OIlDEIi L. — ONAGRACEJC. 313 



Genus L— EPILO'BIUM. L. 8—1. 



(From the Greek epi, upon, and lohos, a pod, the flower being seated on the top of 

 the pod.) 



Calyx campanulale ; segments 4, spreading. Petals 4. Sta- 

 mens 8, alternate ones longest. Anthers elliptical, attached 

 near the middle. Stigma clavate. Capsule quadrangular, 4- 

 celled. Seeds numerous, cro^Yned with a coma. Perennial 

 herbs. 



1. E. colora'tum, (Muhl.) Stem branching, glabrous, nearly terete. 

 Leaves opposite or alternate, lanceolate, seiTulate, on short petioles. 

 Flowers iu terminal racemes, small. Petals 2-cleft. Capsules on short 

 pedicels, slightly pubescent, linear, 4-angled. Seed oblong. — Purple. 

 2f. July — Aug. Mountains. 1 — 3 feet. 



Genus II.— (ENOTHE'RA. L. 8—1. 



(From the Greek <x,nos, wine, and //tero, a catching: the roots of the (E. biennis 

 were formerly eaten as an incentive to wine-drinking; hence the name of the genus 

 as wine-catching.) 



Calyx tubular, 4-cleft ; segments rellexed. Petals 4, equal, 

 obovate. Stamens 8. Ovary 4-celled ; ovules numerous. 

 Stigma 4-cleft. Capsule 4-valved, many-seeded. Ilerbaceous 

 plants, with alternate leaves and axillary or terminal flowers. 



1. ffi. bien'nis, (L.) Stem herbaceous, erect, terete, generally sim 

 pie, hirsute. Leaves alternate, pubescent, sessile, ovate-lanceolate, den- 

 ticulate. Flowers in terminal, leafy spikes. Calyx longer than the 

 ovary, thickened at the summit ; segments hairy on the outside, re- 

 flexed. Stamens slightly declined. Petals obovate, emarginate. Cap- 

 sule nearly cylindrical Seeds numerous. — Yellow. 2^. Sept. — Oct. 

 Common. 3 — 8 feet. Evening Primrose. 



2. (E. murica'ta, (Murr.) Resembles the CE. biennis, but with 

 smaller flowers. Stem purplisli, muricate. Leaves lanceolate. Petals 

 a little longer than the stamens. Ovaries strigose-hirsute. 



3. (E. grandiflo'ra, (Ait.) Stem nearly glabrous, branching. Leaves 

 ovate-lanceolate, glabrous, sometimes pubescent. Flowers axillarv, 

 large ; tube of the calyx very long. Petals longer than the stamens. — 

 Yellow. 0. Through the summer. Cultivated grounds. 2 — 3 feet. 



4. (E. sinua'ta, (L.) Stem diffuse, pubescent, ascending or decum- 

 bent, simple or branching from the base. Leare.'i sinuately toothed, 

 oblong, often pinnatifid. Flowers axillary, solitary, sessile. Petals 

 nearly obcordate. Calyx villous. Capsules cylindrical, furrowed. — 

 Yellow, becoming rose-color. If. May — June. Dry pastures. 1 — 2 

 feet. 



5. CE. FRUTico'sA, (L.) Stem pubescent or nearly glabrous, branch- 

 ing from the base, divaricate. Leaves sessile, lanceolate, denticulate, 

 acute, mnrUed -with minute linear dots. Flowers large, in terminal ra- 

 cemes. Petals broadly obcordate, longer than tlie segments of the 

 calyx. Capsules oblong, clavate, pedicellate, angled. — Pale y.Uow. If. 

 July — Aug. Middle CJoo. and Car. 1—2 foot. 



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