352 Oedek 62.— ONAGRACE^ 



1 J. deciirrens DC. Glabrous ; fls. i-^merow ■ eis. erect, with slender branches^ 

 and winged by the deeurreut I7S. ; Its. lanceolate, sessile ; caps, clavate, 4-angled, 

 thrice longer than the pedicel, crowned with the lance-ovate, acuminate calyx 

 lobes. — U In swamps, Ta. to Pla. and La., common. Sts. 6 to 12 to 20' high. 

 Lvs. 2 to 3' long. Fls. showy, expanding about 9". JL — Sept. 



2 J. grandiflora Mx. Hirsute ^ fls. 5-merous; st. creeping at base, erect; Its. 

 elliptical, the lower spatulate, acutish, short-petioled ; fls. large; ova. slender, 

 shorter than the pedicels ; sep. lanceolate, acute. — if Bogs and ditches, S. Oar. 

 Ga. (Savannah, Feay and Pond). Creeping stems several feet long, branches 1 to 

 2f high. Ova. witli 2 tubercles at base. Fls. expanding nearly 2', May — Aug. 



3 J. leptocarpa Nutt. Ifirsute; fls. mostly G-merous, small; st. erect; hs. 

 lanceolate, subsessile ; caps, linear, inuch longer than the pedicel, crowned with the 

 lanceolate, acuminate sep. — (1) 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. — 2| Ponds, La., Ark. 

 Sts. long creeping and floating. Petioles and pedicels about 2' long. Jn. — Aug. 



3. (ENOTHE'RA, L. Evening Primrose. (Gr. olvog, wine, Orjpdcj, 

 to hunt ; the root is said to cause a thirst for wine.) Calyx tube pro- 

 longed 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. 



§ Fla. nocturnal (open by night only). Ovary BessUe, oblong "Nos. !■ — 3 



§ Fls.- diurnnl. — Calyx tube nut longer than the ovary Nua. 4, 5 



— Galyx tube about twice longer than tl^e ovary Kos. 6-— 8 



— Calyx tube 3 or 4 times longer than the ovary Nos. 9, 10 



1 CB. biennis L. St erect, hirsute; lvs. ovate-lanceolate, repand-denticvlale ; 

 fls. sessile, in a terminal, leafy spike ; cah tube 2 to 3 times longer than the ovary ; 

 stam. shorter than the obcordate or obtuse petals ; caps, oblong, obtusely 4-angled. — 

 (J) and (D Common in fields and waste places, U. S. and Brit. Am. St. mostly 

 simple, 2 to Sf high. Lvs. 3 to 6' long, roughly pubescent, slightly toothed, ses- 

 sile on the stem, radical ones tapering into a petiole. Fla. numerous, large, open- 

 ing by night and withering the next day. Jn. — Aug. 



/J. mukicIta. St. muricate or strigosely hirsute, red ; petals scarcely longer 



than the stamens. St. 1 to 2f high. (CE. muricata Ph.) 

 y. GRANDIFLORA. Petals much longer than the stem, rather deeply obcordate. 



St. branched, -j- (CE. grandiflora Ait.) 

 i. parvifl6ra. Petals small, about aa long as the stamens ; tube of the cal. 



elongated. (CE. parviflora L.) 

 t. CEUCIATA. Petals linear-oblong, shorter than the stamens. (CE. cruciata 



Nutt.) 

 C OAN^SCENS Terr. & Gr. Petals enlarged ; whole plant canescently hairy. — 



Iowa, etc. 



2 CB. rhombip^tala Nutt Tall, erect; lvs. lance-linear, sessile, acute, spread- 

 ing, lower ones petiolate, becoming somewhat pinnatifld ; spike strict, fls. large, 

 longer than the leafy bracts ; cal. tube very slender, 3 or 4 times longer than the 

 sessile ovary ; petals rhovibic-eUiptical, acute or acuminaie ; caps, small. — Wis. 

 (Dr. Parry) to Ark. (Prof Robertson.) A fine species, with a profusion of straw- 

 yellow fla Jn. 



3 CB. sinuata L. St. pubescent, diffusely branched or subsimple, decumbent 

 and assurgent ; lvs. pubescent, oblong-oval, sinuate-dentate, or incised ; fls. axil- 

 lary, solitary, sessile ; cal. villous, the tube twice longer than the ovary ; caps. 

 prismatic— <D Fields, N. J. to Ga. and La. St. 3 to' 8 long. Lvs. often pinnati- 

 fld. Fls. about 6" diam., pale yellow, turning roseate in withering. 



(). MINIMA Nutt. Low, simple, 1-flowered; lvs. nearly entire. — Pine barrens, 

 N. J. to Ga. (CE. minima, Ph.) 



