138 ONAGRACEJ.  (EVENING-PRIMROSE FAMILY.) 
6-8. Style declined: stigma 4lobed. Ovary3-4-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. Œ. biennis, L. Soft-hairy; leaves oblong-lanceolate, acuminate, be- 
coming smoothish, wavy-dentieulate 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. (g)— Stem 39 - 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 29-39 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 29-39 high, very - 
leafy. T 
9. ŒNOTHERA, L. EvzwiNG-PRIMROSE. 
Calyx-tube produced beyond the ovary ; the limb 4-lobed, reflexed and da 
uous. Petals 4. Stamens 8. Stigma 4lobed. 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: flowers expanding at night : annuals or biennials. > 
1. CH. 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, Pursh. 
Œ. grandiflora, Ait.) — Fields and waste places, everywhere. June- Sept.— 
Stem 2? — 4° high. Varies greatly in pubescence and size of the flower. 
2. Œ. 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- 
FUSUM, Torr. & Gray. Stems prostrate, hoary; leaves small, lanceolate, spat 
ingly toothed or entire. — Fields and waste places, common ; the variety m x. 
drifting sand along the coast. May — Sept. — Stems v- 2° high. ; 
* ** Capsule obovate or clavate, furrowed, and more or less peduncled : flowers e 
panding in sunshine. 
3. CR. gio, Michx. Smooth and somewhat glaucons; leaves pe 
. oblong-ovate, bo cong acute ; Tácetues few-flowered, leafy ; M 
