VIOLACE^ 91 



the base; petals violet-blue, the spurred one glabrous; peduncles taller than 

 the leaves. Wet places, common, somewhat variable, Man.-Alta. 



2. V. pedatffida, Don. Bird-foot Violet. 



Leaves palmately parted and variously cleft into narrow lobes; peduncles 

 exceeding the leaves bearing showy violet flowers; rootstook short and erect. 

 (V-delphinifoliayNuU.) Moist prairies, Man.-Alta. 



3. V. bl&nda, Willd. Sweet White Violet. 



Leaves acute, midribs and petioles tinged with red, almost glabrous; 

 flowers small, sweet-scented, white with the lower petals veined with purple. 

 Damp places, mostly northward. 



4. V. paliistris, L. 



Glabrous, from a jointed rootstock; leaves round or kidney-shaped, 

 slightly crenate; flowers small, pale blue with purple veining. Bogs, N. 

 Man. and westward. 



**Plants with stems. 

 6. V. NuttaUii, Pursh. 



Slightly, if at all, pubescent, leaves ovate to lanceolate, entire or only 

 slightly crenate, tapering into winged petioles; petals yellow, often tinged 

 with purple on the outside. Dry prairies, occurring locally, Man.-Alta. 



6. V. publscens. Ait. Downy Yellow Violet. 



Stems often solitary, softly pubescent; root leaves long-petioled, usually 

 gone before the flower appears; stem leaves 2-4, on short petioles near the 

 summit, blades ovate to reniform; petals yellow veined with purple, the 

 lateral bearded. Rich woods, Man. and E. Sask. 



7. ,V. canadSnsis, L. Canada Violet. 



Stem 4-12 in. high, minutely pubescent; leaves large, heart-shaped, 

 pointed, serrate; flowers white, lasting throughout the summer, the spurred 

 petal yellow at the base and marked with dark lines, lateral petals bearded. 

 Rich woods, common, Man.-Alta. 



8. V. arenaria, DC. , 



Stems low, growing in tufts; leaves thiokish, densely pubescent on both 

 surfaces, ovate, narrowing to an obtuse apex, and only slightly, if at all, 

 cordate at the base; flowers small, blue, with short blunt spur. ( V. canina 

 var. puberula; Wats.) Sandy soil, Man. and Sask. 



9. V. adiinca. Gray. 



Glabrous or nearly so, very short-stemmed; leaves rounded to ovate, 

 rarely cordate; flbwers large, side petals bearded; spur almost as long as 

 the petals, either curved or straight. ( V. canina, var. adunca, Wats.) 

 Dry soil, W. Sask. and Alta. 



