3 J. leptocarpa Nutt. Hirsute; fls. mostly 6-merous, small; st. erect; lvs. lanceolate, subsessile; caps. linear, much longer than the pedicel, crowned with the lanceolate, acuminate sep. - Fla. and La. to Mo. St. nearly simple, 1 to 2f high. Caps. nearly 2' long, terete, at length nearly smooth.
4 J. repens L. Nearly glabrous; fls. 5-merous, large; st. creeping, ascending; lvs. lance-oval, mostly obtuse, tapering to a slender petiole; caps. cylindrical, much shorter than the long pedicel, with 2 bracteoles at base.- Ponds, La., Ark. Sts. long creeping and floating. Petioles and pedicels about 2' long. Jn. - Aug.
3. OENOTHE'RA, L. Evening Primrose. (Gr. wine, to bunt; the root is said to cause a thirst for wine.) Calyx tube prolonged beyond the ovary, deciduous, segments 4, reflexed; petals 4, equal, obcordate or obovate, inserted into the top of the calyx tube; stamens 8; capsule 4-celled, 4-valved; stigma 4-lobed; seeds many, without a coma. - Herbs with alternate lvs. Fls. yellow.
§ Fls. nocturnal (open by night only). Ovary sessile, oblong...........................
Nos. 1 - 3
§ Fls. diurnal. - Calyx tube not longer than the ovary...............................
. Nos. 4, 5
- Calyx tube about twice longer than the ovary......................
Nos. 6 - 8
- Calyx tube 3 or 4 times longer than the ovary.....................
Nos. 9, 10
1 OE. biennis L. St. erect, hirsute; lvs. ovate-lanceolate, repand-denticulate; fls. sessile, in a terminal, leafy spike; cal. tube 2 to 3 times longer than the ovary; stam. shorter than the obcordate or obtuse petals; caps. oblong, obtusely 4-angled.-
and Common in fields and waste places, U. S. and Brit. Am. St. mostly simple, 2 to 5f high. Lvs. 3 to 6' long, roughly pubescent, slightly toothed, sessile on the stem, radical ones tapering into a petiole. Fls. numerous, large, opening by night and withering the next day. Jn. - Aug.
β. muricata. St. muricate or strigosely hirsute, red; petals scarcely longer than the stamens. St. 1 to 2f high. (OE. muricata Ph.) grandiflora. Petals much longer than the stam, rather deeply obcordate. St. branched. † (OE. grandiflora Ait.)
parviflora. Petals small, about as long as the stamens; tube of the cal. elongated. (OE. parviflora L.)
CRUCIATA. Petals linear-oblong, shorter than the stamens. (OE. cruciata Nutt.)
canescens Torr. & Gr. Petals enlarged; whole plant canescently hairy.- Iowa, etc.
2 Q3. rhombipetala Nutt. Tall, erect; lvs. lance-linear, sessile, acute, spreading, lower ones petiolate, becoming somewhat pinnatifid; spike strict, fls. large, longer than the leafy bracts; cal. tube very slender, 3 or 4 times longer than the sessile ovary; petals rhombic-elliptical, acute or acuminate; caps. small. - Wis. (Dr. Parry) to Ark. (Prof. Robertson.) A fine species, with a profusion of straw-yellow fls. Jn.
3 OE. sinuata L. St. pubescent, diffusely branched or subsimple, decumbent and assurgent; lvs. pubescent, oblong-oval, sinuate-dentate, or incised; fls. axillary, solitary, sessile; cal. villous, the tube twice longer than the ovary; caps. prismatic.- Fields, N. J. to Ga. and La. St. 3 to 8' long. Lvs. often pinnatifld. Fls. about 6" diarn., pale yellow, turning roseate in withering.
β. minima Nutt. Low, simple, 1-flowered; lvs. nearly entire. - Pine barrens, N. J. to Ga, (OE. minima, Ph.)
4 OE. pumila L. Low, pubescent; st. ascending; lvs. lanceolate, entire, obtuse, attenuate at base; spike loose, leafy, naked below; cat. tube shorter than the sub-sessile, oblong-clavate, angular ovary.- A small, half-erect plant, common in grass lands, Can. to S. Car. St. 6 to 10' long, round, slender, simple. Lvs. 1 to 1 1/2' by 2 to 3", radical ones spatulate, petiolate. Fls. yellow, 6" diam., opening in succession, 1 or 2 at a time. Jn., Aug. (OE. pusilla? Mx.)
5 OE. chrysantha Mx. St. ascending, slender; fls. small, crowded, spicate; cal. tube equaling in length the ovary, longer than the segm.: petals broadly obo-vate, emarginate, longer than the stamens; caps. smooth, pedicellate, clavate, the alternate angles slightly winged.- Western N. Y. to Mich. St. 12 to 18' long, purple. Lvs. lanceolate, obtuse, attenuate at base, denticulate, radical ones spatulate. Fls. 5" diam., orange-yellow. Jn., Jl.
6 OE. fruticosa L. St. pubescent or hirsute; lvs. oblong-lanceolate, repand-denti-eulate; rac. leafy or naked below, corymbed; caps. oblong-clavate, 4-winged, with intermediate ribs, pedicellate.- In sterile soils, Mass., Conn., N. Y. to Fla. and W. States. St. hard, rigid (not shrubby), 1 to 3f high. Lvs. variable in pubescence, form and size, 1 to 3' by 3 to 8", sessile, minutely punctate. Fls. few or many, 1 1/2' diam., in a terminal, bracteate, mostly pedunculate raceme. Cal. tube longer than the ovary. Petals broad-obcordate, yellow. Jn., Aug.
β. ambigua. Lvs. membranous; petals longer than broad. 7. OE. riparia Nutt. Nearly glabrous; stem erect, with slender branches, usually purple and polished; lvs. linear-lanceolate, acutish at both ends, petiolate, repand-denticulate, coriaceous; fls. large, loosely corymbed, at length racemed; cal. tube nearly twice longer than the pedicelled ovary; caps. clavate, scarcely winged.- Along rivers, N. J. to Fla. and Ala. St. 1 to 2f high. Lvs. 2 to 4' long. Fls. as large as in No. 6. A handsome species. May, Jn.