Flora of the Malayan Peninsula. 477 
whole superficially resembling 
a g gamosepalous flower .. Tribe XI, EUPHORBIEAE. 
64. EUPHORBIA. 
Excluded genus.—LoPHoPYXIs. 
KeEy To THE GENERA. 
For the case of a family like Euphorbiaceae the ideal would be to have 
three keys, one foundéd on male material, another on female material in flower 
and the third on material in fruit. Unfortunately the material so far available 
is not enough to allow of this ideal being attained. The present key is therefore 
of the nature of a makeshift and not a satisfactory one. Still it is hoped that 
in conjunction with the generic synopsis it may be of some use. Trigonopleura, 
Botryophora and Kunstlera are absent from the female section of the dioecious 
division, as the female plants of those genera are as yet unknown. - 
A. Flowers Monoecious. i 
a. Cells of ovary 2-ovuled. 
6. Flowers petaliferous ; petals usually minute. 
ce. Calyx lobes valvate ; staminal filaments united 
in ashortcentral column; $ disk with a coronal : . 
‘ 
annulus. 
Ovary 2-celled ete a .. 1. BRIDELIA. 
Ovary 3-celled oe aD .. 2. CLEISTANTHUS. 
ce’. Calyx lobes imbricate ; filaments free; 2 disk 
without a coronal annulus. 
Flowers rather large; disk a basal cup or 
ring; albumen scanty .. .. 3» ACTEPHILA. 
Flowerssmall; disk of separate sintde- albu- 
men copious .. ae ote -. 4, ANDRACHNE. 
6’. Flowers apetalous. 
c. Disk or glands in ¢ flowers and usually also in 
fen 
d. Disk or glands 0 in 9 flowers... .. 5. AGYNEIA. 
ad’. Disk or glands present in 2 flowers. 
Disk in ¢ and @ of fleshy minute scales or 
(but rarely in ) a crenulate or lobed ring or 
shallow cup.. 7. PHYLLANTHUS. 
Disk in ~ and 2 of iepar or ligule Stal: 
oid lobes .. 5 .. 8. PHYLLANTHODEN- 
e’. Disk or glands 0 in Bathe sexes. DRON. 
Sepals of both sexes spreading or ? calyx 
tubular and dentate... . 9. GLOCHIDION. 
¢ calyx turbinate or ehayeiionn, with thick- 
ened and crenulately inflected lobulate margin 10. BREYNTA. 
o ealyx compressed from above downwards 4 
and disciform with a minute central opening... 11. SAUROPUS. 
f. Cells of ovary l-ovuled. 
Flowers # and @ clustered within calyxlike 
involucres, each containing several to many ¢ 
