Sapindus. ■ SAPINDACE^. 443 



Willd. Spec. ii. 465; Benth. PI. Hartw. 15 ; Radlk. Monogr. Serj. 264. — Rio Grande, Mex. 

 J. Eights, and throughout Mexico. The specimen collected by Eaton & Edwards at Mon- 

 terey and ascribed to this species by Dr. Gray (PI. Wright, i. 38) appears to be S. macro- 

 cocca, Radlk. 



-)- -i- Seeds nearly or quite filling the cells ; these of firmer texture. 

 S. brachycarpa, Gray. Closely related to the preceding but with leaflets mostly smaller 

 (6 to 10 lines long), thicker, and more densely tomentose beneath : racemes in flower not an 

 inch in length, in fruit somewhat more elongated : fruit 5 or 6 lines long, fully as broad at 

 the deeply cordate base. — Gray in Radlk. Monogr. Serj. 259. — Corpus Christi Bay, S. 

 Texas, Palmer. (Northern Mex. at Victoria, Tamaulipas, where first coll. by Berlandier.) 



6. CARDIOSPERMUM, L. (KapSm, heart, and o-Tripfia, seed.) — 

 Slender herbaceous or (in warm countries) slightly woody climbers with or with- 

 out tendrils. Leaves alternate, biternate ; leaflets usually incised. Peduncles 

 usually bearing two short recurving tendrils near the umbelliform clusters of 

 small slender-pedicelled flowers. — Syst. Nat. ed. 1, & Gen. no. 332; Gaertn. 

 Fruct. i. t. 79 ; Lam. 111. t. 317 ; Gray, Gen. 111. ii. 215, t. 181 ; Benth. & Hook. 

 Gen. i. 393; Radlk. Sitzungsb. Kgl. Bayer. Akad. 1878, 260, & in Engl. & 

 Prantl, Nat. Pflanzenf. iii. Ab. 5,306. — A small but' rather confused genus ; 

 the commoner species widely distributed and often cultivated. 



C. Halicacabum, L- (Balloon Vine, Heartseed.) A graceful herbaceous climber 

 with annual root, slender angulate-furrowed stem and smoothish or moderately pubescent 

 leaves : leaflets more or less di.stinctly petiolulate and cut-toothed : petals whitish, about 2 

 lines long : upper glands of the disk short-oblong, transverse : fruit subglobose or somewhat 

 obovate, rather large, usually an inch to inch and half in diameter ; seeds glabrous, black, 

 but marked with a conspicuous white heart-shaped scar. — Spec. i. 366 ; Michx. Fl. i. 242 ; 

 Torr. & Gray, Fl. i. 254 ; Gray, 1. c. ; Chapm. Fl. 79. — Preferring moist soil and climbing 

 over low shrubbery ; Gulf States from E. Florida, where spontaneous about dwellings, 

 Curtiss, and S. Florida, where apparently indigenous (ace. to Chapman), west to Texas, 

 where certainly so ; fl. and fr. throughout summer and autumn. (Mex., S. Am., Afr., E. Ind.) 

 Often cultivated. The southwestern form is somewhat more pubescent and has leaflets of 

 slightly firmer texture, thus showing some transition to 



C. Corindum, L. Perennial, suffrutescent at base : leaves and stems soft-tomentose : 

 upper glands of the disk short, oblong, somewhat obliquel}' placed : seeds with semicircular 

 rather than heart-shaped scar. — Spec. ed. 2, i. 526 ; Kadlk. Sitzungsb. Kgl. Bayer. Akad. 

 1878, 261. C. molle, HBK. Nov. Gen. & Spec. v. 103 ; Coulter, Contrib. U. S. Nat. Herb. i. 

 33, & ii. 65. — Common in Mexico, at Tamaulipas, Berlandier, &c., and W. Texas, Presidio 

 County, and mountains west of Pecos (ace. to Coulter, 11. cc). 



C microcarpuna, HBK. With habit of C. Halicacabum, but sometimes a little woody 

 toward the base : flowers minute : petals a line or less in length : fruit depre.ssed-obovoid, 

 8 to 10 lines in diameter ; seeds with a broad lunate rather than heart-shaped scar. — Nov. 

 Gen. & Spec. v. 104; Griseb. Fl. W. Ind. 122. C. Halicacabum, \a,T. microcarpum, Bl. Rum- 

 phia, iii. 185 ; Radlk. 1. c. — Centr. and S. Florida, at Key West, Kur/el, and in clayey soil 

 of " hammocks," near Eustis, Nash. (W. Ind., S. Am., Afr., Pacif. Ids.) 



7. SAPINDUS, Tourn. (Sapo, soap, and Indus, Indian, from the quali- 

 ties of the W. Indian S. Saponaria, the soap-berry.) — Tropical and subtropical 

 trees and shrubs with yellow wood, alternate exstipitate abruptly (rarely odd) 

 pinnate leaves and small whitish flowers in lateral or terminal racemes or pan- 

 icles. Fruit baccate, usually of a single maturing carpel and globose or nearly 

 so, less frequently 2- or even 3-lobed through the development of one or both of 

 the other carpels ; seeds solitary in the carpels, large, nearly globose, exalbumi- 



