432 Flora of the Malayan Peninsula. 
12, filaments slender, anthers ovate, small, minutely apiculate; pistil- 
lode large, very villous, whitish when dry. Fruits in spikes up 
to 25 cm. long with a stout rhachis; pedicel much thickened, 0—7 
mm. long, annulate; cupules very thin, when young enclosing nearly 
the whole acorn, when mature saucer-shaped embracing only the lower 
third of the acorn, minutely grey-tomentose, 2—2°5 cm. in diam., 
5—6 mm. deep; lamellae about 7—10, fairly distinct, usually entire ; 
acorn hemispheric or ovoid-conic about 2 cm. in diam. and 1°5 
em. high, truncate and intruded at base, glabrous except close 
under the umbo which is sharp and conical. Quercus Hwyckii, 
Korth. in Verh. Nat. Gesch. Bot. 212, t. 46 (1839-42). Bl. in Mus. 
Bot. Lugd.-Bat. I 300; A. DC. Prodr. XVI. ii. 94; Wenzig in 
Jahrb. Bot. Gart. Berl. IV. 230; King Ann. Calc. II. 68, t. 62 A. 
Cyclobalanus Hwyckii, Oerst. in Kjoeb. Vidensk. Meddel. XLVITI. 80. 
Perak : in open forest on low hills at 150—250 m. alt. King’s 
Collector 7846!. Singapore: at Bukit Timah, Goodenough 396!. 
—Distris. Sumatra (Korthals !). 
Var. latifolia, King in Ann. Calc. II. 68, t.62 B. Leaves charta- 
ceous, elliptic ovate, more shortly and obtusely caudate accuminate, 
transverse nervules not quite so close or so straight ; cupules thicker, 
the lamellae denticulate; acorn longer, up to 2 cm., densely grey- 
sericeous-pubescent. Hook. f. Fl. Br. Ind. V. 614 (acorn described 
as glabrous). 
PERAK: in open forest in rocky places near Thaipeng up to 
250 m. alt., King’s Collector 8532!. Siyeaprore: at Bukit Timah, 
Ridley 5117! 
When in leaf only this species can easily be mistaken for P. Lamponga. 
15. PASANIA CYRTORHYNCHA, Gamble. A large tree reaching 
a height of 18—24 m. and 60—90 cm. in diam. of stem; branches 
spreading ; branchlets stout, with smooth shining pale grey bark 
and scattered lenticels, innovations scaly, grey-puberulous as also 
the inflorescence, youngest leaves blackish when dry as are the buds 
and bud-scales. Leaves chartaceous; elliptic or elliptic-oblong, 
abruptly shortly (under 1 cm.) obtusely caudate-acuminate at apex, 
rounded or sometimes cuneate at base ; upper surface glabrous, not 
shining, reddish-brown when dry, lower pale and covered especially 
when young with very minute grey stellate pubescence; margin 
entire ; 12—22 cm. long 6—10 cm. broad; midrib stout, raised on 
both surfaces ; main nerves 10—15 pairs, slightly curved to about 
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