VIOLACEAE. 



VOL. II. 



27. Viola incognita Brainerd. Large- 

 leaved White Violet. Fig. 2949. 



Viola incognita Brainerd, Rhodora 7 : 84. 1905. 



Rootstock slender, in older plants enlarging 

 upward; peduncles, petioles and lower surface 

 of leaves pubescent with soft white hairs, es- 

 pecially when young, the upper leaf-surface 

 glabrous; blades at petaliferous flowering or- 

 bicular or reniform, J'-ii' wide, the apex 

 abruptly short-pointed; aestival leaves with 

 large, rugose blades, broadly ovate, cordate 

 usually with open sinus, mostly acute, 2^-3' 

 wide; scapes hardly taller than the leaves; 

 petals white, the lateral bearded, the upper 

 pair obovate, flowering early; seeds narrowly 

 obovoid, obtuse at base, smooth, brown, i" 

 long; plant in summer producing numerous 

 filiform runners. 



Mountains and low moist woodlands, New- 

 foundland to Dakota, south to the mountains of 

 eastern Tennessee. Var. Forbesii Brainerd is 

 nearly or quite glabrous, except often for minute 

 scattered hairs on the upper leaf-surface. April- 

 May. 



28. Viola blanda Willd. Sweet White 

 Violet. Fig. 2950. 



Viola blanda Willd. Hort. Berol. pi. 24. 1806. 



V. amoena Le Conte, Ann. Lye. N. Y. 2 : 144. 1826. 



Viola blanda var. palustriformis A. Gray, Bot. Gaz. 



ii : 255. 1886. 



Petioles and scapes glabrous, usually tinged 

 with red, the scapes much exceeding the leaves ; 

 blades ovate, cordate with narrow sinus, com- 

 monly acute, often somewhat acuminate, rarely 

 over 2i' wide when mature, glabrous except for 

 minute scattered hairs on the upper surface; lat- 

 eral petals beardless, the upper pair often long, 

 narrow, and strongly reflexed, sometimes twisted ; 

 cleistogamous capsules ovoid, dark purple; seeds 

 dark brown, minutely rugose, acute at base, f" 

 long; plant freely producing in summer slender 

 leafy runners. 



Cool ravines and moist shady slopes in humus, 

 western Quebec and western New England to Minne- 

 sota, south in the mountains to northern Georgia. 

 In petaliferous flower 10-14 days later than either 

 of the two preceding species. April-May. 



29. Viola pallens (Banks) Brainerd. 

 Northern White Violet. Fig. 2951. 



V. rotundifolia var. pallens Banks ; DC. Prodr. 



i : 295. 1824. 



Viola blanda recent authors. Not Willd. 

 Viola pallens Brainerd, Rhodora 7 : 247. 1905. 



Petioles and scapes in summer often 

 dotted with red and more or less hirsutu- 

 lous ; blades glabrous on both sides, broadly 

 ovate or orbicular, cordate, i'-2i' wide, 

 crenate-serrate, obtuse or rounded at apex; 

 flowers faintly fragrant, lateral petals usu- 

 ally bearing a small tuft of hairs, upper 

 petals broadly obovate ; capsules green, 

 ellipsoid-cylindric ; seeds \" long, almost 

 black ; stolons slender, often bearing small 

 leaves and cleistogamous flowers. 



Springy land and along cold brooks, Labra- 

 dor to Alberta, south to the mountains of 

 South Carolina and Tennessee, and in the 

 Rocky Mountains to Colorado. American 

 sweet violet. Long mistaken for V. blanda 

 Willd., and figured for that species in the first 

 edition of this work. April-May. 



