16 NORTH AMERICAN FLORA [VOLUME 32 
secondary ones finely reticulate, glabrous or puberulent; corolla 2.5—-3 cm. long, purple, densely 
or sparsely puberulent or fulvous-sericeous outside, the tube 3-5 mm. thick, the lobes deltoid- 
ovate, 3-4 mm. long, acute, puberulent within; stamens short-exserted, the filaments very 
slender, glabrous, the anthers purplish, 1.5 mm. long; capsule 5-7 mm. long, 5-6 mm. wide, 
brownish-black, coarsely lenticellate, shallowly bisulcate; seeds about 0.5 mm. long, pale- 
yellowish. 
TYPE LOCALITY: Caracas, Venezuela. 
DISTRIBUTION: Guatemala to Colombia and Venezuela; reported also from Mexico. 
ILLUSTRATIONS: E. & P. Nat. Pfl. 44: f. 6, P: Oerst. Am. Centr. pl. 13; Jacq. Hort. Schoenb. #l. 
43; Ann. Sci. Nat. IV. 1: pl. 10, f. 4-7; Bot. Mag. pl. 5110. 
8. PINCKNEYA?* Michx. Fl. Bor. Am. 1: 103. 1803. 
Trees or shrubs, pubescent, the branches terete. Leaves opposite, petiolate, the blades 
large, membranaceous. Stipules interpetiolar, membranaceous, caducous. Flowers showy, 
in terminal and axillary corymbs; hypanthium turbinate; calyx 5-lobate, 3 or 4 of the lobes 
lance-subulate, 1 or 2 expanded into a large petiolate bright-colored limb; corolla-tube elon- 
gate, pilose within, the throat slightly enlarged, the limb 5-lobate, the lobes recurved, valvate, 
tomentose within. Stamens 5, inserted at the base of the corolla-tube; filaments filiform; 
anthers versatile, oblong, exserted. Disk large, annular. Ovary 2-celled; style filiform, 
exserted, obtusely bilobate; ovules numerous, inserted on slender bifid placentae longitudinally 
attached to the septum. Capsule subglobose, bisulcate, 2-celled, loculicidally bivalvate, the 
valves bipartite. Seeds numerous, minute, compressed, crowded, horizontal, the testa re- 
ticulate, winged; endosperm fleshy; embryo elongate, the cotyledons concavo-convex, the 
radicle short. 
Type species, Pinckneya pubens Michx. 
1. Pinckneya pubens Michx. Fl. Bor. Am. 1: 105. 1803. 
Cinchona caroliniana Poir. in Lam. Encyc. 6:40. 1804. 
Pinckneya pubescens Pers. Syn. Pl. 1: 197. 1805. 
Shrub or tree, 9 meters high or less, the trunk sometimes 2.5 dm. in diameter, the wood 
soft, close-grained, brown, the bark scaly, light-brown, the branchlets reddish-brown, stout, 
densely white-pilose, becoming glabrate; stipules 5-10 mm. long, lance-triangular or ovate- 
deltoid, acute or attenuate, brown; petioles stout, 1.5—2.5 cm. long, densely pilose; leaf-blades 
ovate, oval, oblong-oval, or broadly oval-ovate, 9-20 cm. long, 4.5-10 cm. wide, obtuse or 
acute at the apex, abruptly acute or acuminate at the base and short-decurrent, dark-green 
above and sparsely short-pilose, becoming glabrate, paler beneath and densely short-pilose, 
or in age glabrate, the costa slender, prominent beneath, the lateral veins slender, prominent 
beneath, 6-8 on each side, arcuate, laxly anastomosing near the margin; corymbs many-flowered, 
usually about 20 cm. broad, leafy, the bracts linear-subulate, the branches densely pilose, the 
flowers sessile or short-pedicellate; hypanthium 5-6 mm. long, densely white-sericeous; normal 
calyx-lobes 6-12 mm. long, sericeous, 1 or 2 of the lobes expanded into a limb, this broadly 
oval to suborbicular, 3.5—7 cm. long, 2.5—5 cm. wide, pink, broadly rounded to acute at the 
apex, acute to rounded at the base, short-pilose or glabrate, prominently veined, on a petiole 
5-12 mm. long; corolla 3-4 cm. long, the tube about 3 mm. thick, densely sericeous, the lobes 
lance-oblong or oblong-linear, 6-12 mm. long, acute, yellowish, marked with brown or purple; 
anthers 2.5 mm. long; capsule ligneous, 1.2-2 cm. long and often broader, reddish-brown, 
prominently lenticellate; seeds pale-brown, the body 2—3 mm. long, surrounded by a thin wing 
1—7 mm. broad. 
TYPE LOCALITY: Banks of St. Marys River, Georgia. 
DISTRIBUTION: Borders of swamps and streams in the coastal region, South Carolina to Florida. 
ILLUSTRATIONS: Michx. Fl. Bor. Am. pl. 13; Britton, N. Am. Trees f. 764; Gaertn. Fruct. 
pl. 194; Michx. f. Sylva pl. 49; W. Barton, Fl. N. Am. pl. 7; Audubon, Birds pl. 165; E. & P. Nat. 
Pfl. 44: f. 6, M-O; Sarg. Silva pl. 227, 228; Sarg. Man. f. 634. 
* Sometimes spelled Pinknea or Pinkneya. 
