Cucurbitacede.'] CUCURBITACEAE. 527 



< flowers in racemes ; fruit fibrous, opening by a stopple 



at the apex; tendrils 2-5-fid 4. Luffa. 



$ flowers solitary or fascicled : 



Calyx-lobes subulate, entire, erect ; scaberulous herbs: 

 Pistillode ; tendrils bifid ; seeds pyriform, sur- 

 rounded by a thick crenulate ring ... 5. Bryonopsis. 

 Pistillode glandular; seeds compressed, usually 

 smooth : 



Connective produced ; tendrils simple... 6. Cucumis. 

 Connective not produced ; tendrils 2-3-fid 



7. Citrullus. 

 Calyx-lobes subfoliaceous, serrate, reflexed; tendrils 



2-fid; large hairy climber Benincasa. 



Corolla campanulate, 5-lobed to the middle or lower ; tendrils 

 usually simple : 



Filaments connate ; stigma 1, 3-lobed ; flowers white or yellow ; 

 slender climbing or prostrate herbs ; seeds compressed, margined, 



velvety or scrobiculate 8. Coccinia. 



Filaments free ; stigmas 3-5, bilobed ; flowers yellow, very 

 large ; large climbing hispid or hairy herbs ; seeds compressed 



Cucurbita. 

 Anther-cells straight or curved, not flexuose : 



Disk around the style annular or cupular; tendrils simple, rarely 

 bifid; seeds ovord or subglobose, smooth or rugose, usually 



compressed and margined 9. Melothr ia. 



Disk around the style or obscure ; tendrils simple : 

 Stamens inserted on the tube of the calyx : 



Petiole of leaf with a stipuliform bract; seeds rnarginate, 

 hollowed on one side, convex on the other ; connective of 



anthers not produced at apex 10. Blastania. 



Petiole of leaf not stipulate ; connective of anthers produced 

 at apex : 

 Fruit indehiscent ; seeds marginate, smooth 



11. Kedrostis. 

 Fruit circumsciss near the base; seeds appressed-pilose, 



not marginate, scarcely compressed 12. Corallocarpus. 



Stamens inserted on the mouth of the calyx-tube; fruit 

 depressed-globose ; seeds ovoid, smooth, marginate 



13. Cerasiocarpum. 

 Ovules pendulous : 



Leaves pedate with 3-5 leaflets ; tendrils simple ; seeds verrucose, 

 not winged ; slender climbers 14. Gynostemma. 



