OKDEK L. OXAGEACKE. 313 



Genus I.— EPILO'BIUM. L. 8—1. 



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

 the pod.) 



Calyx campanulate ; 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, crowned with a coma. Perennial 

 herbs. 



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

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

 F/oicers iu terminal racemes, small. Petals 2-cleft. Capsules on short 

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

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



Genus H.— (EXOTHE'RA. L. 8—1. 



(From the Greek cenos, wine, and theva, a catching: the roots of the CE. oionnis 

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

 as wine-catching.) 



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

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

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

 plants, with alternate leaves and axillary or terminal flowers. 



1. CE. bien'xis, (L.) Stem herbaceous, erect, terete, generally sim- 

 ple, 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. 21. Sept, — Oct. 

 Common. 3 — 8 feet. Evening Primrose. 



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

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

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



3. CE. graxdiflo'ra, (Ait.) Stem nearly glabrous, branching. Leaves 

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

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

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



4. CE. sixca'ta, (L.) Stem diffuse, pubescent, ascending or decum- 

 bent, simple or branching from the base. Leaves sinuately toothed, 

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

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

 Yellow, becoming rose-color. 21. May — June. Dry pastures. 1 — 2 

 feet. 



5. CE. fructico'sa, (L.) Stem pubescent or nearly glabrous, branch- 

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

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

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

 calyx. Capsules oblong, clavate, pedicellate, angled. — Pale yellow. !(.. 

 July — Aug. Middle Geo. and Car. 1 — 2 feet. 



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