Croton. | 
Leaves mostly cordate at the base; 
fruits subglobose, 4 in. long, tri- 
obed . = : 
t}¢Leaves glabrous below or rarely with a 
few scattered hairs on the nerves. 
Leaves broadly rounded and subcordate 
at the base, scarcely 14 times as long 
as broad; male inflorescence many- 
flowered, about 6 in. long 
Leaves slightly narrowed to an obtuse 
base, more than twice as long as 
broad; male inflorescence few- 
flowered, 23 in. long or iess . . 35. 
Racemes bisexual. 
Petals present in both sexes. 
Leaves grey-tomentellous below 
Leaves glabrous or rarely with few hairs on 
both surfaces. 
Leaves oblong or oblong-elliptic, obtuse 
and not or only slightly acuminate ; 
petiole about 4 in. long : 
Leaves ovate, acuminate ; petiole 3-14 
in. long. 
Leaves 5-6 in. long, slightly toothed 
Leaves 14-3} in. long, rather coarsely 
crenate-serrate . ‘ G24 
Petals absent from the female flowers or 
very rudimentary. 
Leaves woolly-tomentose or very densely 
pubescent below, especially when 
young. 
Leaves small and subentire, 1-2 in. 
long . 3. 
Leaves distinctly spdihed: 2-5hi in. Jong. 
Styles twice bilobed $ é 
Styles once bilobed. 
Female flowers confined to the lower 
part of the inflorescence, not 
mixed with the males. 
Leaves minutely and _ closely 
denticulate ; female flowers 
2 2G, 
leng-pedlicellate |. es 
Leaves serrate; female flowers 
sessile or subsessile 
Female flowers scattered amongst 
the males 
Leaves thinly pubescent or r glabrous below. 
Stamens 10-12. 
Leaves more or less rounded atthe base; 
petioles 1}-3 in. long; styles 
comnate «tt the base for 4-4 their 
length. 
Leaves remotely serrulate; male 
buds glabrous except at the 
tips ; female flowers each in the 
middle of a cluster of males . 31. 
. 38. 
5 BL 
- 29, 
= 3U. 
_OXXII, EUPHORBIACE® (HUTCHINSON). 
C. macrostachys. 
C. dispar. 
C. nigritanus. 
. C. Pogget. 
C. alienus. 
. C. bukobensis. 
C. Gossweileri. 
C. polytrichus, 
C. Gubouga. 
C. integrifolius. 
C. barotsensis. 
C. leuconeurus, 
C. Pynertii, 
