138 ONAGRACE,£. (EVENING-PRIMROSE FAMILY.) 



6-8. Style declined : stigma 4-lobed. Ovary 3-4-celled. Fruit 3 - 4-angled, 

 mostly 1-celled, 1 -4-seeded. — Herbs with alternate leaves, and white or purple 

 flowers in a Long-peduncled raceme or spike. 



1. G. biennis, L. Soft-hairy, leaves oblong-lanceolate, acuminate, be- 

 coming smoothish, wavy-denticulate on the margins ; petals spatulate, white ; 

 fruit obtusely 4-an^led, acuminate at both ends, sessile. — Dry soil, Georgia to 

 Tennessee, and northward. July and August. (£, — Stem 3° - 8° high. Spikes 

 compound. 



2. G. angUStifolia, Michx. Stem simple, or sparingly branched, closely 

 pubescent ; leaves lanceolate, acute, coarsely-toothed, often blotched with purple ; 

 the uppermost linear and nearly entire ; fruit nearly sessile, acute at both ends, 

 sharply 3-4-anglcd. — Dry old fields and sandy places near the coast, Florida to 

 North Carolina, and westward. June - August ® — Stem 2° - 3° high. 

 Flowers white. 



3. G. filipes, Spach. Pubescent and somewhat hoary, becoming smooth- 

 ish; stem slender, paniculately branched; leaves linear, toothed, wavy; fruit 

 ovoid, obtuse, sharply 4-angled, on slender pedicels. — Dry pine barrens, Florida 

 to South Carolina, and westward. July - Sept. (g) ? — Stem 2° - 3° high, very 

 leafy. 



2. CENOTHEBA, L. Evening-Primrose. 



Calyx-tube produced beyond the ovary ; the limb 4-lobcd, reflexed and decid- 

 uous. Petals 4. Stamens 8. Stigma 4-lobed. Capsule 4-valved, many-seeded. 



— Herbs, with alternate leaves, and axillary or racemose chiefly yellow flow- 

 ers. Pollen-grains triangular, connected by cobwebby hairs. 



* Capsule cylindrical, sessile: Jlowers expanding at niyht : annuals or biennials. 



1. CE. biennis, L. Hairy, hirsute, or smoothish; stem tall, often simple; 

 leaves lanceolate and ovate-lanceolate, acute, wavy and toothed or serrate on the 

 margins ; the earliest ones sometimes pinnatifid ; spikes leafy, at length elon- 

 gated; calyx-tube longer than the lobes ; flowers large. (CE. muricata, Pwrsh. 

 (E. grandiflora, Ait.) — Fields and waste places, everywhere. June- Sept — 

 Stem 2° -4° high. Varies greatly in pubescence and size of tho flower. 



2. CE. sinuata, L. Hairy or downy ; Btems ascending or diffuse; leaves 

 oblong, pinnately lobed, the lowest pinnatifid; Bowers small, axillary; calyx 

 and capsule hairy. Passes through several intermediate forma into Var. hi kz- 

 itsa, Torr. & Gray. Stems prostrate, hoary; haves Bmall, lanceolate, spar- 

 ingly toothed or entire. — Fields and waste places, common; the variety in 

 drifting sand along the coast. May - Sept. — Stems 2' -2° high. 



* * Capsule obovate or clavate, furrowed, and more or less peduncled : floux 

 ponding in sunshine. 



3. CE. glauca, Michx. B th and Bomewhat glaucous; leaves Bcssile, 



oblong-ovate, wavy-denticulate, acute; racemes few-flowered, leafy; Bowers 

 largo; capsule ovoid-oblong, 4-winged, tapering into a Bhorl pedicel. (G3. 

 Frascri, Purth.) — Mountains of Georgia, North Carolina, and Tennessee. May 



