256 Violaceae 
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D. Leaves short-pubescent, ternately divided into 3 segmented lobes. U. (V. 
douglasii. ) V. chrysantha Hook. 
DD. Leaves glabrous, pinnately divided into 5 or more segmented lobes. U. 
ey V. sheltoni Torr. 
CC. Lateral petals bearded with a tuft of hairs; upper petals deep blue or violet- 
purple. 
E. Plant pubescent; leaves rounded in general outline, and their segments 
linear or linear-spatulate. C. E. 
V. beckwithii T. & G. 
EE. Plant glabrous; leaves either not rounded in general outline, or else 
their lobes lanceolate or ovate-lanceolate. 
F. Leaf-segments veinless or obscurely veined; stipules adnate, often large, 
laciniate or entire. W. 
V. hallii Gray 
FF. Leaf-segments prominently 3-veined; stipules free, small, entire. E. 
V. trinervata How. 
AA. Leaves very shallowy lobed or merely toothed or even entire. 
G. Petals yellow. 
H. Stems prostrate, stolon-like; leaves evergreen. 
I. - Leaves cordate; leafy branches producing petal-bearing flowers. W. C. E. 
(V. sarmentosa.) V. sempervirens Gr. (Evergreen Violet) 
II. Leaves reniform; leafy branches producing only apetalous flowers. C. E. 
V. orbiculata Gray 
HH. Stems erect, not stolon-like; leaves not evergreen. 
J. Plant glabrous. 
K. Leaves ovate or ovate-lanceolate, acute or obtuse; capsule globose, pubes- 
cent. W.C. E. (V. purpurea.) 
V. venosa Pip. 
= 
KK. Leaves round-cordate or reniform, acuminate or acute; capsule oblong, 
glabrous. W. C. E. 
V. glabella Nutt. 
JJ. Plant pubescent. W.C. E. (V. broobsii; V. praemorsa; V. nuttallii 
praemorsa; V. nuttallii major; V. flavovirens; V. ling aefolia. ) 
V. nuttallii Pursh (Hairy Yéllow Violet) 
GG. Petals some other color. 
L. Plants stemless. 
M. © Plant hirsute or villous, not stoloniferous; petals 10-17 mm. long, blue 
or violet; all bearded at base. E. 
V. cuspidata Gr. 
MM. Plant glabrous or very nearly so. 
N. Leaves ovate to spatulate-oblong, attenuate to the petiole; plant stoloni- 
ferous. U. (V. occidentalis.) 
V. primulaefolia L. (Primrose Violet) 
NN. Leaves truncate to cordate at base, not attenuate to the petiole. 
O. Petals 6—8 mm. long, white or light-blue or violet, lower ones with 
purple veins; plants stoloniferous. 
P. Corolla white; lower 3 petals with purple lines. W. C. E.. = (ia 
macloskevi. ) V. blanda Willd. 
PP. Corolla violet. W. C. E. 
Ve palustris L.- (Marsh Violet) 
OO. Petals 10—25 mm. long, violet. 

