ONAGRACEiE. (EVEXING-PRIMROSE FAMILY.) 139 



-July. U — Stem branching, 2° -3° high. Leaves 2' -3' long. Flowers 2' 

 in diameter. 



4. CE. riparia, Nutt. Stem slightly pubescent, very leafy ; leaves linear- 

 lanceolate, remotely denticulate, narrowed into a short petiole ; raceme short, 

 leafy at the base, elongated in fruit ; flowers large ; capsule oblong-clavate, dis- 

 tinctly pedicelled, slightly 4-winged, with 4 strong intermediate ribs. — Swamps 

 and river-banks, Florida and northward. June and July. (2) — Stem 2° - 3° 

 high. Leaves 2' -4' long, pubescent on the midrib and margins. Flowers 2' in 

 diameter. 



5. CE. fruticosa, L. Hairy or smoothish ; stem mostly simple ; leaves 

 lanceolate, commonly wavy and remotely denticulate on the margins ; raceme at 

 first corymb-like, at length elongated ; flowers large ; capsule 4-winged, with in- 

 termediate ribs, oblong-clavate, longer than the pedicel. — Fields, Mississippi to 

 North Carolina, and northward. June -Sept. 1J. — Stem 1°- 2° high. Flow- 

 ers 1'- 2' in diameter. 



6. CE. linearis, Michx. Stem slender, smooth below, pubescent above ; 

 the young branches hoary ; lowest leaves obovate ; the others linear-lanceolate, 

 entire or sparingly denticulate ; raceme short, many-flowered, leafy ; capsule ob- 

 ovate, 4-winged, with conspicuous intermediate ribs, mostly shorter than the 

 pedicel. — Dry light soil, Florida to Mississippi, and northward. April- June. 



— Stem 1° - 1£° high. Flowers 1' in diameter. 



". CE. pumila, L. Low, smoothish; leaves lanceolate, obtuse; raceme 

 leafy ; flowers small ; capsule oblong-obovate, 4-wing-angled, nearly sessile. — 

 Mountains of Georgia and Carolina, and occasionally also around dwellings in 

 the low country, from seeds introduced in Northern hay. June. — Stem 6'- 12' 

 high. Flowers £' in diameter. 



8. CE. linifolia, Nutt- Low, smoothish ; stem at length much branched ; 

 leaves very numerous, linear-filiform, the lowest spatulate ; raceme pubescent, 

 few-flowered ; bracts shorter than the ovary ; flowers small ; lobes of the stigma 

 coherent into a globular head ; capsule obovate, 4-angled, nearly sessile. — 

 Gravelly hills, near Scott's mill, Warren County, Georgia, and westward. June. 



— Stem 6' - 12' high. Flowers 4" - 5" in diameter. 



3. EPILOBITJM, L. Willow-Herb. 



Calyx-tube not prolonged beyond the ovary; the limb 4-cleft, deciduous. 

 Petals 4. Stamens 8. Capsule elongated, many-seeded. Seeds with a tuft of 

 long hairs at the apex. — Perennials, with alternate and opposite denticulate 

 leaves, and chiefly white or purple flowers. 



1. E. angUStifolium, L. Stem tall, simple, smoothish ; leaves alternate, 

 lanceolate, entire or wavy on the margins, paler beneath ; racemes elongated, 

 bracted ; flowers showy ; petals obovate, purple ; stierma 4-lobed ; capsule and 

 calyx hoary-tomentose. (E. spicatum, Lam.) — Mouutains of North Carolina 

 and northward. July. — Stem 3° - 6° high. 



