440 Flora of the Malayan Peninsula. 
pairs slightly prominent on both surfaces, nearly straight at first, 
joined near the margin by somewhat angular loops; transverse 
nervules irregular, reticulate and much branched, enclosing the areo- 
late reticulation ; petiole short, about 5 mm. long; stipules lanceo- 
late, oblique. Spikes up to about 17 cm. long & or androgynous, 
slender, grey puberulous, solitary and axillary or in sparse few-branched 
terminal panicles; rhachises slender, angled, bracts linear falcate, 
about 5 mm. long; bracteoles minute, ovate-acute. Flowers: 3 in 
elongate clusters of usually 3—4, rarely solitary, perianth cup-shaped , 
very short, lobes 6, minute, incurved; stamens 12, filaments slender, 
anthers small; pistillode round, white-villous: 2 notseen. Fruits 
usually solitary in spikes, about 10—12 cm. long with very stout 
rough rhachises; pedicel 0; cupules when young embracing nearly 
half the acrorn, when mature only its base, saucer-shaped or flat, 
thick, the margins incurved, 2°5—3:5 cm. in diam. 6—7 mm. deep ; 
lamelle about 8—10, the lower ones broad and thick, the upper 
gradually narrower, all minutely tomentose, slightly undulate 
on the margins; acorns hemispheric or somewhat ovoid, glabrous 
except just round the umbo, shining, the base with wide circular 
intruded attachment, 1:55—2°5 cm. in diam., 1:5 cm. high: umbo 
small conical. Quercus Omalokos, Korth. Verh. Nat. Gesch. Bot. 214 
(1839—42); Blume Mus. Bot. Lugd..Bat: I. 301; Mig. Fl. Ind. 
Bat. I. i. 860 and Ann. Mus. Lugd.-Bat. I. 112; A. DC. Prodr. 
XVI. ii. 92; Wenzig in Jahrb. Bot. Gart. Berl. IV. 231; Hook 
f, Fl. Br. Ind. V. 614; King Ann. Cale. II. 70, t. 23 B. Cyclobalanus 
Omalokos, Oerst. in Kjoeb. Vidensk. Meddel. 80 (1866). 
PgeRAxK: in dense forest on the hills up to 1200 m. alt., Goping, 
Thaiping, etc. King’s Collector 5950!, 6901!, 8194!, 8447!; Scorte- 
chini!. Matacca: at Sungei Hudang, Derry 583!; Goodenough 
1227 !.—Distris. Sumatra (Korthals/). Vern ‘ Mempenung putih’ 
Ridley. 
23. Pasania LuciIDA, Gamble. A large tree reaching a height 
of 24—30 m. or more with 60—90 cm. in diam. of stem, branches 
spreading ; branchlets stout, glabrous, dark purplish-brown to nearly 
black when dry with scattered elongate lenticels, prominently angled 
and usually furnished with raised lines decurrent from the leaf-axils ; 
bud-scales ovate-acuminate more or less persistent. Leaves rigidly 
coriaceous; cuneately oblanceolate or oblong, obtusely rounded 
or emarginate at apex, acuminate or long-cuneate at base; both 
surfaces glabrous and shining, dark green when fresh, reddish- 
