478 Flora of the Malayan Peninsula. 
flowers—reduced to stipitate stamens—surrounding 
a central solitary 2 reduced to a stipitate 3-car- 
pellary ovary; the whole superficially resembling 
a ¢ flower with a gamosepalous calyx .. 
b’. Flowers of different sexes not clustered within 
calyxlike involucres but separate and with a single 
or double perianth. 
c. o& flowers at least petaliferous, usually also the 
2 ; petals sometimes very minute in 2. 
d. Staminal filaments free. 
e. 3 flowers on hairlike pedicels from axillary 
conicules of minute imbricate bracts; pis- 
tillode capillary ; & sepals foliaceous a3 
e’. o& flowers not on hairlike pedicels from 
axillary conicules; pistillode 0; 2 sepals not 
foliaceous. 
f. Junction of lamina and petiole eglandular 
/’. Junction of lamina and petiole prominently 
2-glandular. 
Inflorescence of terminal 2-3-chotomous 
cymes; fruitalarge drupe .. a0 
Inflorescence of terminal androgynous 
spikes or racemes ; fruit a capsule tee 
d’. Inner or all staminal filaments connate to 
form a central column. 
e. Leaves +— orbicular, often lobed; flowers 
in terminal dichotomous cymes; stamens nu- 
merous 50 a0 : 
e’. Leaves lanceolate, entire ; flowers in axillary 
or terminal spikes or racemes or in axillary or 
lateral clusters ; stamens 3-10. 
Flowers and fruits in axillary or terminal 
spikes or racemes; pistillode0.. 
Flowers and fruits in axillary or lateral 
clusters; pistillode 3-cleft, surmounting 
staminal column .. a6 
c. Both ~ and ? flowers apetalous. 
d. Twining plants. 
e. o& calyx 3-lobed ; stamens 3. 
Plant densely villose; racemes androgy- 
nous; stamens alternisepalous; disk 0; 2? 
calyx of 3 sepals; stigma not larger than 
ovary = 50 ore , 
Plant almost glabrous or only pubescent; 
racemes l-sexual; stamens central; disk 
lining # calyx; 2 calyx of 5sepals; stig- 
ma larger than ovary ne 
e’, & calyx 4-6-lobed; stamens 8-30. 
..- 64. 
31. 
22. 
26. 
. 23. 
. 28. 
om Pll 
. 33. 
34. 
EUPHORBIA.. 
ERISMANTHUS:;. 
. OSTODES. 
ALEURITES. 
CROTON. 
JATROPHA. 
TRIGONOSTEMON.. 
TRIGONOPLEURA.. 
CNESMONE. 
MEGISTOSTIGMA. 
