SAPINDACE^. (soapberry FAMILY.) 115 



3. AMPELOPSIS, Miclix. Virginian Ckkeper. 



Calyx slightly 5-toothed. Petals concave, tliick, expanding hefore they fall. 

 Disk none. — Leaves digitate, with 5 (3 - 7) oblong-lanccolatc sparingly serrate 

 leaflets. Flower-clusters cymose. Tendrils fixing themselves to trunks or 

 walls by dilated sucker-like disks at their tips. (Name from &fxir(Kos, a vine, 

 and o\pis, appearance.) 



1. A. quinquef611a, Michx. A common woody vine, in low or rich 

 grounds, climbing extensively, sometimes by rootlets as well aa by its disk- 

 bearing tendrils, blossoming in July, ripening its small blackish berries in 

 October. Also called American Ivij, and still less appropriately, Wuudbine. 

 Leaves turning bright crimson in autumn. 



Order 29. SAPINDACE^. (Soapberry Family.) 



Trees or shrubs, with simple or compound leaves, mostly unsymmetrical 

 and often irregular Jlowers ; the 4-5 sepals and petals imbricated in cesti- 

 vation ; the 5-10 stamens inserted on ajleshy {perigynous or hypogynous) 

 disk; a 2-3-celled and -lobed ovary, with 1-2 {rarely more) ovules in 

 each cell : and the embryo (except Staphylea) curved ur convolute, with- 

 out albumen. — A large and diverse order. 



SuBORDKR I. Sapiiideae. Flowers (often polygamous) mostly un- 

 symmetrical and irregular. Stamens commonly more numerous than tlic 

 petals, rarely twice as many. Ovules 1 or 2 in each cell. Embryo 

 curved or convolute, rarely straight ; cotyledons thick and fleshy. — Leaves 

 alternate or sometimes opposite, without stiijules, mostly compound. 



\. ^sculus. Flowers irregular. Calyx 5-lobed. Petals 4 or 5. Stamens conimouly 7. 



Fruit a leathery 3-vaived pod Leaves opposite, digitate. 

 ?. Sapindus. Flowers regular. Sepals 4 - 5, in two rows. Petals 4 -5. Stamens 8-10. 



Fruit a globose or 2-3-lobed beiTy Leaves alternate, pinnate. 



Suborder IT. Acerinene. (Maple Family.) Flowers (polyga- 

 mous or diuicious) small, regular, but usually unsymmetrical. Petals 

 often wanting. Ovary 2-lobed and 2-celled, with a pair of ovules in each 

 cell. Fruits winged, 1 -seeded. Embryo coiled or folded ; the cotyle- 

 dons long and thin. — Leaves opposite, simple or compound. 



3. Acer. Flowers polygamous. Leaves simple. 



4. Negundo. Flowers dioecious. Leaves pinnate, with 3 - 5 leaflets. 



Suborder III. Stapliyleae. (Bladder-Nut Family.) Flowers 

 (perfect) regular; stamens as many as the petals. Ovules 1-8 in each 

 cell. Seeds bony, with a straight embryo in scanty albumen. — Shrubs 

 with opposite pinnately compound leaves, both stipulate and stipellate. 



5. Staphylea. Lobes of the colored calyx and pettls 5, erect. Stamens 5. Fruit a 3- 



cellcd bladdery-inflated pod. * 



1. ^SCULUS, L. IIoRSE-CHESTNCT. Bdckeye. 



Calyx tubular, .'i-lobed, often obliciue or gibbons at base. Petals 4 - 5, more 

 or less unequal, with claws, nearly hypogynous. Stamons 7 (rarely or 8) ; 



