476 Flora of the Malayan Peninsula. 
connective not produced; styles short 
and simple or stigmas sessile. 
Stamens not arising from a distinct 
clavate receptacle ar .. 52. MACARANGA. 
Stamens arising from a distinct cla- 
vate receptacle .. a .. 53. ENDOSPERMUM. 
j’. Staminal filaments repeatedly 
branched .. Ea .- Subtribe III, Ricininae. 
Flowers monoecious; 2 calyx spathi- 
form ; leaves palmately lobed .. .. 54. RIcINuUs. 
Flowers dioecious; ? calyx not spathi- 
form ; leaves not palmate ice .. 55. HomMonota. 
, 
e’. o& calyx imbricate in bud 
or obsolete. 
- f. Inflorescence of axillary 
or leaf-opposed clusters, 
seldom of axillary racemi- 
form panicles; disk or 
glands in both sexes or at 
least in the 2 .. Tribe IX, GELONIEAE. 
g. Staminal filaments united with base of 
conspicuous pistillode. . 40 .. 56. CHAETOCARPUS. 
g’. Stamens free ; pistillode 0 or very small 
Flowers dioecious ; clusters leaf-opposed 57. GELONIUM. 
Flowers monoecious; clusters or pan- 
icles axillary os ae .. 58. BALIOSPERMUM. 
}’. Flowers in 1-sexual or 2- 
sexual usually glanduli- 
ferous axillary or terminal 
spikes, racemes or pan- 
icles; disk 0 .. .. Tribe X, HIPPOMANEAE. 
g. Erect shrubs or trees. 
h. & calyx laterally compressed, of 2 
sepals. 
Racemes axillary ; stamens 12-15 .. 59, PimELEODENDRON. 
Racemes terminal; stamens 6 or fewer 60. HoMALANTHUS. 
h’. & calyx not compressed, usually 3- 
lobed. 
Flowers dioecious ; inflorescence lateral 61. ExcorcarRta. 
Flowers monoecious ; inflorescence ter- 
minal .. ate Ai .- 62. SAPIUM. 
gia Auhetbinne. ae ae .. 63. SEBASTIANIA. 
a’. Flowers of both sexes clustere 
within calyx like involucres, 
each cluster consisting of several 
o flowers—reduced to stipitate 
stamens—surrounding a central 
solitary ¢ flower reduced to a 
stipitate 3-carpellary pistil; the 
i ey 
