254 SAPINDACE.E. Sapfndus. 



the ovary : filaments distinct or very slightly united at the base : an- 

 thers introrse (the pistil of tlic staminate flowers either rudimentary 

 or entirely wanting). Ovary comppsed of 3 (rarely 2-5) united car- 

 pels : styles partly or completely united : ovules solitary in each cell, 

 erect or ascending ; sometimes 2, the upper one ascending, the lower 

 suspended ; rarely 3 or more. Fruit 2-3-ceiled, capsular, vesicular, 

 or samaroid, or frequently fleshy and indehiscent. Seeds 1-3 in each 

 cell, usually arilled, without albumen. Embryo rarely straight ; the 

 cotyledons usually incumbent on the radicle, or spirally convolute, some- 

 times combined into a thick mass. — Trees, or tendril-bearing shrubs 

 or herbs. Leaves alternate, usually compound and exstipulate, often 

 marked with pellucid lines or dots. Flowers small. 



Tribe I. SAPINDE^. Camh. 

 Ovary with one ovule in each cell. Embryo curved, rarely straight. 



1. CARDIOSPERMUM. Linn.; GcBrln. fr. t.l9. 



Sepals 4 ; the two outer ones smallest. Petals 4 ; the two lateral ones usu- 

 ally adhering to the sepals, each with an emarginate scale above the base ; 

 the two lower ones remote from the stamens, their scales furnished with a 

 glandular crest at the extremity, and ending in an inflexed appendage beneath 

 the apex. Glands of the disk 2, round or linear, opposite the lower petals. 

 Stamens 8, the four nearest the glands shorter than the others. Style trifid, 

 stigraatose on the inside. Fruit a membranous bladdery capsule, composed 

 of 3 carpels united at the axis. Seeds globose, on a thick funiculus, which 

 is usually expanded at the base into a 2-lobed aril; the hilum broad and cor- 

 date. — Climbing herbs. Leaves 2-ternate. Peduncles axillary, racemose at 

 the apex; the lowest pair of pedicels changed into tendrils. 



1. C. Halicac ahum (hinn.): annual, nearly glabrous ; leaflets ovate-lan- 

 ceolate, incisely lobed and toothed ; fruit large, roundish-pyriforni. — Lam. ill. 

 t. 317 ; Nutt. gen. 1. p. 251 ; Torr.! in ann. lye. Neii' -York., 2. p. 172. 



On the Missouri and its branches, Dr. James ! Texas, Drummond ! 

 Native. Cultivated occasionally, but hardly naturalized, in the Atlantic 

 States. 



2. SAPINDUS. Linn.; Lam. ill. i. 307. 



Sepals 4-5 ; two of them exterior. Petals as many as the sepals, or one of 

 them abortive, glandular or bearded within, or with a scale above the claw. 

 Disk fleshy, entire or crenulate-lobed. Stamens 8-10, inserted between the 

 margin of the disk and the ovary. Styles connivcnt or combined : stigmas 

 3. Fruit composed of 2-3 globose fleshy connate carpels, one or two of 

 which are usually abortive. Seed large, spherical, sohtary in each carpel ; 

 testa (endocarp, Kunth, Camh.) crustaceous: aril none.^ — Trees. Leaves 

 exstipulate, abruptly pinnate, or unequally pinnate by the abortion of one of 



