244 FLORA OF MADRAS. [Cardiospefmunl* 



Leaves small, sometimes bif oliolate ; seeds without aril 



9. Aphania. 



Drupes tubercled or muricate ; seeds with a thick fleshy aril 



10. Nephelium. 



Ovules 2 in each cell; fruit a large inflated, 2-lobed capsule; 

 leaves paripinnate with 2-4 pairs of membranous leaflets 



11. Harpullia. 



Stamens inserted outside the disk when present ; petals ; ovules 2 in 

 each cell ; fruit a membranous winged capsule ; leaves simple, shining, 

 oblanceolate , 12. Dodonaea. 



1. Cardiospermum, Linn. 



Climbing tendril-bearing herbs with wiry stems and branches. 

 Leaves alternate, biternate ; leaflets coarsely dentate. Flowers 

 irregular, polygamo-dioecious, in axillary racemes or corymbs, 

 the lowest pair of pedicels transformed into spiral tendrils. 

 Sepals 4, concave, the outer pair small, the inner large. Petals 

 4, in 2 pairs, the two upper near the stamens with a supra-basal 

 scale, the two lower remote from the stamens with a crested 

 inflexed appendage. Disk unilateral, of 2 glands opposite to the 

 lower petals. Stamens 8, excentric ; filaments unequal, free or 

 connate below. Ovary 3-celled ; style short, 3-fid, the segments 

 bearing inner stigmatic surfaces ; ovule 1 in each cell. Fruit a 

 membranous, inflated, trigonous capsule, loculicidally 3-valved 

 the valves reticulate. Seeds globose, usually with a conspicuous 

 hilum at the base; testa crustaceous; cotyledons large, trans- 

 versely conduplicate. 



Capsules depressed, pyriform, winged at the angles ; leaves nearly 

 glabrous, leaflets acuminate at apex ; flowers small ; seeds black with 



a large, white, heart-shaped hilum 1. Halicacabum. 



Capsules at -first ovate acute, afterwards globose, not winged ; leaves 

 pubescent, leaflets usually obtuse, the end one mucronate ; flowers 

 moderate-sized ; seeds black with a small, orbicular, slightly emargi- 

 nate hilum 2 canescens. 



1. CARDIOSPERMUM HALICACABUM, Liim; F. B. I. i. 670; 

 W.&A. 109; Wt. Ic. t. 508. 



N". Circars and Carnatic, along the whole Coromandel 

 Coast from G-anjam to Tinnevelly ; West Coast, in Malabar 

 and Travancore. 

 The capsules are sometimes small (var. microcarpum, Bl.). 



