VIOLACEAE. 



VOL. II. 



34. Viola Nuttallii Pursh. Nut- 

 tail's Violet. Fig. 2956. 



V. Nuttallii Pursh, Fl. Am. Sept. 174. 1814. 



Somewhat pubescent, or nearly gla- 

 brous; rootstock stout, deep-seated; 

 leaves and petaliferous flowers in spring 

 borne from near the base of short 

 stems ; these in summer much length- 

 ened, erect or ascending, bearing cleis- 

 togamous flowers on axillary peduncles; 

 blades of the leaves lanceolate or ovate- 

 lanceolate, thickish, i'-3' long, obscurel> 

 crenate-dentate or entire, tapering into 

 margined petioles, 2'-6' long; sepals 

 lanceolate or linear, attenuate, 3"-4" 

 long; petals yellow, 4"~74" long, slightly 

 bearded or beardless; capsule subglo- 

 bose or ellipsoid, about 3" long. 



On prairies and plains, Manitoba to Mon- 

 tana, south to Kansas and Arizona. Yellow 

 prairie-violet. May. 



33. Viola odorata L. English, March, or 

 Sweet Violet. Fig. 2955. 



Viola odorata L. Sp. PI. 934. 1753. 



Producing above ground leafy stolons rooting 

 freely at the nodes and bearing numerous cleis- 

 togamous flowers in summer; petioles 2'-$' long; 

 blades broadly ovate or orbicular, rounded or 

 obtuse at the apex, cordate, crenate, i'-2 r wide, 

 finely pubescent; flowers on scapes as long as the 

 leaves or shorter; very fragrant, violet or white, 

 lateral petals usually bearded ; style hook-shaped ; 

 sepals oblong, mostly obtuse ; cleistogamoirs flow- 

 ers on slender recurving peduncles, broadly ovoid, 

 angled, pubescent, purple; seeds large, cream- 

 colored. 



Native of Europe, often cultivated and occasion- 

 ally adventive, as are some of its hybrids with allied 

 European species. March-May. Viola chinensis L. 

 (Viola lancifolia Pollard, not Thore), an Asiatic 

 species, is spontaneous in botanical gardens at 

 Washington, D. C., and elsewhere. 



35. Viola hastata Michx. Halberd- or 



Spear-leaved Yellow Violet. 



Fig. 2957. 



Viola hastata Michx. Fl. Bor. Am. 2: 149. 1803. 



Slightly puberulent ; stem slender, 4'-io' high, 

 from a long white brittle horizontal root- 

 stock ; stem-leaves 2-4, near the summit, hal- 

 berd-shaped with rounded basal lobes, nar- 

 rowly lanceolate above ; or sometimes ovate- 

 lanceolate and subcordate ; radical leaves occa- 

 sional, oblong-lanceolate, usually wider and 

 more deeply cordate ; all distantly serrulate ; 

 corolla yellow, the upper petals often tinged 

 outside with violet ; sepals linear-lanceolate, 

 acute; capsules ovoid, glabrous, 4"~5 ' long; 

 stipules ovate, small, often with a few bristly 

 teeth. 



In mountain forests or hilly districts, Pennsyl- 

 vania to Ohio, south to Liberty County, Florida. 

 April-May. 



