192 
cxxvjii. euphorbiace^e. 
[ Cleistanthus. 
(17) C. macrophyllus Hook. fil. F.B.I. v. 278. 
Tree; branchlets stout glabrous. Leaves thin coriaceous, 
oblong-obovate shortly cuspidate, base narrowed; nerves 7 pairs, 
slender elevate beneath; 6 to 7 in. long, 3-25 to 4*25 in. wide; 
petioles *i in. long. Flowers sessile in small clusters. Male flowers 
pedicelled glabrous. Sepals lanceolate. Petals clawed sub-quad¬ 
rate toothed. Disc lining the calyx smooth. Female flowers, 
sepals ovate coriaceous. Petals sub-quadrate crenate. Disc 
crenulate with an erect toothed tube at length 5-cleft. Styles 
3 bifid, arms flabellate. Capsule *3 in. long, brown rounded, on 
a short stout pedicel -25 in. long. Hab. Forests, Kranji; Bukit 
Timah (Ridley). Perak (Scortechini); Goping (Kunstler). 
(18) C. sumatranus Mull. Arg. in DC. Prodr. xv. (2), 504; 
Jabl. Pflanzenreich, 13, Fig. 2, A to e. 
Shrub or small tree quite glabrous. Leaves thinly coriaceous 
elliptic cuspidate-acuminate, base acute; nerves faint 3 to 4 pairs; 
4 in. long, 175 in. wide; petioles -12 in. long. Flowers in small 
heads under *i in. across on slender branches with smaller leaves. 
Bracts ovate glabrous or pilose on backs. Calyx-lobes lanceolate 
acute glabrous. Petals cuneate-spathulate. Disc in female cylin- 
dric. Ovary pilose. Styles 3, bifid. Capsule 3-lobed, sparsely 
pilose in the grooves, *3 in. long. Hab. Johor, Pinerong (Cantley). 
Distrib. Malay islands. 
(19) C. lanuginosus Jabl. Pflanzenreich, lx. 26, Fig. 3, /. 
Branches densely red-tomentose, rather stout. Leaves oblong- 
lanceolate acuminate, base gradually narrowed, glaucous beneath, 
thinly coriaceous glabrous; nerves 8 pairs slender elevate, nervules 
conspicuous beneath irregular; 9 in. long, 275 in. wide; petioles 
•2 in. long, red-tomentose. Stipules lanceolate setaceous at tips, 
•25 in. long, glabrous, persistent. Heads woolly-tomentose, white, 
•4 in. through. Bracts lanceolate acute ciliate, woolly on the back. 
Male flowers shortly pedicelled. Calyx-lobes lanceolate quite 
woolly outside. Petals rhomboid. Disc adnate to receptacle. 
Female flowers, calyx-lobes triangular acute. Petals ovate 
denticulate. Disc urceolate. Ovary pilose. Capsule unknown. 
Hab. Malacca, Mt. Ophir (Hullett), very rare. 
(20) C. hirsutulus Hook. fil. F.B.I. v. 278. 
Tree 30 to 40 ft. tall, branches spreading, stem 6 to 10 in. 
through; branchlets velvety. Leaves chartaceous obovate-oblong, 
caudate, base round, beneath pubescent and glaucous; nerves 
11 to 15 pairs; 4 to 7 in. long, 1 to 1-5 in. wide; petioles very 
short. Stipules setaceous. Flowers in small clusters minute 
cream-colour. Calyx villous, -i in. wide, lobes ovate. Petals in 
male bifid or flabellate crenate. Disc pulvinate crenulate, in 
female glabrous tubular. Capsule sessile deeply 3-lobed pubescent, 
•5 in. long, red. Hab. Forests, Singapore, Bukit Timah. Malacca, 
Bukit Kandang (Cantley). Pahang, Kwala Tenok (Ridley). 
