LX\. RUBIACE^ (hTERN), 35 



Anthers not conni vent, dehiscing latomlly. Fruit usually 

 «lehiscing regularly, rarely indehiscent. 

 Calyx-lobes unequal or limb oblique. 

 Capsule loeulicidal. 



Corolla-throat bearded. Capsule-valves persistent 9. Pentas. 

 Corolla-throat glabrous. One valve of the capsule 



deciduous 10. Vieecta. 



Fruit dicoccous. 



Inflorescence spicate. Calyx-limb not obliquely 



dilated, but one lobe elongated 11. Otomeeia. 



Inflorescence corymbose. Calyx-limb obliquely 



dilated 12. Dirichletia. 



Calyx-lobes equal or nearly so. 



Style filiform, sub-entire or with short linear branches. 

 Weeds numerous. Stipules ovate or truncate, usually 



setose or bicuspidate 13. Oldenlandia, 



Style branches spathulate. Seeds few. Stipules 



lanceolate, not truncate 14. Hekistocabpa. 



IV. MuSSiENDEJE. 



Inflorescence terminal , . 15. Muss^nda. 



Inflorescence axillary, rarely axillary and terminal. 

 Inflorescence not enclosed in bracts. 



Ovary 2-celled. Flowers minute 16. Pauridiantha. 



Ovary 3-6-celled (rarely 2-celled in doubtful species of 

 Sabicea). Flowers not minute. 



Calyx-teeth minute or small 17. Urophyllum. 



Calyx-lobes not small, nor petiolate 18. Sabicea. 



Calyx-segments some or all soon foliaceous and 

 petiolate. 

 Stipules miiltified. Calyx-segments more or less 



unequal 19. Temnoptrryx. 



Stipules entire or cleft. Calyx-segments more or 



less equal 20. Pentaloncha. 



Inflorescence enclosed in one or two campanulate or eon- 



nate'bracts i 21. Stipularia. 



V. Hamelie^. 



Corolla imbricated in the bud. Stipules small, subulate, 

 two together (except Heinsia benguelensis). Flowers 

 rather large. Inflorescence not elongated 22. Heinsia. 



Corolla contorted in the bud (or in Bertiera breviflora some- 

 times imbricated). Stipules lanceolate or oblong, not 

 small, solitary between each leaf, often connate at the 

 base. Flowers rather small. Inflorescence elongated or 

 with elongated branches 23. Bektiera. 



VI. Gabdeniejb. 



Inflorescence terminal or terminating short lateral 

 branches. 

 Ovary completely 2-celled. 



Calyx lobes contorted in the same direction as the 

 corolla-lobes in the bud. Style branched above. 

 Anther cells divided into small compartments by 



longitudinal and numerous transverse septa . . 24. Dictyanura. 

 Anthers not oo -locellate 25. Leptactima. 



