SAPINDACEAE. 251 



Seeds globose or compressed; embryo mainly convolute; endosperm none. 

 About 125 genera, including over 1,000 species, widely distributed in 

 tropical and warm regions. 



Vines ; mostly climbing by tendrils. 



Fruit 3-winged. 1. Serjania. 



Fruit bladdery. 2. Cardiospennum. 



Shrubs and trees. 



Fruit samarold. 3. Thyana. 



Fruit drupaceous. 



Inflorescence spicate-paniculate or racemose-paniculate. 



Leaves 1-3-foliolate ; flowers irregular. 4. Allophylus. 



Leaves evenly pinnate ; flowers regular. g. MeUcocca. 



Inflorescence corymbose-paniculate. 



Ovary 2-celled ; leaves evenly pinnate. 6. Exothea. 



Ovary 3-celled ; leaves trifoliolate. 7. Hypelate. 



1. SERJANIA Plum.; Solmni. Skr. Natur. Selsk. Kjoeb. 3": 125. 1794. 



Woody vines, with alternate petioled, mostly biternately compound leaves, 

 and small polygamous white or yellowish flowers, in axillary racemes or 

 panicles, which often bear tendrils. Sepals 5, imbricated. Petals 4, with small 

 scales between. Disk undulate or sometimes glanduUferous. Stamens 8, the 

 filaments sometimes united at the base. Ovary 3-celled; styles partly united; 

 stigmas 3, small ; ovules 1 in each cavity. Fruit of 3 samaras' attached by their 

 backs, each bearing a seed near the apex. [Commemorates Paul Sergeant.] 

 About 175 species, of tropical and subtropical America. Type species: Serjania 

 sinuata (L.) Schum. 



Leaflets strongly reticulate-veined, few-toothed or entire ; seed not 



enclosed in the wing. 1. S. subdentata. 



Leaflets not strongly reticulate-veined, dentate ; seed encloseu in 



the wing. 2. 8. diversifolia. 



1. Serjania subdentata Juss. ; Poir. in Lam. Encyel. 5: 102. 1804. 



Climbing on trees or shrubs, sometimes 7 m. long, usually shorter; young 

 twigs suleate, glabrous, or sparingly pubescent. Leaflets elliptic to oblong- 

 lanceolate or ovate, coriaceous, 3-8 cm. long, mostly acute or acuminate at the, 

 apex, narrowed or rounded at i the base, sharply dentate with few or several 

 teeth, shining above ; panicles commonly longer than the leaves, puberulent ; 

 pedicels 2-5 mm. long; petals obovate, about 4 mm. long; fruit 1.2-2 cm. long, 

 the seeds not enclosed in the ends of the samara-wings. 



Rocky coppices, scrub-lands and thickets, Andros, Mangrove Cay, New Provi- 

 dence, Eleuthera, Cat Island, Bum Cay, Great Guana Cay and Great Exuma : — Cuba. 

 Referred by Hitchcock to S. paniculaita H.B.K. Fowl-foot. 



2. Serjania diversifdlia (Jacq.) Radlk. Mon. Serj. 136. 1875. 



Paullinia diversifolia Jacq. Enum. 36. 1760. 



Slender, often high-climbing on trees, sometimes 10 m. long, the young 

 twigs puberulent. Leaflets ovate to obovate, 3-8 cm. long, coriaceous, acute or 

 obtuse, few-toothed near the apex or entire, shining above, dull beneath; panicles 

 puberulent, commonly longer than the subtending leaves'; pedicels 5-8 mm. 

 long; petals oblong-obovate, about 5 mm. long; fruit rather broadly ovate, 1.5-2 

 cm. long, the seeds enclosed in the upper part of the samara-wings. 



Thickets and scrub-lands. Green Turtle Cay, Andros, New Providence, Eleu- 

 thera, Cat Island, Watling's and Long Island : — Cuba ; Hispaniola. Referred by 

 Hitchcock to S. lucida Sebum, and recorded by Schoepf as Paullinia Seriana L. 

 Fowl-foot. 



