Flora of the Malayan Peninsula. 
Leaves simple, not lobed ; racemes without 
conspicuous involucral bracts; 2 sepals not 
lacerate or pinnatifid oir 
Leaves 3-foliolate or lobed; flower heads 
with conspicuous involucral bracts; @ se- 
pals lacerate or. pinnatifid 56 - 36. 
d’, Erect shrubs or trees. 
e. Flowers in 2-3-chotomous cymes; staminodes 
in § flowers AG a SOM 
e’. Flowers in l-or 2-sexual axillary or terminal 
spikes, racemes or panicles or 2 flowers 
solitary ; staminodes 0. 
j. Stamens not exceeding 20, usually fewer. 
g. Anther cells diverging upwards from the 
base. 
h. Cells not flexuous or vermiform . 38. 
h’. Cells flexuous or vermiform, very 
minute. 3c 58 - 39. 
g’. Cells not diverging from the base. 
h. o& calyx compressed, of 2 sepals. 
Racemes axillary, eglandular; sta- 
mens 12-15... ae . 59: 
Racemes terminal, glandular; sta- 
mens 6-10 oe 56 so GU: 
h’. # calyx not compressed, usually 3- 
lobed. 
7. Stamens 2-3, 
Inflorescence lateral .. co (ll 
Inflorescence terminal .. so GZ 
7’. Stamens more than 4, 
k. Glandsin # flowers .. . 58 
k’. Glands 0 in & flowers. 
1. Pistillode 0 .. Sc .. 41 
1’. Pistillode present. 
Staminal fils. dilated ; cells pendu- 
lous or divergent downwards; ? 
sepals not alternating with thick 
scales ae oe . 40. 
Filaments not dilated; cells pa- 
rallel; 2 sepals alternating with 
thick scales. . a6 .. 42. 
7’. Stamens numerous. 
g. Filaments branched; cells distant .. 54. 
g’. Filaments not branched; cells not dis- 
tant. ; 
h. Cells unequal, in superposed pairs on 
a broad produced connective so SL 
. 30. 
PLUKENETIA. 
DALECHAMPIA. 
ELATERIOSPERMUM, 
Micrococca. 
ACALYPHA. 
PIMELEODENDRON. 
HoMALANTHUS. 
. EXCOECARIA. 
. SAPIUM. 
. BALIOSPERMUM. 
. ALCHORNEA. 
CoELODEPAS. 
EPIPRINUS. 
RICINUS. 
PrycHOPYXIS. 
479 
