Flora of the Malayan Peninsula. 507 
13. CLEISTANTHUS SIAMENSIS, Craib in Kew Bull. 71] (1913) 
shrub or small tree, 3—6 m. high. Branchlets dark brown, 2—3 
mm. thick, glabrescent; flowering twigs 1—2 mm. thick, grooved, + 
— shortly rusty or fulyvous pubescent ; internodes -5—3 cm. long. 
Lamine coriaceous, lanceolate, 4—16 cm. long, 1—4°5 cm. broad 
with acute or acuminate apex and obtusely cuneate base, concolo- 
rous, pale green-olivaceous ; upper surface shiny, reticulate, glabrous 
witha few minute hairs on base of midrib; lower surface dull, glab- 
rous or sparsely pubescent on the prominent nerves and midrib 
nerves 10—16, anastomosing near the margin; cross-nervules not 
distinguishable from the moderately close reticulation ; petiole sub- 
terete, sparsely puberulous or glabrescent, 2 mm. long, closely trans- 
versely wrinkled; stipules persistent, subulate aculeate, sparsely 
puberulous or glabrous, 5—6 mm. long. Flower-clusters 3—7 mm. in 
diam., of comparatively few flowers, ¢ and @ mixed; bracteoles 
ovate, subulate, carinate and hirsute on outer surface, glabrous on 
inner. <o flowers subglobose, sessile, 3 mm. long, entirely glabrous, 
sepals deltoid ; petals flabelliform, less than 1 mm. long, with irregul- 
arly crenulate or lacerate apical margin; disk lining the calyx cup 
sublobulate ; pistillode subtrigonously columnar, with 3-fid apex, ca- 
ducously scurfy-pubescent. 9 flowers globosely ovoid, sessile, 3— 
mm. long, with perianth as in the 3; disk subcrenulate; annulur 
very membranous, narrow, below the upper edge of the disk and 
closely adherent to inner surface of disk as to be scarcely distin- 
guishable; ovary subglobose, densely hirsute; styles free, slender 
short, terete glabrous, shortly bifid; stigmas subspathulately thick- 
ened. Capsule sessile, hirsute at base and apex and in the sulci 
otherwise glabrous or with only a few scattered hairs, reticulate 
7 mm. in vertical, 1 cm. in transverse diam. Seed not seen. Jabl. 
in Pflanzenreich, l.c. 23. C. penangensis Jabl. in Pflanzenreich, l.c. 
21. 
Penane: K.C. 1673!; Waterfall, C. 1481!; Penang Hill, R.!. 
Balik Pulau, R. 12730! 
Distris. Siam. 
The type sheet is K.C. 1673 in Kew Herbarium. The species has been con- 
fused with C. membranaceus, but differs from the latter in having coriaceous 
leaves not glaucous on lower surface but shiny on the upper, and in having 
larger flowers with different petals. 
14. CLEISTANTHUS PARVIFOLIUS, Hook. f., 281. A tree, 10— 
13 m. high, with spreading branches, glabrous on all the vegetative 
