78 SAPINDACEM. (SOAP-BERRY FAMILY.) 
ORDER 42. SAPINDACEZE. (Soap-perry FAMILY.) 
Trees or shrubs, rarely herbs, with exstipulate alternate or opposite 
leaves, and chiefly irregular and 7-9-androus flowers, imbrieated in the 
bud. — Calyx 4-5-lobed. Petals 4—5, inserted with the stamens into a 
hypogynous or somewhat perigynous disk. Anthers opening lengthwise. 
Ovary 3-celled, the cells 1-2-ovuled. Seeds without albumen. Embryo 
mostly curved or convolute. Cotyledons incumbent, fleshy. 
Synopsis. 
Tre I. DODONE A. — Ovules 2-3 in each cell. Embryo spirally coiled. Cotyledons 
distinct. — Leaves alternate. 
1. DODONZEA. Ovules 2in each cell. Petals none. Capsule 2 - 4-winged. 
Tre I. SAPINDE 2X. — Ovules usually solitary. Embryo curved or straight. Coty- 
ledons distinct. — Leaves alternate. 
2. HYPELATE. Ovules2-3in each cell. Petals 4-5, regular. Fruit drupaceous. 
8. SAPIN DUS. Ovules solitary. Petals 5, regular. Fruit baccate. 
4 CARDIOSPERMUM. Ovules solitary. Petals 4, irregular. Fruit a bladder-like capsule. 
Tree Ill. HIPPOCASTANE ZX. —Ovules2ineach cell. Embryoroundish. Coty- 
ledons very thick and partly united. — Leaves opposite. 
5. ZESCULUS. Calyx 5-lobed. Petals 4-5, unequal. — Leaves digitate. 
1. DODONZA, L. 
Flowers perfect or polygamous. Calyx 3-5-parted. Petals none, Stamens 
5-8: anthers thick, on short filaments. Ovary 3-4-celled, with 2 ovules in 
each cell; the upper one ascending, the lower pendulous. Styles united. Cap- 
sule membranaceous, 2 — 4-winged, septicidally 2 — 4-valved, the cells 1 — 2-seeded. 
Embryo spirally coiled. — Trees or shrubs, with chiefly simple leaves, and, axil- 
lary or terminal whitish or greenish flowers. 
1. D. viscosa, L. Leaves viscid, obovate-oblong, entire, parallel-veined ; 
racemes axillary and terminal, shorter than the leaves; capsule 3-winged, 3- 
seeded. — South Florida. — Shrubs 6? —109 high. Flowers greenish, 
2. HYPELATE, P. Browne. 
Calyx 3-5-parted. Petals 4—5, regular. Stamens 6—10, inserted on the 
inner face of the cup-shaped disk which fills the base of the calyx. Ovary 2- 
celled, with 2-3 pendulous ovules in each cell. Styles united. Stigma 2-Jobed. 
Drupe globose, 1-2-seeded. Embryo erect. — Trees with alternate trifoliolate 
or abruptly pinnate leaves, and clustered or panicled polygamous flowers. 
