192 The Ottawa Naturalist. [December 



plant has its own habitat, quite apart from that of the other, and 

 flowers two weeks earlier. 



While the above, and two other closely allied species, all sent 

 from Ottawa by Mr. Macoun in 1899, weie flowering- in my gar- 

 den in May, 1900, I took the following notes as to their respective 

 floral structures; and those notes may well bp given here. 



V. Labradorica, Schrank. In this the flowers are distinctly 

 smaller than in V. Icucopetala. Only two of the petals are bearded, 

 and these with a small tuft of straight slender somewhat flattened 

 hairs ; the odd petal is here not only smaller than the others but 

 also acutish rather than truncate or retuse ; the style is papillose 

 on the back and sides only. 



V. subvestita, Greene. Distinguished from both the fore- 

 going by its bractlets, these being linear, appendaged at base 

 (laterally) with 2 or 3 gland-tipped awn-like processes, and notably 

 auriculate at the very base, the whole bractlet only its own length 

 below the flower : sepals faintly i-nerved, strongly auricled, the 

 auricles dentate : petals deep-violet, three ot them bearded with 

 slightly flattened hairs : style short, sparsely muriculate all 

 around. 



Doubtless these notes may serve as a hint to others to 

 examine carefully in fresh specimens the particulars of floral 

 structure in other violets of this group. Only thus may we hope 

 to ultimately establish firmly the limits of the species. 



Washington, D.C., Nov. ist, 1901. 



Note. — The three species referred to above maybe found at 

 Ottawa, within half a mile of one another. V. Muhlenbergii is 

 common everywhere about Ottawa, but by entering Rockliffe Park 

 at Governor's Bay it will be found near the Electric Railway line, 

 and by then walking to the river bank just east of Governor's Bay 

 V. Labradorica will be found in abundance. V. leucopefala grows 

 along the road connecting Buena Vista road with the eastern 

 approach to St. Patrick's bridge. 



J. M. M. 



