EUPHORBIACEAE 703 
9 Tragia macrocárpa Willd. Plants slightly hirsute. Stems slender, twining, 4-15 
dm. long, branched: leaf-blades ovate, 5-12 cm. long, deeply cordate, coarsely dentate, 
serrate, long-acuminate ; petioles mostly shorter than the blades: staminate flowers with a 
calyx of 3 sepals and 3 stamens: pistillate flowers several at the base of each spike, short- 
quee sepals 5 : capsules depressed, 12-16 mm. in diameter: seeds subglobose, 5 mm. 
ong, smooth, variegated. 
In dry or rocky soil, Kentucky to Missouri, Florida and Mexico. 
13. GYMNANTHES Sw. 
Evergreen shrubs or trees, with glabrous foliage and a milky sap. Leaves alternate : 
blades leathery, entire or crenate-serrate. Flowers monoecious or rarely dioecious : stami- 
nate in slender, axillary racemes furnished with bracts and bractlets : pistillate flowers sol- 
itary on long peduncles, 1, 2 or 3 of which arise from the axils with the staminate flowers. 
Perianth rudimentary or wanting. Stamens 2-3: filaments distinct or united at the base. 
sometimes subtended by the scale-like rudimentary perianth : antherserect. Ovary 3-celled, 
sometimes long-stalked, subtended by the rudimentary perianth of 3 scale-like parts, pro- 
longed into 3 recurved styles. Ovules solitary in each cavity, suspended, anatropous. 
Capsule 3-lobed, separating into 3 2-valved bodies. Seeds pendulous, with a membranous- 
crustaceous testa. 
1. Gymnanthes licida Sw. An evergreen shrub or tree, reaching a height of 10 m., 
the foliage glabrous. Leaf-blades leathery, cuneate to oblong-spatulate, or nearly oblong, 
4-10 cm. long, lustrous above, undulate or obscurely toothed near the apex, short-petioled : 
spikes staminate, shorter than the leaves, continuous: bracts reniform: perianth none: 
stamens 2-3, subtended by reniform bractlets : pistillate flowers solitary, on curved pedun- 
cles, these somewhat shorter than the spikes: ovary stalked : capsules depressed, about 1 
em. broad, 3-lobed, the lobes rounded : seeds ovoid, 6-8 mm. long. 
In coral soil, peninsular Florida and the Keys. Also in the Bahamas and the Antilles. POISON- 
WOOD. CRABWOOD. 
14. SEBASTIANA Muell. Arg. 
Monoecious shrubs or rarely herbs, with rather slender branches. Leaves alternate: 
blades entire or barely toothed, never large. Flowers inconspicuous, apetalous, in slender 
Spikes or racemes. Disk wanting. Staminate flowers with a membranous calyx of 3-5 un- 
equal sepals. Stamens 2-3 or rarely 4: filaments distinct or slightly united at the base: 
anthers opening lengthwise.  Pistillate flowers below the staminate, with a calyx of 3 more 
or less united sepals. Ovary 3-celled : styles 3, simple. Ovules solitary in each cavity. 
Capsule 3-celled, 3-lobed. Seeds solitary, with a smooth testa. 
l. Sebastiana ligustrina (Michx.) Muell. Arg. An erect widely branched shrub 
1-4 m. tall, the foliage glabrous. Leaf-blades thickish, oblong, elliptic or oval, 3-8 cm. 
long, usually slightly acuminate at both ends, rarely obtuse, undulate, short-petioled : 
pe shorter than the leaves, sometimes in pairs: calyx yellowish, that of the staminate 
owers with 3 ovate acute or acuminate serrulate sepals: stamens 3: calyx of pistillate 
flowers nearly similar to that of the staminate : capsules nearly 1 cm. broad, depressed, 
3-celled smooth : seeds subglobose, 4 mm. long. 
On banks and in swamps, North Carolina to Florida and Louisiana. Spring to fall. 
15. SAPIUM P. Br. 
Dioecious or rarely monoecious shrubs or trees, with glabrous foliage. Leaves alter- 
nate or opposite: blades entire or sparingly toothed, often leathery, sometimes long- 
petioled. Flowers apetalous, in axillary, lateral or apparently terminal spikes or racemes. 
Disk wanting. Staminate flowers with a calyx of 2 or rarely 3 nearly equal united sepals : 
stamens 2-3: filaments distinct : anthers opening lengthwise.  Pistillate flowers below the 
staminate, with a calyx of 2 or 3 more or less united sepals. Ovary 2-3-celled : styles 2-3 
slightly united at the base, entire. Ovules solitary in each cavity. Capsule 2-3-lobed, 
2-3-celled. Seeds solitary, with a crustaceous testa. 
Leaf-blades rhombic : capsules 3-lobed : seeds 8-9 mm. long. 1. S. sebiferum. 
Leaf-blades linear-oblongor narrowly oblong: capsules 2lobed : seeds 6-7 mm. long. 2. S. glandulosum. 
