GENUS i. 



VIOLET FAMILY. 



549 



6. Viola latiuscula Greene. Broad-leaved 

 Wood Violet. Fig. 2928. 



Viola latiuscula Greene, Pittonia 5 : 93. 1902. 



Glabrous except for more or less puberulence or 

 granular roughness on the edges of the petiole near the 

 blade; when in petaliferous flower 2%'-$' high, the 

 blades broadly ovate-deltoid, cordate, about i' wide, the 

 earliest obtuse and tinged beneath with purple; mature 

 leaves often 8'-i2' high, the blades ii'-4' wide, some- 

 times much dilated and abruptly pointed; flowers large, 

 deep violet, the spurred petal villous at base; outer 

 sepals lanceolate, glabrous, with short rounded auricles; 

 cleistogamous flowers on short, horizontal peduncles, 

 their capsules ellipsoid, flecked with purple, 4"-6" long, 

 the persistent sepals one-third as long; seeds brown. 



Dry open woods in sand or gravel, western Vermont to 

 New Jersey and northwestern Pennsylvania. May-June. 



7. Viola missouriensis Greene. Missouri Violet. 

 Fig. 2929. 



Viola missouriensis Greene, Pittonia 4: 141. 1900. 



Glabrous, cespitose, the stout ascending rootstock 

 often branching; leaves at vernal flowering 3'-6' high, 

 the blades ovate-deltoid, cordate at base, often with 

 concave upper margins; mature leaves 6'-i2 r high, the 

 blades 2^-4 wide, as long as broad, acuminate, rather 

 coarsely crenate-serrate ; corolla pale violet with a 

 darker band above the white center, spurred petal gla- 

 brous ; sepals lanceolate or ovate-oblong and obtuse, 

 narrowly white-margined, slightly ciliolate ; capsules 

 from apetalous flowers broadly ellipsoid, finely dotted 

 with brown, $"-6" long; seeds bright buff, nearly i" 

 long. 



River bottoms and low woods, Missouri and Oklahoma, 

 south to Louisiana and Texas. April-May. 



8. Viola sororia Willd. Woolly Blue Violet. 

 Fig. 2930. 



Viola sororia Willd. Enum. 263. 1809. 



Viola cuspidata Greene, Pittonia 3: 314. 1898. 



Rootstock stout, often branching; petioles and 

 under surface of young leaves, and often the scapes, 

 villous-pubescent ; the blades ovate to orbicular or 

 even reniform, with an obtuse short point, cordate, 

 crenate-serrate, sometimes 4' wide when mature ; 

 corolla violet to lavender, and occasionally white; 

 outer sepals ovate-oblong, commonly obtuse, all finely 

 ciliate below the middle and on the short rounded 

 auricles ; cleistogamous flowers ovoid on short hori- 

 zontal peduncles, usually underground, but length- 

 ened and erect when the capsules ripen ; capsules 

 usually mottled with brown; seeds dark brown, i" 

 long. 



Moist meadows, shady ledges and dooryards, western 

 Quebec and New England to Minnesota, south to North 

 Carolina and Oklahoma. April-May. 



