 

 advisable to make the present form a variety of C. Canaden- 

 sis, as it resembles that species rather more than C. Suecica. 



Corallorhiza innata, R. Br. var. virescens, var. nov. — This 

 variety differs from the type in the color of the flowers, which 

 are a light yellowish-green. 



Banff, Alberta, June 14, 1904; Field, B. C, June 11, 1904. 



Senecio triangularis. Hook. — The typical form of the 

 above species is abundant at Glacier, Lake Louise, and over 

 other areas of the region now dealt with, but along the lower 

 part of the Asulkan Trail it occurs interspersed with a 

 remarkably luxuriant variety that attains a height of 4 

 feet, which bears ample leaves that are three to five times the 

 size of the typical form, but which most strikingly varies in 

 the rudimentary condition or absence of the ray flowers in 

 the capitula. The entire plant also is more hairy in char- 

 acter. 



