I90 Cxxviii. euphorbiace^e. [ Cleistanthus . 
base acute; nerves 4 to 6 pairs slender; 6 in. long, 2-1 in. wide; 
petioles -15 in. long. Heads on lateral branches *05 in. through. 
Bracts orbicular, hairy. Male flowers, sepals ovate, in females 
lanceolate acute. Petals in males spathulate, in females rounded. 
Disc in male pulvinate, in female tubular. Ovary hairy. Fruit 
glabrous, *3 in. long. Seed trigonous-ovoid brownish black, back 
convex, base blunt, tip acute. Hab. Singapore, Chan Chu Kang; 
Selitar (Ridley). Malacca (Maingay). 
(11) .C. heterophyllus Hook. fil. F.B.l. v. 276. C. laevis 
Hook. fil. l.c. 277* 
A small glabrous tree 30 ft. tall. Leaves coriaceous of two 
forms, the larger on the main branches elliptic to elliptic-lanceo¬ 
late caudate-acuminate, nerves prominent beneath 4 to 10 pairs; 
5 to 6 in. long, 2 to 3 in. wide; small leaves on flowering sprays 
lanceolate, -5 to 75 in. long, ’i to -2 in. wide; petioles of large 
leaves -25 in. long. Flowers minute on very small clusters on 
very slender axillary and terminal branchlets 3 to 6 in. long. 
Calyx-lobes ovate acute in male, blunt in female. Petals narrow. 
Disc urceolate in female. Ovary hairy with long erect hairs. Styles 
3 bifid. Fruit globose lobed, 1-35 in. long, pink, exocarp com¬ 
pletely separating. Seed ellipsoid brown, -25 in, long, keeled. Hab. 
Forests, rather scarce, Singapore, Changi; Bajau (Ridley); Botanic 
Gardens (Murton). Malacca (Maingay); Bukit Bruang (Curtis). 
Pulau Tiuman, Juara Bay (Burkill). Native name: Jarak Pipit. 
(12) C. gracilis Hook. fil. F.B.L v. 277. C. dasyphyllus 
Williams, Bull. Herb. Boiss. v. 31. 
A small bush about 4 ft. tall with very slender twigs. Leaves 
coriaceous elliptic caudate, base blunt, dark shining green, glauces- 
cent beneath; nerves about 3 pairs faint; 2 to 3 in. long, 75 to 
1*25 in. long; petioles *i in. long. Flowers few in small heads, 
male and female together. Calyx-lobes lanceolate. Petals in 
male minute linear, in female elliptic. Pistillode on stamen column 
hairy. Disc in female conoid. Capsule -5 in. long, glabrous. 
Seeds ovoid-oblong, back convex, keeled. Hab. Perak (Scortechini). 
Lankawi isles (Robinson); Kwah (Curtis). 
var. parvifolia', leaves elliptic-ovate, 1-5 in. long, *5 in. wide. 
Hab. Limestone rocks, Pahang, Kota Glanggi. Kedah (Kunstler). 
Lankawi, Kwah (Curtis). Perlis, Tebing Tinggi (Ridley). 
The small-leaved form is the commonest and forms an elegant little 
compact bush. Kunstler gives the Kedah plant as 15 to 25 ft. tall. The 
form from Kwah, the type of Williams’ C. dasyphyllus, is a round-leaved 
form with a very marked cusp. 
(13) C. siamensis Craib , Kew Bulletin, 1913, p. 71. C. penan- 
gensis Jabl. Pflanzenreich, l.c. 21. 
Shrub 6 to 15 ft. tall (Siam), branchlets red-tomentose. Leaves 
chartaceous lanceolate acuminate, base narrowed blunt; nerves 
8 pairs slender; 3 in. long, 1 in. wide (in Siamese specimens 6 in. 
