176 EUBlAOEiE. (madder family.) 



anil slender; fruit ovoid, strongly ribbed, crowned with the 2 (rarely 4) linear 

 or lanceolate calyx-teeth. (1). tetragona, Watt. 1). hirsuta, Pursh.) — Wet 

 j, Florida to North Carolina, and westward. Jane-Sept — Stem l°-4° 

 long. Flowers white or purplish. 



2. D. teres, Walt. Annual ; stem erect, widely branched from the base, 

 terete, bristly or hairy ; leaves linear or lanceolate, acute, rough ; flowers soli- 

 tary or 2-3 together; corolla funnel-shaped ; fruit obovate, even, crowned with 

 the 4 short calyx-teeth. (Spermacoce diodina, Mich.r.) — Dry sandy soil, Flor- 

 ida to Mississippi, and northward. July-Sept. — Stem C'-IJ' high, some- 

 times prostrate. Flowers purplish. 



5. ERNODEA, Swartz. 



Calyx ovate ; the limb 4 - 6-parted, persistent. Corolla salver-shaped, slender ; 

 the lobes .4 — 6, re volute. Stamens exserted ; anthers linear, erect. Style slen- 

 der, longer than the stamens. Fruit obovate, somewhat fleshy, the two separa- 

 ble horny carpels closed. Seeds furrowed on the inner face. — A somewhat 

 shrubby prostrate and smooth plant, with rigid 3-uerved lanceolate leaves, and 

 solitary sessile axillary flowers. 



1. E. littoralis, Swartz. — South Florida, along the coast. March and 

 April. — Stems straight, rigid, 4-angled, smooth. Branches short, alternate. 

 Leaves sessile, smooth, acute, the upper ones crowded. Flowers sessile in the 

 upper axils, yellow. Fruit roundish. 



6. CEPHALANTHUS, L. Button-Bush. 



Calyx obconical, 4-toothed. Corolla tabular, 4-cleft, imbricated in the bud. 

 Stamens 4. Style slender, exserted. Stigma capitate. Fruit dry, obconical, 

 separating from the base into 2-4 one-seeded carpels. Seeds pendulous. Alba- 

 men horny. — Aquatic shrubs, with oval or lanceolate leaves, short entire sti- 

 pules, and white llowers collected into a globose long-pedunelcd head. Ueecp- 

 tacle hairy. 



1. C. OCCidentalis, L. Smooth, or the young brandies and lower BUT- 

 face of the ovate-oblong acute leaves pubescent; peduncles terminal, and in the 



upper axils. — Ponds and marshes, Florida, and northward, duly and August. 

 — Stem 4° -12° high. Leaves petioled, S' - 5' long, sometimes :s in a whorl. 



Heads 1' in diameter. 



7. MITCHELLA, 1 



Flowers by pairs, with their ovaries united. Calyx 4-toothed. Corolla fun- 

 nel-shaped, 4-lobed, hairy within, valvate in the bud Stamens 4. Style slen- 

 der. Stigmas i. Fruit composed of two 4-eeeded fleshy drupes united, crowned 

 with the -i toothed calyx. — A Bmooth creeping evergreen shrub, with small 

 broadly-ovate leaves, minute stipules, and fragrant white terminal flowi re. 



i. M. repcn8, L. — Shady woods, Florida to Mississippi, and northward. 

 March and April - Stem r 2° long. Leaves 6"-10* long, mostly -,, m , 

 what cordate, shining above, on Blender petioles. Corolla \' long. Fruit red 



