86 SAPIXDACE.K. (SOAI'-BEUKY FAMIIA'.) 



3. SAPINDUS, L. SoAP-itKitKv. 



Culvx r)-])iirtetl, tleciduous. I'otals 5, regular, with a scale at the base of 

 each within. Staineus 8-10, inserted on the hvpogynous disk. .Styles 

 united. Stigmas 3. Ovary 3-celled, the cells 1-ovuled. Fruit liaccate, glo- 

 bose or 2-3-lol)ed, 1 -3-seeded. Seeds bony. Embryo incurved. — 'I'rees, 

 with abruptly pinnate leaves, and small polygamous flowers iu axillary or 

 terminal racemes or panicles. 



1. S. marginatus, Wild. Petioles wingless; leaflets 9- 18, opposite or 

 alternate, ovatc-laiict-ohite, unequal-sided, strongly veined above; i)anicles 

 large, dense-flowered ; fruit glol)ose. — Georgia and Florida, near the coast, 

 and westward. — A tree 20*^-40° high. Flowers white. 



2. S. Saponaria, L. Petioles broadly winged ; leaflets 6 or 8, nearly 

 opposite, rather rigid, oblong, obtuse, mostly equal-sided, pubescent beneath; 

 panicle tomentose, canesceut ; fruit globose. — Coast of South Florida. — 

 A small tree. 



4. CARDIOSPEEMUM, L. 



Sepals 4, the 2 outer cues much shorter. Petals 4, irregular, each with a 

 petal-like scale at the base within; those of the 2 outer petals entire, the 

 others with a crested ajjpeudage on the inner edge. Stamens 8. Disk 2- 

 glandular. Cells of the ovary 1-ovuled. Style 3-cleft. Capsule 3-angled, 

 3-celled, loculicidally 3-valved, inflated. Seed furnished with a cordate aril. 



— Herbs, cliinl>ing by tendrils. Leaves biternate. 



1. C. Halicacabum, L. — South Florida, aj^pareutly native, and not 

 uncommon in cultivation. — Annual. Stem slender. Leaflets ovate-lanceo- 

 late, incisely lol)ed and toothed. Capsule pear-shaped, 1' iu diameter 



5. .ffiSCULUS, L. HoRSECHESTNUT.. Buckeye 



Calyx 5-lobed, unequal. Petals 4-5, unequal, clawed. Stamens 5-8, 

 usually 7, inserted on the aunnlar hypogynous disk. Style slender. Ovary 

 3-celled, the cells 2-ovuled. Capsule coriaceous, 1 -3-celled, loculicidally 2-3- 

 valved, 1 -3-seeded. Cotyledons very large and thick, partly luiited. — Trees 

 or shrubs, with opposite long-petioled digitate leaves, and showy polygamous 

 flowers, in terminal panicles. 



§ 1. JEsciJLUs proper. — Fruit pricUy. 



1. J^. glabra, Willd. Stamens almost twice the length of the erect 

 nearly equal pale yellow petals ; panicle oldong-ovate, loosely flowered ; leaf- 

 lets 5, oval or oblong, acuminate, unequally serrulate, smooth or slightly pu- 

 bescent beneath. (yE. pallida. Will'/.) — Banks of rivers, Tennessee. May 



- June. — A small tree with rough strong-scented bark. Flowers small. 



§2. Pavia. — Fruit smooth. 



2. .Si. Pavia, L. Stamens slightly exserted ; claws of the two upper 

 petals as long as the tubular calyx ; panicle oblong ; leaflets 5, varying from 

 lanceolate to oval, short-acuminate, finely serrate, smooth, or nearly so, on 

 both surfaces. — Rich soil. March - May. — A shrub, or iu the upper districts 

 a small tree. Flowers red. 



