1886. | BOTANICAL GAZETTE. 255 
VY. palustris L. In this country only alpine or subalpine, 
Labrador to Saskatchewan and Rocky Mountains, south to those 
of Colorado, and the higher parts of those of New England. 
ae Corolla white, mostly with brown-purple lines on lower or also 
on lateral petals or a blotch, these bearded or beardless in the same species; spur 
short and saccate: stigma as if truncate and margined, antrorsely short-pointed. 
The three species run together. 
V. blanda Willd. Geographical range fully as large as that 
of V. palmata. To this I refer two forms, which in their ex- 
tremes would seem specifically distinct, viz. : 
Var. palustriformis. Comparatively large, growing in shady 
or mossy and loose soil or leaf-mould, where it is freely and ex- 
tensively stoloniferous: upper face of the leaves commonly hir- 
sutulous in the way of V. Selkirkii, but less so: scapes often red- 
dish: flowers rather larger ; lower petal less lineate or picturate. 
This is V. obliqua Pursh (not Hill nor Ait.), and may also be his 
and is the V. amena of Le Conte). It ranges from Canada to 
Delaware, and to the mountains of Utah, but passes freely into 
the ordinary type. In the dried specimens it so much resembles 
sachusetts and central New York. 
V. primulifolia L., including V. acuta Bigelow, in its various 
forms, as is well known, fills up the interval between V. blanda 
and V. lanceolata. It is an Atlantic coast species, except as to 
Var. occidentalis. A form with ovate- or spatulate-oblong 
leaves, all tapering at base, coll. by T. Howell, much out of the 
ordinary range, at Waldo, 8. Oregon, along streamlets. 
V. lanceolata L. has a rather larger range, from Nova Scotia 
to Lake Superior, Florida, and Texas. 
+ + + + Corolla yellow; lateral petals usually be 
V. rotundifolia Michx. Our only truly acaulescent yellow 
violet, well marked in its summer state by the unusually aceres- 
cent leaves lying flat on the ground. From the character and 
arded. 
