8 A FIND A CEA E . 243 



or of 4-5 sepals, usually imbricate. Petals 4-5, sometimes 0, 

 generally with scales or tufts of hair above the claw. Disk 

 annular or unilateral, rarely (in $ flowers) 0, usually lobed. 

 Stamens 5-10, usually 8, usually inserted inside the disk or, in 

 zygomorphic flowers, behind it, rarely outside ; filaments free, 

 often villous. Ovary usually of 3 carpels, 3-celled, often 3-lobed ; 

 ovules generally 1, sometimes 2, in each cell. Fruit capsular or 

 indehiscent, entire or lobed, sometimes winged. Seeds with or 

 without arils, usually more or less globose ; albumen ; embryo 

 with normally curved or convolute cotyledons. 



Stamens inserted inside the disk, sometimes unilateral : 

 Flowers irregular, zygomorphic ; disk usually unilateral: 



Climbing herbs with biternate leaves, the leaflets dentate ; fruit 



a membranous inflated capsule 1. Cardiospermum. 



Erect shrubs or trees : 



Sepals 4, in opposite pairs ; leaves 1 - or 3-foliolate, the leaflets 

 usually serrate ; fruit indehiscent, 1-2-lobed seeds with a 



short aril, cotyledons folded 2. Allophylus. 



Sepals o, imbricate ; leaflets entire : 



Loaves paripimiate ; fruit 3-celled, not lobed ; seeds without 



aril, cotyledons superposed 3. Lepisanthes. 



Leaves imparipinnate ; fruit 1-3-lobed ; seeds without aril, 



cotyledons thick 4. Erioglossum. 



Flowers regular ; disk annular : 



Ovules solitary ; fruit not inflated, indehiscent, carpels dru- 

 paceous : 



Fruit entire : 



Petals ; leaves paripinnate, the rhacliis not winged, 

 leaflets usually 3 pairs, broad ; oviiles erect ; seeds arillate, 



cotyledons conduplicate 5. Schleichera. 



Petals 5 ; leaves imparipinnate, the rhachis winged, leaflets 

 (5-8 pairs, narrow ; ovules pendulous ; seeds without aril, 



cotyledons much crumpled 6. Filicium. 



Fruit lobed ; leaves paripinnate : 

 Drupes smooth : 



Drupes globose or ovoid, united at sides, sometimes later 

 on separating ; leaves with 2-3 pairs of thick leaflets 



7. Sapindus. 



Drupes oblong, united at base and diverging : 

 Leaves large, with usually 3-5 pairs of long lanceolate 

 leaflets ; seeds arillate 8. Thraulococcus. 



