78 SAPINDACEjE. (soap-berry family.) 



Order 42. SAPINDACEiE. (Soap-berry Family.) 



Trees or shrubs, rarely herbs, with exstipulate alternate or opposite 

 leaves, and chiefly irregular and 7 - Lt-androus flowers, imbricated 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. 



Tribe I. DODONEJE. — Ovules 2-3 in each cell. Embryo spirally coiled. Cotyledons 

 distinct. — Leaves alternate. 



1. DODONiEA. Ovules 2 in each cell. Petals none. Capsule 2 - 4-winged. 



Tribe II. SAPINDEjE. — Ovules usually solitary. Embryo curved or straight. Coty- 

 ledons distinct. — Leaves alternate. 



2. T1YPEI.ATE. Ovules 2 - 3 iu each cell. Petals 4-5, regular. Fruit drupaceous. 



3. SAPINDUS. Ovules solitary. Petals 5, regular. Fruit baccate. 



4. CARDIOSPERMUM. Ovules solitary. Petals 4, irregular. Fruit a bladder-like capsule. 



Tribe III. HIPPOCASTANE^E. — Ovules 2 in each cell. Embryo roundish. Coty- 

 ledons very thick and partly united. — Leaves opposite. 



5. iESCULUS. Calyx 5-lobed. Petals 4-5, unequal. — Leaves digitate. 



1. DODONJEA, 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 .'S-wingcd, 3- 

 seeded. — South Florida. — Shrubs 6°- 10° high. Flowers greenish. 



2. HYPELATE, P. Browne. 



Calyx 3 -5-parted. Petals 4-5, regular. Stamens r. -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. St\ lea united. Stigma 2-lobed. 

 Drape globose, l -2-seeded. Embryo erect. — Trees with alternate trifoliolate 

 or abruptly pinnate leaves, and clustered or panicled polygamous flowers. 



I. II. trifoliata, P. Browne. Leaves trifoliolate; leaflets obovate, coria- 

 ceous, glabrous, entire; panicles corymbose, slender, axillary, longer than the 



leaves, few-flowered; calyx 8-4-parted, pubescent within; petals i. ciliate; 



drape black, l-sccded. — South Florida. — A small tree, with brittle branches. 

 Leaflets 1' long, with fine oblique parallel veins. Flowers small, white. Sta- 

 mens 6-8. 



