748 



CXXII. EUPHORBIACEiE (hUTCHINSON). 



[Croton» 



10. 



entire ; female pedicels 1 J lin. 



long 



Leaves 2^-3^ in. long, mostly 

 minutely denticulate; female 

 pedicels ^ in. long or more 

 Leaves membranous, nearly glabrous 

 or thinly pubescent below ; ra- 

 cemes slender and lax-flowered. 

 Leaves quite glabrous above ; pedi- 

 cels glabrous 

 Leaves pubescent above ; pedicels 

 hairy. 

 Leaves without glands at the 



base ; stamens 10 



Leaves with stipitate glands at 



the base ; stamens about 13 



Leaves deeply cordate and digitately 



5— 7-nerved at the base ; ovary long- 



villous or subsetose .... 



tfPetals present and well developed in the female 

 tiowers. 

 Young leaves quite glabrous above. 



Racemes much abbreviated, giving the 

 tiowers a clustered appearance; leaves 

 subverticillate ..... 



Racemes more or less elongated ; leaves 

 not or scarcely verticillate. 

 Leaves acutely acuminate ; petals oblong 13 

 Leaves mostly euiarginate ; petals more 

 or less ovate 

 Young leaves minutely stellate-puberulous, 

 pubescent or tomentose on the upper 

 surface. 

 Styles once divided, short and adpressed 



to the top of the ovary 

 Styles 4-6 times divided, ascending. 



Fruits 1^-1^ in. long .... 



Fruits about ^ in. long 

 ** Leaves toothed or rarely shortly lobed. 



Leaves very coarsely dentate or lobately toothed. 

 Leaves coarsely and doubly dentate with 

 numerous teeth ...... 



Leaves shortly 5-lobed or coarsely 5-toothed 

 Leaves denticulate, serrulate, serrate or crenate- 

 serrate. 

 Racemes unisexual. 



Leaves villous or tomentose below, especially 

 when young. 

 Leaves gradually and acutely long-acumi- 



6. C. somalensis. 



7. C. integrifolius. 



8. C. Dybowskii. 



. 14. 



C. memhranaceu^. 

 C. madandensis. 



11. C. niloHcvs. 



12. C. pseudopulchellus. 



C. amabilis. 

 C. zamhesicHS. 



15. C. Muhango. 



16. 

 17. 



18. 

 19. 



C. megalocarpus, 

 C. oligandrum. 



C. Draconopsis. 

 C. jatrophoides. 



20. 



21. 



C. megalohofrys, 

 C. Seineri. 



nate; stamens 20-25 

 Leaves shortly and obtusely acuminate 

 stamens about 16 . . . 



Leaves glabrous or shortly pubescent below. 

 fLeavcs shortly pubescent below. 



Leaves obtuse or rounded at the base ; 



fruits ellipsoid, ^ in. long, not lobed 22. C. asperifoliiis. 



