448 Flora of the Malayan Peninsula. 
hairs, base very concave, umbo conical. Quercus discocarpa, Hance 
in Journ.-Bot. for 1874, 242; Hook. f. Fl. Br. Ind. V. 616; King 
Ann. Calc. II. 76, t. 70. Castanopsis discocarpa, Hance in Journ. 
Bot. for 1878, 201. 
PENANG : at Penara Bukit, 300 m. alt., Curtis 1155!. Perak: 
in open hilly forest at 250—450 m. alt., Larut, King’s Coilector 
5482!; at Gunong Bubu, Scortechint 841!.—Distris. Bangka 
(Teysmann), Borneo (Haller). 
31. PASANIA ACUMINATISSIMA, Oerst. in Kjoeb. Vidensk. Meddel. 
84 (1866). A tree up to 25 m. in height and 1°5 m. in diam. of 
stem; branchlets nearly black, lenticellate, slender, the youngest 
minutely puberulous ; leaf-buds globose with 2—3 subulate scales 
at base. Leaves coriaceous, lanceolate or ovate-lanceolate, long 
acuminate at apex the acumen somewhat obtuse, acute or somewhat 
rounded and often unequal at base; upper surface when dry ashy- 
grey, shining, glabrous, lower surface reddish-brown, glabrous or 
minutely rufous-pubescent ; margin entire or the upper half coarsely 
serrate, the serrations at the ends of the main nerves, usually 
reflexed when dry; 4—12 cm. long, 2—3°5 cm. broad; midrib 
slender, very slightly impressed above; main nerves 8—11 pairs, 
prominent beneath ; transverse nervules many, subprominent, enclos- 
ing the areolate minute reticulation ; petiole 5—19 mm. long, some- 
what flattened. Spikes from the axils of the upper leaves, erect, 
solitary but paniculately arranged: ¢@ very slender, almost filiform, 
slightly puberulous, under 5 cm. long; bracteoles ovate-acuminate 
glabrous except the villous tip, 1—1:5 mm. long: 2 stouter up to 
6 cm. long; bracteoles as in ¢. Flowers: ¢& solitary in the axils 
of the bracteoles ; perianth-lobes free, much imbricate, orbicular, 
nearly 1 mm. in diam., the margins ciliate; stamens 10—12 or more, 
filaments very short, anthers rather large; pistillode villous with 
1—2 rudimentary ovaries and stigmas embedded in the hairs: 2 
also solitary, distant, the cupule scaly ; perianth-lobes as in ¢ but 
smaller ; stamens sometimes present ; styles 2—3, spreading, sub- 
clavate. Fruits in spikes up to about 10 cm. long, rhachises like 
the branchlets ; cupules (immature) obliquely ovoid, closely envelop- 
ing the whole acorn except the umbo, minutely fulvous-puberulous 
without, villous within, bearing 4—4 rather oblique rings of stout 
sharp erect or recurved tubercular spines ; 15—20 mm. long, 10—12 
mm. in daim.; acorn ovoid-apiculate, flattened on one side; umbo 
rounded. @Q. acuminatissima, A. DC. Prodr. XVI. ii. 102 (1869) ; 
