138 ONAGRACE^. (eVENING-PEIMROSE FAMILY.) 



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

 mostly 1-cellcd, 1 -4-seeded. — Herbs with alternate leaves, and vifliite or purple 

 flowers in a long-peduneled 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-angled, 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-angled. — 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. (f) ? — Stem 2° - 3° high, very 

 leafy. 



2. CENOTHERA, L. Evening-Peimeose. 



Calyx-tube produced beyond the ovary ; the limb 4-lobed, reflexcd 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 cylindncal, sessile: flowers expanding at m'yht : 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 seiTate on the 

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

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

 02. grandiflora, ^i(.) — Fields and waste places, everywhere. June-Sept. — 

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



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

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

 and capsule hairy. Passes through several intermediate forms into Var. humi- 

 FUSA, Torr. & Gray. Stems prostrate, hoary ; leaves small, 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 pedunded : flowers ex- 

 panding in sunshine. 



3. CE. glauca, Michx. Smooth and somewhat glaucous ; leaves sessile, 

 oblong-ovate, wavy-denticulate, acute ; racemes fcw-flowercd, leafy ; flowers 

 large; capsule ovoid-oblong, 4-winged, tapering into a short pedicel. (CE. 

 Fraseri, Pursh.) — Motmtains of Georgia, North Carolina, and Tennessee. May 



