18 LXXV. RUBiACEJB. (J. D. Hooker.) 



** Ovaries free or nearly so ; fruits free, capsular. 



Flowers bracteolate, calyx-limb 5-lobed, corolla-lobes valvate 4. ADINA. 



Flowers bracteolate, calyx-limb entire? corolla-lobes valvate 5. STEPHEGYNE. 



Flowers ebracteolate, corolla-lobes imbricate 6. NAUCLEA. 



Flowers ebracteolate, corolla-lobes valvate, climbers with 



hooked peduncles 7. UNCARIA. 



TRIBE II. Cinchoneae. Corolla-lobes valvate, imbricate, or twisted in 

 bud. Fruit capsular, 2-celled. Seeds winged. 



Corolla-lobes valvate, style 2-fid, bracts leafy 8. HYMENOPOGON. 



Corolla-lobes twisted, style entire, flowers panicled, bracts 



simple 9. COPTOSAPELTA. 



Corolla-lobes valvate, style entire, flowers in panicled spikes, 



bracts leafy 10. HYMENODICTYON. 



Corolla-lobes imbricate, style 2-fid 11. LTJCULIA. 



TRIBE III. Hondeletiere. Corolla-lobes (in the Asiatic genera) twisted 

 in bud. Fruit capsular, 2-celled. Seeds angled, net winged. Shrubs or trees. 



Flowers simply panicled 12. WENDLANDIA. 



Flowers in subscorpioid cymes 13. GREENIA. 



TRIBE IV. Kedyotideae. Corolla-lobes valvate in bud. Fruit a locu- 

 licidal or septicidal 2- rarely 4-celled capsule, or of 2 or 4 dehiscent or indehis- 

 cent cocci, rarely altogether indehiscent. Seeds small or minute, rarely winged. 

 Herbs, rarely shrubs, never trees. 



A. Leaves quite entire, stamens 4 or 5. 

 * Fruit 2-celled, usually indehiscent, stipules entire. 



Corolla funnel-shaped, lobes 4-5-toothed 14. DENTKT.I.A. 



Corolla rotate, anthers large, stigma capitellate . . . .15. AKGOSTEMMA. 



Corolla funnel-shaped, stigma minute 16. CLARKKLLA. 



Corolla rotate, anthers connate, stigmas 2 17. NEUROCALIX. 



** Fruit 4-celled, indehiscent, cells with 1 erect ovule. 



Fruit with 4 bony indehiscent pyrenes ; stigmas 4 . . . .18. ALL^OPHANIA. 

 Fruit membranous, indehiscent, stigmas 2 19. FERGUSONIA. 



*** Fruit oblong subglobose or orbicular, 2- rarely 4-celled, usually dehiscent, 

 cells many- rarely l-seeded. 



Capsule loculi- or septicidal, rarely indehiscent, with con- 

 tiguous calyx-teeth, seeds usually angular 20. HEDYOTIS. 



Capsule loculi ciial above the remote calyx-teeth, rarely 



indehiscent, seeds minute, angular .21. OLDKXLANDIA. 



Capsu'e loculicidal above the remote calyx-teeth, rarely 

 indehiscent, seeds plano-convex, or globose with a ventral 

 cavity . 22. ANOTIS. ( * 



Capsule f-ubglobose loculicidal, strongly ribbed, seeds minute 



angular, flowers in secund cymes 23. SPIKADICLIS. 



Capsule globose septicidal, seeds minute angular, flowers 

 crowded in the short recurved distant branches of an erect 

 peduncle 24. POLYDRA. 



**** Fruit broadly didymously obcordate, of 2 compressed spreading lobes, 

 loculicidal above the calyx. 



