2(j() FLORA OF TEXAS. 



late, clothed with a very short velvety pubescence on both 

 sides; spikes virgate, strict, very many-flowered, much 

 elongated in fruit ; bracts lanceolate-subulate ; flowers very 

 small ; tube of the calyx shorter than the glabrous ovary 

 and longer than the segments ; /n<eY sessile, oblong-clavate, 

 4-nerved, slightly 4-angled ; petals spatulate-oblong, scarcely 

 unguiculate, shorter than the calyx-segments, rose-color. — 

 Drummond, 



(ENOTHERA, L. Evening Pkimrose. 



Calyx-iwhQ produced beyond the ovary, the limb 4-lobed, 

 reflexed and deciduous; ^je/f^/s 4; stamens 8; stigma 

 4-lobed; capsule 4-valved, many-seeded. — Herbs, with 

 alternate leaves and axillary or racemose chiefly yellow 

 flowers. Pollen grains triangular, connected by cobwebby 

 hairs. 



* Capsule cylindrical, sessi'e; flowers expanding at night; annuals or biennials. 



(E. BIFRONS, Doug. Pubescent ; stem erect, often branch- 

 ing above; leaves oblong or ovate, the upper ones short, 

 closely sessile and somewhat cordate, denticulate; spikes 

 elongated ; bracts ovate-cordate ; tube of the calyx very 

 slender, much longer than the segments, and many times 

 longer than the slightly hairy ovary; petals entire, about 

 the length of the stamens; capsules prismatic-cylindrical, 

 nearly glabrous. — Driimmond. 



(E. Drummondii, Hook. Softly pubescent; stem de- 

 cumbent; leaves ovate-elliptical or oblong, rather obtuse, 

 the lower ones tapering into a petiole, somewhat sinuately 

 toothed, the upper ones obscurely denticulate ; flowers very 

 large, axillary; tube of the calyx equaling in length the 

 segments and the hirsute ovary ; petals much longer than 

 the slightly declined stamens, a little exceeding the calyx- 

 segments; capsules cylindrical, elongated, hirsute-pubes- 

 cent, slightly pediceled. — Driimmond ; Gray and Torrey. 



