1900,] G. King— Materials for a Flora of the Malayan Peninsula. 21 



23. S. heterostemon. 



Leaves of each pair similar in shape, but very unequal in 

 size or one quite suppressed. Stamens 6. Fruit as 

 in Eu-Sonerila (§ Sonerilopsis, Miq.) 

 Leaves of each pair very dissimilar in shape and size, one 

 very small and more or less rotundate or reniform- 

 cordate, often deciduous. Cymes usually from the axils 

 of the small leaves, hence often apparently leaf -opposed. 

 Anthers 3, oblong, obtuse, not over '15 in. long. Fruit 

 more or less turbinate or semiglobose, obscurely 

 trigonous, usually conspicuously' muricate ; valves not or 

 very slightly exceeding the margin of the mature calyx, 

 often not or indistinctly separating from each other at the 

 periphery, but each of them always splitting into 2 

 membranous teeth in the depressed centre of the fruit. 

 (§ Hexodon, Stapf) : — 



Cymes distinctly, densely and persistently bracteate, 

 distinctly and often long peduncled : — 



Cymes simple or 2 or more, sessile on a common 

 peduncle, forming a dense head : — 



Cymes simple, at length 1-1*6 in. long ; leaves 

 obliquely oblanceolate to obovate-oblong, 3-7 in. 

 by 1-15 in. : — 



Leaves fleshy, glabrous with the exception of 

 the minutely strigillose nerves of the underside ... 24. S. integrifolia. 

 Leaves membranous, with rather long and spread- 

 ing hairs beneath and along the margins 

 Cymes usually 2 or more, sessile on a common 

 peduncle, very short, gathered in a dense head ; 

 leaves obliquely obovate, elliptic or oblong, 4-6 in. 

 by 1-75-3 in. ... 

 Cymes usually 2 or more on a common peduncle, each 

 with a special peduncle, gathered in a loose umbel ; 

 leaves obliquely elliptic, 3-5 in. by l'75-2*75 in. ... 27. 8. caesia. 

 Cymes ebracteate, or indistinctly or deciduously bracteate : — 

 Cymes sessile or subsessile; peduncle, if any, less 

 than '5 in., when mature ; fruit muricate : — 

 Cymes dense, indistinctly bracteate, sessile : — 

 Bracts linear, usually minute, or suppressed ; 

 calyx pubescent ; leaves fleshy, firm when dry, 

 glabrous above, shortly and adpressedly pubes- 

 cent or tomeutose beneath 



Bracts filiform, ciliate, hidden among long spread- 

 ing hairs ; calyx shaggy ; leaves membranous, 

 very hairy on both sides 

 Cymes subsessile somewhat loose, ebracteate or 

 deciduously bracteate : — 



Leaves obliquely obovate-lanceolate to oblong, 

 2*5-6 in. by 1-25 in. :— 



Leaves somewhat fleshy, firm, when dry with 

 conspicuous transverse veins ; pedicels very 



25. 5. Iracteata. 



26. 8. capitata. 



28. 8. Nidular 



29. S, hrachyantha. 



