1899] Macoun — Canadian Botany. 161 



66, has explained fully the unfortunate circumstances which result- 

 ed in the publication of this plant as V. ciispjdaia in my " Notes 

 on Some Ottawa Violets," in the Ottawa Naturalist for January, 

 1899. I at that time hesitated to publish even six new violets 

 from the cucullata agg'regate, and though aware that Dr.Greene's 

 description of V. cuspidata did not answer well for our plant it 

 seemed preferable to include it in that species rather than describe 

 another species. Ample material collected this year shows that 

 we have in the vicinity of Ottawa at least four additional species 

 of violets in this group, two of which have recently been described 

 by Dr. Greene and are included in this paper. 



Viola populifolia. Greene, Pittonia, vol. iii, p. 337, and Ott, 

 Nat., vol. XI I, p. 186. 



Port Flamboro, Ont. (/. M. Dickson.) 



Viola elegantula, Greene, Pittonia, vol. iv, p. 66. 



Acaulescent and low, the whole plant at the time 

 ot petaliferous flowering barely three inches high and the pe- 

 duncles far exceeding the leaves ; rounded and cordate-reniform 

 leaves pale green and slightly succulent, about ^ inch wide, short- 

 petioled and the petioles erect, the margin lightly crenate and all 

 parts wholly glabrous : peduncles obscurely angled, bibracteolate 

 abcve the middle, the bractlets subulate : sepals lance-linear, ob- 

 tusish : corolla rather more than halt an inch in length, not as 

 broad as long ; petals all similar in size and outline, oblong-obo- 

 vate, obtuse or retuse, light-blue, the lower three with conspicuous 

 violet veins on a white ground at base, the laterals bearing a low 

 and thin tuft of short strongly clavate hairs, or some of them 

 shortened to mere papillcE ; two upper petals naked, in full ex- 

 pansion deflected and concealing the calyx : style elongated : late 

 apetalous flowers small, aerial on short horizontal or recurved pe- 

 duncles. 



In depressions in sandy fields at Eastman's Springs, Ont., 

 and east of Beaver Meadow Lake, near Hull, Que., 1899. [J-M. 

 Macouii.) 



