748 CXXII. EUPHORBIACEH (HUTCHINSON). [ Croton. 
entire; female pedicels 1} lin. 
jong. : é ° . 6. C. somalensis. 
Leaves 23-3} in. long, mostly 
minutely denticulate; female 
pedicels $ in. long or more . 7%. C. integrifolius. 
Leaves membranous, nearly glabrous 
or thinly pubescent below; ra- 
cemes slender and lax-flowered. 
Leaves quite glabrous above ; pedi- 
cels glabrous : . 8. C. Dybowskit. 
Leaves pubescent above ; pedicels 
hai 
Leaves ‘without glands at the 
base; stamens 10. . 9. C. membranaceus. 
Leaves with stipitate glands at ane 
the base; stamens about 13 10. C. madandensis. 
Leaves deeply cordate and digitately 
5-7-nerved at the base; seed long- 
villous or subsetose . . 11. C, niloticus. 
ttPetals present and well developed in the female 
flowers. 
Young leaves quite glabrous above. 
Racemes much abbreviated, giving the 
flowers a clustered appearance ; leaves 
subverticillate . ; ‘ . 12. C. pseudopulchellus. 
Racemes more or less elongated ; leaves 
not or scarcely verticillate. ee 
Leaves acutely acuminate ; petals oblong 13. C. amabilis. 
Leaves mostly emarginate ; petals more a 
or legs ovate z . 14. C. zambesicus. 
Young leaves minutely stellate- puberulous, 
pubescent or tomentose on the upper 
surface. 
Styles once divided, short and serie enes 
to the top of the ovary. . 15. C. Mubango. 
Styles 4-6 times divided, ascending. 
Fruits 14-13 in. long . ; . . 16. C. megalocarpus- 
Fruits about 4 in. long : . . 27. ©, oligandram. 
**Leaves toothed or rarely shortly lobed. 
Leaves very coarsely dentate or lobately toothed. 
Leaves ‘coarsely and ner dentate with . 
numerous teeth . 618°C; De resilient 
Leaves shortly 5-lobed or . coarsely 5-toothed . 19. C. jatrophoides. 
Leaves denticulate, serrulate, serrate or crenate- 
serrate. 
Racemes unisexual. 
Leaves villous or tomentose below, especially 
when young. 
Leaves gradually and acutely long-acumi- 
nate; stamens 20-25 : 220. °C. megalobotrys- 
Leaves shortly and obtusely acuminate ; ne 
stamens about 16. - B1. ¢. Seinors 
Leaves glabrous or shortly pubescent below. 
tLeaves shortly pubescent below. 
Leaves obtuse or rounded at the base ; ar 
fruits ellipsoid, 3 in. long, not lobed 22. C. aspert rifo 
