Trichosanthes.] Citcurbitacece. 243 



Stam. 3 (sometimes 5) ; fern. fl. solitary. 

 Anth.-cells conduplicate or sigmoid. 



Pet. strongly fimbriate 1. Trichosanthes. 



Pet. (or cor. -lobes) not fimbriate . 



Cal.-tube of male fl. long, tubular . . 2. Gymnopetalum. 

 Cal.-tube of male fl. short, campanulate. 

 Anth. more or less connate. 



Cor. campanulate, cut about half way 



down 3. Cephalandra. 



Cor. cut nearly to the base. 



Fruit tubercled 4. Momordica. 



Fruit smooth 5. Cucumis. 



Anth. distinct. 



Male fl. in racemes . . . .6. Luffa. 

 Male fl. solitary or in clusters. 



Fruit with hard pericarp . . .7. ClTRULLUS. 

 Fruit a soft berry . . . .8. Bryonia. 

 Anth.-cells straight or slightly curved. 

 Fruit globose or ovoid, not beaked. 



Male fl. in clusters . . . .9. Mukia. 

 Male fl. in racemes 

 Fruit beaked, indehiscent. 



Fruit glabrous .... 

 Fruit very hairy 

 Fruit beaked, dehiscent round the base. 

 Fruit depressed, not beaked. 



Depressed-globose, seeds 3-6 . 

 Depressed-turbinate, seeds 1-2 

 Stam. 5 ; fern. fl. in racemes or panicles. 

 L. compound 



L. simple 



10. Zehneria. 



11. Melothria. 



12. Rhynchocarpa. 



13. corallocarpus. 



14. Cerasiocarpum. 



15. Ctenolepis. 



16. Gynostemma. 



17. Zanonia. 



1. TRICHOSANTHES, L. 



Annual or perennial, tendrils branched or simple, 1. pal- 

 mately lobed or entire, fl. dioecious, rarely monoecious, male 

 usually in racemes (rarely solitary), fern, solitary ; cal.-tube 

 very long, segm. large or small, pet. distinct or nearly so, 

 fimbriate ; male fl. : — stam. 3, inserted in cal.-tube, fil. short, 

 anth. connate, linear-oblong, cells conduplicate; fern. fl. : — 

 ov. with numerous horizontal or pendulous ovules on 3 parietal 

 placentas, style simple, stigmas 3 ; fruit large, globose or 

 narrow, red; seeds numerous, compressed, each enclosed in an 

 envelope of coloured pulp. — Sp. 40 (Cogn.); 12 in Fl. B. Ind. 



Male fl. with large sheathing bracts . . . 1. T. palmata. 

 Male fl. without or with very small bracts. 

 Male fl. in racemes. 



L. much longer than broad . . . . 2. T. NERVi folia. 



L. broader than long 3. T. CUCUM ERINA 



Male fl. solitary 4. T. INTEGRI FOLIA. 



