Vou. II.] EVENING-PRIMROSE FAMILY. 491 
5. Kneiffia pumila (L.) Spach. Small Sun- 
drops. (Fig. 2591.) 
OEnothera pumila 1. Sp. Pl. Ed. 2, 493. 1762. 
OEnothera chrysantha Michx. Fl. Bor. Am. 1: 225. 1803. 
neifia pumila Spach, Hist. Veg. 4: 377. 1835. 
Erect, branched or simple, finely puberulent, 8/—2° 
high. Leaves oblanceolate or oblong, obtuse or obtus- 
ish at the apex, narrowed at the base and often petioled, 
entire or very nearly so, 1/-2/ long, 2’’-4’’ wide, usually 
glabrous; the basal ones broader and shorter; flowers 
in terminal, leafy-bracted spikes, yellow, diurnal, 4//— 
12’’ broad; calyx-tube shorter than the ovary, the lobes 
linear-lanceolate, reflexed; petals obcordate; capsule 
sessile or short-stalked, glabrous, club-shaped, 3//-6/’’ 
long, the body obovoid, somewhat wing-angled. 
In dry soil, Nova Scotia to Manitoba, south to New 
Jersey, Georgiaand Kansas. Ascends to 2200 ft. in Virginia. 
June-Aug. 
6. Kneiffia fruticosa (L.) Raimann. 
Common Sundrops. (Fig. 2592.) 
OEFnothera fruticosa I,. Sp. Pl. 346. 1753. 
Kneifia fruticosa Raimann, in Engl. & Prantl, 
Nat. Pfl. Fam. 3: Abt. 7, 214. 1893. 
Erect, usually branched, 1°-3° high, pubescent 
with short hairs, rarely glabrous. Leaves lanceo- 
late, ovate-lanceolate or oval-lanceolate, acute 
or obtusish at the apex, narrowed and sessile at 
the base or the lowest petioled, repand-denticu- 
late, or rarely nearly entire, 1/-4’ long; flowers 
yellow, diurnal, 1/-2’ broad, in terminal, leafy- 
bracted spikes; calyx-segments lanceolate, 
spreading, the tube mostly longer than the 
ovary; petals obcordate; capsule sessile or short- 
stalked, oblong, prominently winged, glabrous 
or pubescent, 3’’-4’’ long. 
In dry soil, Nova Scotia, New England to Geor- 
gia, west to Minnesota and Louisiana. June-Aug. 
Kneiffia fruticosa pilosélla (Raf.) Britton, Mem. Torr. Club, 5: 234. 1894. 
OEnothera pilosella Raf. Ann. Nat. 15. 1820. 
Pubescent with long spreading hairs throughout. New York to Illinois, south to Georgia. As- 
cends to 4200 ft. in North Carolina. 
7. Kneiffia glauca (Michx.) Spach. Glau- 
cous Sundrops. (Fig. 2593.) 
OEnothera glauca Michx. Fl. Bor. Am. 1: 224. 1803. 
Kneiffia glauca Spach, Hist. Veg. 4: 374. 1835. 
Erect, glabrous and glaucous, 114°-3° high. Leaves 
sessile or the lower petioled, ovate or oval, repand- 
denticulate, 2’-5’ long, 5’’-15’’ wide, acute or acutish 
at the apex, narrowed or rounded at the base; flowers 
bright yellow, diurnal, 1%/—3’ broad, very showy in 
short, leafy corymbs; petals broadly obovate, emargin- 
ate; calyx-lobes ovate-lanceolate, acuminate, spread- 
ing, its tube very slender and 5-8 times as long as the 
ovary; capsule oblong, broadly 4-winged, glabrous, 
5’’-6’’ long, borne on a short stalk. 
In dry woods, mountains of Virginia to Georgia and 
Alabama. Also, according to B. B. Smyth, in Kansas. 
May-Sept. 
