KUUIACEiE. (madder FAMILY.) 179 



compressed. — Shrubs, with opposite or whorled oblong petioled leaves, lanceo- 

 late stipules, and oi-ange-colored flowers, in axillary and terminal cymes. 



1 . H. patens, Jacq. Pubescent ; branches angled ; leaves 3 in a whori, 

 oblong, acute ; cymes terminal, peduncled, umbellate ; corolla cylindrical, the 

 lobes concave at the apex, and mucronate on the back. — South Elorida. — 

 Leaves 3' -5' long. Flowers crimson. Beny black. 



15. RAWDIA, Houst. 



Calyx obovate, .'i-toothcd. Corolla salver-shaped, 5-lobed. Anthers 5, sessile 

 in the throat of the corolla, linear. Style simple, short. Stigma clavate, 2-lobed. 

 Fruit somewhat dry, 2-celled, many-seeded. Seeds wingless. — Branching mostly 

 spiny shrubs, with opposite leaves, and solitary stipules between the petioles. 

 Flowers solitary or in short racemes. 



1 . E. aculeata, L. Spiny ; leaves small, obovate, smooth, coriaceous ; 

 flowers solitary, axillary; corolla (white) hairy in the throat, the tube 2-3 times 

 as long as the calyx, the limb convolute in the bud. ( R. latifolia, iam.) — 

 South Florida. — Branches rigid. Leaves 5" - 10" long, rather longer than the 

 subulate spreading spines. Corolla 3" -4" long. Fruit ovoid, as large as a 

 pea, about 6-secded. Sinuses of the calyx hairy. 



2. E.. 1 clusisefolia. Spineless ; leaves largo, clustered at the end of the 

 branches, obovate, smooth, mucronate ; stipules large, ovate, persistent ; racemes 

 terminal, corymbose, shorter than the leaves ; calyx-teeth subulate ; corolla 

 smooth witliin, fleshy, the tube many times longer than the calyx, the limb 

 lanceolate, convolute in the bud. (Gardenia clusiasfolia, Jacq. ?) — South Flor- 

 ida. — Leaves 3' -4' long, 2' wide, apparently somewhat fleshy, black when dry. 

 Corolla 1' long. 



16. PINCKNEYA, Michx. Geoegia Bakk. 



Calyx oblong-obovate, 5-lobed ; the lobes lanceolate, deciduous, or one of 

 them, in the outer flowers, often transformed into a large colored leaf Corolla 

 tubular, hairy, with 5 linear-oblong revolute lobes, slightly imbricated in the bud. 

 Stamens 5, exserted : anthers oblong. Stigma obtuse. Capsule globose, papery, 

 2-celled, opening loeulicidally at the apex, and at length septicidally to the base. 

 Seeds numerous, in 2 rows, horizontal, membranaceous, winged. — A shrub or 

 small tree, with pubescent branches. Leaves large, oval or oblong, acute, 

 smoothish above, the lower surface, like the terminal compound cyme, hoary- 

 pubescent. Stipules linear, deciduous. 



1. P. pubens, Michx. — Marshy banks of streams in the pine barrens, 

 Florida to South Carolina. May and June. — More conspicuous for its ovate 

 pink-colored floral leaves, than for its purplish spotted corolla. 



17. EXOSTEMMA, DC. 



Calyx obovate or tubular ; the limb 5-toothed, persistent. Corolla-tube very 

 long, terete ; the limb with 5 long linear recurved lobes, valvate in the bud. 



