216 FLORA OF MADRAS. [RHamnaceae. 



rarely 0, inserted on the throat of the calyx-tube and shorter than 

 its lobes, cucullate, often clawed. Disk fleshy and filling the 

 calyx-tube or membranous and lining it, glabrous or tomentose. 

 Stamens as many as and opposite to the petals, often enclosed 

 within them ; anthers 2-celled, dehiscing longitudinally, rarely 

 laterally. Ovary sessile, free or immersed in the disk, 3- rarely 

 2- or 4-celled ; style short, simple or 2-4-lobed ; stigmas terminal, 

 usually capitate. Fruit superior or inferior, 3-, rarely 4-celled, 

 free or girt more or less by the adnate calyx-tube, capsular or a 

 dry or fleshy drupe, sometimes winged. Seeds solitary in each 

 cell, erect, usually compressed ; albumen fleshy, scanty or rarely 

 ; embryo large, the cotyledons flat. 



Fruit superior or only partly enclosed in the calyx-tube : 



Fruit 1-seeded, the style enlarged in a linear- oblong wing ; un- 

 armed climbing shrubs ; seeds exalbuminous 1. Yentilago. 



Fruit a dry or fleshy drupe with 1-4- seeded stone ; armed or 

 unarmed trees or shrubs with 3-5-ribbed leaves ; seeds with scanty 



albumen or none 2. Zizyphus. 



Fruit baccate with 2-4 pyrenes ; seeds albuminous, the albumen 

 often thin: 



Disk thin, lining the calyx-tube ; trees or shrubs usually un- 

 armed, leaves alternate 3. Rhamnus. 



Disk fleshy, filling the calyx-tube ; leaves opposite or sub- 

 opposite : 



Glabrous shrub with many sharp hooked thorns and small 

 coriaceous shining leaves ; flowers in axillary fascicles or 



umbels... 4. Scutia. 



Straggling, more or less pubescent, shrubs with few but often 

 large thorns ; leaves rather large, chartaceous ; flowers in 



spicate panicles 5 Sageretia. 



Fruit when ripe capsular ; leaves alternate ; unarmed, erect or 

 sarmentose shrubs; flowers in short axillary cymes... 6. Golubrina. 

 Fruit inferior, crowned with the persistent calyx ; climbing shrubs 

 with tendrils : 



Fruit of 3 winged indehiscent mericarps ; flowers in spikes or 



racemes; disk lobed between the stamens 7. Gouania. 



Fruit of 3 ovoid dehiscent cocci ; flowers in axillary pedunculate 

 umbels; disk merely angular 8. Helinus. 



