SAPENDACE^. (SOAPBERRY FAMILY.) 115 



3. AMPELOPSIS, Miclix. Virginian Creeper. 



Calyx slightly 5-toothed. Petals concave, thick, expanding before thev fall. 

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

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

 walls by dilated sucker-like disks at their tips. (Name from &fnre\os, a vine, 

 and u\l/Ls, appearance.) 



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

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

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

 October. Also called American Ivy, and still less appropriately, Woodbine. 

 Leaves turning bright crimson in autumn. 



Order 29. SAPIXDACE^. (Soapberry Family.) 



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

 and often irreyular flowers ; the 4-5 sepals and petals indjricated in (Esti- 

 vation ; the 5-10 stamens inserted on ajleshy (peri(jynous or hypogynous) 

 disk; a 2-3-celled and -lobed ovary, with 1-2 (^rarely inore) ovules in 

 each cell ; and the embryo (except Staphylea) curved or convolute, with- 

 out albumen. — A large and diverse order. 



SuBORDKR L Sapindeae. Flowers (often polygamous) mostly un- 

 symmetrical and irregular. Stamens commonly more numerous than the 

 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 sti|)ules, mostly compound. 



1. .iSsculus* Flowers irregular. Calyx 5-lobed. Petals 4 or 5. Stamens commouly 7. 



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



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



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



Suborder II. Acerinetie. (Maple Family.) Flowers (polyga- 

 mous or dioecious) 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 i)olyganious. Leaves simjile. 



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



Suborder III. Stapliyleae. (Bladder-Xut 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 caljTC and petals 5, erect. .'Jtamens 5. Fruit a 3- 



celled bladdery-inflated pod. 



1. .^SCULUS, L. HoRSE-CHESTNCT. Buckeye. 



Calyx tubular, 5-lobed, often oblique or gibbous at base. Petals 4-5, more 

 or less unequal, with claws, nearly hypogynous. Stamens 7 (rarely 6 or 8) ; 



