181 



THE FLORA 



Order XLI. SAPINDACEJS. Indian Soapworts. 



Plants of various habit, mostly with uusymmetrical flowers; 

 8ej>als and j>etals both imbricated in the bud ; 

 stamens 5 to 10, inserted on a thick disk under the ovary ; 

 '^ruit usually colored and showy, lobed, 1 or few-seeded. 



The Order includes the foUowino: three Tribes. 



§ 1. 



The Buckeye Tribe. 



a Petals unequal. Stamens 7. 



Analysis of the Genera. 



Leaves opposite, carpels 2-ovaled....a 



Leaves digitate. BucJceye. uEs'culus. 



The Soapberry Tribe. Leaves alternate. Carpels 1-ovuled b 



b Trees, with pinnate-leaves and fruit with soapy pulp, covering a 



large seed. Stamens 8-10. South. Soapwort. Sapin'dus. 



b Herbs climbing with tendrils. Leaves biternate. Fruit a large, 



inflated, 3-carpeled pod. Balloon-vine. Cardiosper'mdm. 



^ 3. The Bladder-nut Tribe. Leaves opposite, pinnate. 



Staphyle'a. 2 



^JD^ 



Fig 434. Braiichlet of Bladder-nut, with 2 

 tornate leaves and a hanging cyme. 435. The 

 stamens and pistil enlarged. 436. A. flower of 

 Ohio Buckeye. 



1. ^S'CULUS. Buckeye. 



Calyx 5-toothed. Corolla of 4 or 5 unequal petals. Stamens 7, distinct, 

 unequal. Style filiform. Ovary 3-celled, with 2 ovules in each cell, bu 

 only 1 of the 6 ovules grows, becoming a large seed. Flowers in terminal 

 panicles. 



