VOL. II.] 



EVENING-PRIMROSE FAMILY. 



491 



Kneiffia pumila (L,.) Spach. Small Sun- 

 drops. (Fig. 2591.) 



OEnothera pumila L,. Sp. PI. Ed. 2, 493. 1762. 

 OEnothera chrysantha Michx. Fl. Bor. Am. i: 225. 

 Kneiffia pumila Spach, Hist. Veg. 4: 377. 1835. 



1803. 



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, i / -2 / long, 2 // ~4 // wide, usually 

 glabrous; the basal ones broader and shorter; flowers 

 in terminal, leafy-bracted spikes, yellow, diurnal, 4"- 

 I2 // broad; calyx-tube shorter than the ovary, the lobes 

 linear-lanceolate, reflexed; petals obcordate; capsule 

 sessile or short-stalked, glabrous, club-shaped, $"-(>" 

 long, the body obovoid, somewhat wing-angled. 



In dry soil, Nova Scotia to Manitoba, south to New 

 Jersey, Georgia and Kansas. Ascends to 2200 ft. in Virginia. 

 June-Aug. 



6. Kneiffia fruticosa (L/. ) Raimann. 

 Common Sundrops. (Fig. 2592.) 



OEnothera fruticosa L. Sp. PI. 346. 1753. 

 Kneiffia fruticosa Raimann, in Engl. & Prantl, 

 Nat. Pfl. Fam. 3: Abt. 7, 214. 1893. 



Erect, usually branched, i-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, \'-A,' long; flowers 

 yellow, diurnal, i / -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. 



1894. 



Kneiffia fruticosa pilosella (Raf.) Britton, Mem. Torr. Club, 5: 234. 

 OEnothera pilosella Raf. Ann. Nat. 15. 1820. 



Pubescent with long spreading hairs throughout. New York to Illinois, south to Georgia, 

 cends to 4200 ft. in North Carolina. 



7. Kneiffia glauca (Michx.) Spach. Glau- 

 cous Sundrops. (Fig. 2593.) 



OEnothera glauca Michx. Fl. Bor. Am. i: 224. 1803. 

 Kneiffia glauca Spach, Hist. Veg. 4: 374. 1835. 



Erect, glabrous and glaucous, i^-3 high. Leaves 

 sessile or the lower petioled, ovate or oval, repand- 

 denticulate, 2 / -5 / long, 5"-i5" wide, acute or acutish 

 at the apex, narrowed or rounded at the base; flowers 

 bright yellow, diurnal, i>^ / -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. 



As- 



