VIOLACE^. 



61 



linear lanceolate ; sometimes trianp;ular. oblong lieart-sliaped, arrow-shaped, 

 or hal'herd-sliaped ; sparinglv toothed or cut-toothe.i at the l.ase ; 4 to 10 inches 

 high. Flower deep blue ; petals obovate, bearded, and emarginate ; spur short 

 and thick ; sepals lanceolate, acute. April to July. 



Var. ovata. Leaves oblong-ovate, crenate, frequently repand toothed near 

 the base; pubescent; stipules ciliate ; flowers large and dark. (Irowing in dry, 

 open woods ; sandy soil. 2 to 4 inches high. April, May. ( V. ovata, Nutt.) 



Geogmphij. — Yownd throughout eastern North America from Canada to 

 Florida, and west to the Mississipi)i valley. Dry or moist open grounds. 



IG V. Selkirkii, Fursh, fioldie. {Great-spurred Violet.) Leaves numerous, 

 orbicular, lieart-sl'iai)ed, slightlv liairy on the upper side, crenately toothed ; 

 sinus deep, sometimes broad, at other times nearly closed. Fvoot-stock fibrous 

 rooted. Flowers small, pale blue ; spur very large ; petals beardless, upper 

 oue marked with blue lines. Plant about 2 inches high. May. 



Geography. — Yomid in Canada, Mass., and N. Y. Chautauqua Co. (Judge 

 Clinton), Lake Superior (Robbins), rare. 



Viola tricolor (Pansy). 



17. V. Striata, Ait. (Pale Violet. Striped Violet.) Stem a.«<surgcnt, angular, 

 or half-round, smooth, 6 to 12 inches high. Leaves alternate, heart-shaped, 

 frequently acuminate, crenate, serrate ; petioles I to 2 inches long ; stipules 

 large, oblong-lanceolate, strongly fringe-toothed. Flowers large, yellowish- 

 white ; side petals densely bearded; lower one striped with dark purple; spur 

 thickish, shorter than the petals ; stigma recurved. May. 



Geography. — Eastern North America, from Canada, soutli and west. Low 

 grounds. Found sparingly throughout these linuts. 



18. V. tricolor, L. (Pansy. Heartsease.) Stem angular, uuich branched, G 

 to 20 inches higli, leafy Leaves oblong-ovate, lower leaves cordate, remotely 

 toothed, or sub-crenate ; stipules ])innatifid or lyrate, end lobes as long as the 

 leaves. Flowers variable in size; two upper petals purple; side ones white; 

 the lower one striate at base ; all yellow at base. Spur short and thick. April 

 to September. 



Escaped from gardens, sparingly naturalized in fields near old dwellings. 



Var. arvensis, DC. (V. tenella, Muhl.). (V. tricolor, L.). Flowers a little 

 smaller, petals only as long aa sepals. The whole plant usually smaller. 



