Hemicyelia.] EUPHORBIACER. 365 
HEMICYCLIA, Weht. & Arn. 
Flowers dioecious. Calyx deeply 4- or 5-lobed, imbricate. 
Petals none. Disk concave, entire or crenate, encircling an ovary 
or nude. Stamens 8-25, free, inserted round the disk; anthers 
opening in 2 slits. Ovary 1-celled, with 2 ovules, the stigmas 
sessile or nearly so, almost discoid and turning reniform-2-lobed, 
deciduous. Drupes glabrous, more or less fleshy, the endocarp 
1-celled and 1-seeded. Albumen copious. Cotyledons fleshy mem- 
ranous, almost orbicular, the thin radicle 3 times longer.—Trees, 
with simple, alternate, usually rigid leaves. Stipules deciduous. 
Flowers small, clustered in the axils of the leaves. 
Putamen of drupe irregular, obliquely truncate on both sides on 
the apex, slightly keeled 5 ‘ : ‘ a ae . A. Sumatrana. 
Putamen regular, half-terete ‘ : P ; = S . H. Andamanica. 
1. H. Sumatrana, Muell. Arg.—An evergreen tree (80—50 
+ 15—20 + 3—4), all parts glabrous; bark 3-4 lin. thick, grey, 
lenticellate ; cut greenish, dryish ; leaves a little oblique and 
unequal at the base, lanceolate to oblong-lanceolate, acute at the 
base, on a 2-24 lin. long petiole, long but bluntish acuminate, 
repand-serrate, 3-4 in. long, thin-coriaceous and rigid, glabrous, 
glossy, elegantly but inconspicuously net-veined ; flowers small, 
yellowish green, on minutely puberulous strong pedicels about 2 lin. 
long, solitary or more usually by 2 or 3 in the axils of the leaves ; 
calyx minutely puberulous outside, the 4 lobes more than a line 
long ; ovary glabrous ; drupes somewhat compressed-ovoid, the size 
of a pea, smooth, the putamen obliquely truncate at the top and 
slightly keeled on the back. 
.—Not unfrequent in the swamp forests and in marshy oo along 
choungs in the tropical forests of the Irrawaddi alluvium and of Martaban.— 
Fl. March-Apr.—s.—SS.—=All. 
REMaRxKs.—Wood heavy, pale greyish brown, coarsely fibrous, but close- 
grained, soft. A fine wood. ; 
2. H, Andamanica, Kz—An evergreen tree (40—50 + 20— 
25+4—7), all parts glabrous ; leaves ovate-oblong to oblong- 
lanceolate, unequal at the rounded base, on a 2-3 lin. long petiole, 
slightly pubescent when young, caudate-acuminate, slightly repand- 
thin-coriaceous and rather rigid, 3-34 in. long, elegantly 
net-veined, glabrous ; flowers rather large, on minutely appressed- 
hairy pedicels 1-14 lin. long, solitary or by 2 in the axils of the 
leaves ; calyx minutely appressed-puberulous, the lobes concave- 
rotundate, the 2 inner ones of a thinner texture, about 2 lin. long ; 
mens numerous; drupes on a strong 2-3 lin. long peduncle 
