VIOLACE.E. 39 



11. V. kotundifolia, Mich. Round-leaved Violet. 



Leaves round-ovate, heart-shaped, slightly crcnatc, apprcssed to the ground; 

 lateral petals bearded and marked with brown line?, lower ones smaller; spur very 

 short. 



Rocky woods. May. Scape 1 to 3 inches high. Leaves 1 inch broad at flowering, 

 Increasing to 3 or A inches in summer. Flowers pale yellow, middle sized. 



** Perennials icith stems. 



5. Leaves undivided : flowers yellow or yellowish white. 



12. V. pubescans, Ait. Downy Yellow Violet. 



Softly pubescent; stem elongated, erect; leaves very broadly heart-shaped, den- 

 tate, more or less acuminate; stipules large, ovate, somewhat toothed; spur ex- 

 tremely short; lower petals veined with purple. Yar. 1., eriocarpa, is large, 

 villous pubescent : capsule densely villous. Yar. 2., scabriuscula, is smaller, slightly 

 pubescent, and brighter green ; stems decumbent ; pods smooth or woolly. 



Rich woods; common. May. Stent 6 to 12 inches high, generally solitary, some- 

 what angular. Peduncles rather shorter than the leaves, axillary, solitary, with 2 

 eubulate bracts. Flowers middle sized, yellow; lateral petals slightly bearded; and 

 with the lower ones striped with dark purple. 



13. V. HAST ATA, Mich. ILdbert-leaved Yellow Violet. 



Nearly smooth ; stem erect, simple, leafy above ; leaves on long petioles, cordate- 

 lanceolate or hastate, acuminate; lobes obtuse, dentate; stipules minute, ovate; 

 spur very short; lower petal dilated, sub-3-lobed ; lateral ones slightly bearded. 



Mountains and pine woods. May. Stem 6 to 10 inches high. Peduncles shorter 

 than the leaves. Flowers yellow. 



14. V. striata, Ait. Striped Violet. 



Stem assurgent, angular, smooth; leaves alternate, heart-shaped, finely serrate, 

 often acuminate; stipules large, oblong-lanceolate, strongly fringe-toothed; spur 

 thickish, much shorter than the petals ; stigma recurved, sub-pubescent. 



Wet grounds. May. Stem 6 to 12 inches high, half round. Leaves 1 to Vyi inches 

 wide, on petioles 1 to 2 inches long. Peduncles axillary. Flowers large, yeflowish- 

 white ; lateral petals densely bearded: lower one striped with dark purple. 



6. Flowers pale blue, or purplish. 



15. V. ROSTRATA, Mukl. Long Spurred Violet. 



Stem diffuse, erect; leaves smooth, roundish-heart-shaped, serrate; the upper 

 acute; stipules large, lanceolate, serrate-cilliate ; petals obovate, beardless; spur 

 longer than the corolla. 



Shade 1 hillsides. June. Stem 4 to 8 inches high, smooth. Flowers large, pale 

 blue, with a very long spur similar to that of the larkspur, by which this species is 

 readily recognized. 



16. V. Muhlenbergii, Toit. Spreading Violet. 



Stems ascending, at length with creeping branches, smooth; leaves round, heart- 

 shaped, or the lowest kidney-shaped, crenate : the uppermost slightly acuminate ; 

 stipules large, lanceolate, fringe-toothed : spur tapering, about half the length of the 

 petals; petals obovate, obtuse, the lateral ones bearded; stigma rostrate. 



Shaded wet places. May and June. Stem 6 to 8 inches high. Flowers middle* 

 sized, pale purplish. 



17. V. Canadensis, L. Canadian Violet. 



Upright; leaves heart-shaped, pointed, serrate, lower ones on long petioles; 

 st ipules ovate-lanceolate, entire ; sepals subulate-lanceolate : spur very short; stigmu 

 filiort, pubescent, 



