438 Fiora of the Malayan Peninsula. 
20. Pasanta HicuHuert, Gamble. A large tree reaching 24—30 
m. in height and 30—60 cm. in diam. of stem; branches spreading, 
crown sometimes low; branchiets stout, shining, with whitish-brown 
bark studded in places with large pale often elongate lenticels. 
Leaves thinly coriaceous; elliptic-oblong, oblong or oblong-lanceolate, 
caudate-acuminate at apex, acuminate at base; both surfaces dull 
and pale olive-brown when dry and covered, especially the lower, 
with very minute whitish pubescence; margins entire; 15—30 cm. 
long 5—8 cm. broad; midrib stout, prominent on both surfaces; 
main nerves 10—12 pairs, distant, prominent beneath, very oblique, 
starting at an angle of 35°—45° with the midrib, curving to and 
along the margin; transverse nervules irregular and indistinct 
as is the reticulation; petiole stout, 5—10 mm.long. Spikes up to 
15 cm. long, axillary or in few-branched terminal panicles, # @ or 
androgynous, sometimes with hermaphrodite flowers; rhachis much 
angled, grey-puberulous: bracteoles very small, ovate. Flowers: 3 
usually solitary; perianth nearly 2 mm. long, deeply cleft in 6 ovate 
acute puberulous lobes; stamens 12, filaments very long and slender, 
anthers small, ovate; pistillode smali, pale brown-villous: 2 also 
solitary, the cupule stout, perianth as in 3; styles 3, very long, 
subulate, spreading, pubescent: ¢ with rather smaller perianth. 
Fruits in spikes 10—20 cm. long with a-stout rhachis, pale and 
lenticellate like the branchlets; pedicels 0 or only 5 mm. long, stout; 
cupules thin with sharp edges, when young saucer-shaped and 
embracing one-half to nearly the whole of the acorn, when mature 
patelliform and nearly flat, 3—3-5 cm. in diam., and only embracing 
the base of the acorn, their edges free from it; lamellae 5—7, broad, 
flat, very minutely denticulate; acorn when young ovoid-conic 
with prominent umbo and the remains of the styles, minutely serice- 
ous, when mature flattened depressed—turbinate sparsely sericeous 
becoming glabrescent, reaching 3 cm. in diam. and 1'5 cm. high, 
the basal attachment rather small, about 1 cm. in diam.; umbo 
small. Quercus Hichleri, Wenzig. in Jahrb. Bot. Gart. Berl. IV. 236 
(1886); Hook f. Fl. Br. Ind. V. 615; King Ann. Cale. II. 72, 
t. 68. 
PsaRAK: onlow ground and up to about 500 m. alt. in dense 
forest, King’s Collector 3875!, 4043!, 5290! 5570!, 6630!, 7289!, 
7305!, 7384!, 8485!; at Assam Kumbong and Ralan Tujor, Wray 
2577! 2607!.—Distris: Sumatra (Forbes 3035!, 3183!, 3189!). 
Vern. ‘Mempenung jantan,’ ‘Mempenung Putih’ Ridley. 
