CANADIAN VIOLETS. 337 
V. AFFINIS, Le Conte, Ann. N. Y. Lyc. ii. 138. This fine 
species, common enough in most woodlands of the District 
of Columbia and adjacent Maryland, was identified by me 
to my own satisfaction by Le Conte's excellent description, 
nearly two years since, and long anterior to my obtaining 
possession of that priceless ionological treasure, the volume 
of that author's unpublished colored drawings of his violets. 
The drawing and coloring are perfect; and the species will 
of necessity be admitted on all hands as valid. I mention 
V. affinis here for the reason that Mr. James Macoun finds 
it in Canada, at Billing's Bridge, Ontario. He sends it to 
me under number 18,771. He has not identified it, but 
remarks that it seems an ally of V. venustula; which is per- 
fectly correct. The two are much alike in the possession of 
a leaf that is broadly and beautifully cordate at base, with- 
out evidence, in the dry, of being at all eucullate, the apex 
being in both very notably acute—almost acuminate. 
V. POPULIFOLIA. An acaulescent blue-flowered woodland 
violet akin to V. cuspidata, but smaller, the petioles of the 
early leaves densely villous-hirsute, the blade from broad- 
cordate in the very earliest and smallest, to deltoid or del- 
toid-reniform in those accompanying the petaliferous flowers, 
notably broader than long, both surfaces, but more con- 
spicuously the lower, hirsute-pubescent, especially along the 
veins: corollas large, rather light blue, all the petals broad 
and obtuse, the odd one like the others but a little longer; 
sepals of the petaliferous flowers oblong, obtuse, hispidulous 
below, especially the auricles: apetalous flowers of summer 
and autumn very short-peduncled and horizontal or partly 
buried, but the peduncles slender; sepals small, glabrous; 
pods triquetrous-ovoid, finely dotted, 4 or 5 lines long: late 
foliage nearly glabrous, but rather fleshy. 
From woods near Port Flamboro, Ontario, coilected by 
Mr. J. M. Dickson, from whom I have herbarium speci- 
mens, and also living plants now flourishing in the garden. 
45 
