98 
scrables D. alatus, Roxb. ; but its flowers are shorter, the leaves are 
more broadly ovate, and have rounded or cordate, not cuneate, bases, 
while the pubescence of the lower surface is paler and more uniform 
aud the young branchlets and leaf-buds are stouter. Moreover the 
accrescent lobes of the calyx are longer and nearly twice as 
broad : the 5 wings of the calyx-tube are also broader. Roxburgh's 
description of his species D. incanus is very brief ; he left no drawing 
of it at Calcutta ; and no authentic specimens of his own naming" 
appear to exist. It is therefore impossible to decide with absolute 
certainty what Roxburgh's D. incantis is. At Kew Mr. T)yer accepts 
Kurz's Pegu specimen No. 2109 as belonging to it, and the specimens 
recently brought from the S. Andaman by my collectors agree with 
thai number of K ur/'s, 
13. DiPTEROCAEtPiis alatus, Roxb. Hort. Beng. 42; Fl. Ind. II 014. 
A tree 80 to 125 feet high : young branches terete, rather stout, softly 
and minutely pubescent; the buds narrow, rufous-sericeous. Leaves coria- 
ceous, ovate-elliptic, the apex acute, the base cuneate, the edges undu- 
late *. upper surface glabrous except the minutely tomentose nerves and 
mklrib ; lower sparsely and minutely stellate-pubescent, the 10 to 14 
pairs of oblique rather straight prominent main nerves densely tomen- 
tose ; length 5 to 8 in., breadth 275 to 4'5 in. ; petiole 1 to 1*5 in , 
pubescent s stipules sericeous -pubescent. Faniclen 6- or 7-flowered. 
Flowers about 1*5 in. long. Calyx-tube ob-conic, 5-winged, stellate-pubes- 
cent, as are the linear-oblong petals. Fruit globose, 1 in. in diam., 
puberulous, 5-winged from base to apex ; the wings glabrous, thin and 
about -5 in broad ; the 2 accrescent lobes of the calyx linear-oblong, 
obtuse, glabrous, much reticulate, 3-nerved in the lower half, 4*5 in. 
long and '7 or '8 in. broad : the 3 unenlarged lobes obtuse. Wall. Cat. 
953 : A. DC. Prod. XVI. 2, 6tl in part s Dyer in Hook. fil. Fl. Br. Ind. 
I, 298 ; Journ. Bot, 1874, p. 106 (excl. syn. D. cwtatns, Gaertn.) Kurz 
For. Flora Burm. L 116; Pierre Flore Forest. Coch-Chine, t. 212. 
Oleocciflon bahannferiim Wall. Cat p. 157, 
Burmah : Wallich, Brandis, Heifer No. 730, Kurz. Andnmaus ? 
Giertner's figure and description of his V. costatus are confined to 
the fruit only. The former is that of a Dipterocarpus with the elongat- 
ed calyx-lobes of _D. alatus, Roxb., but with the 5 wings on the tube of 
the calyx very narrow, whereas those of Koxburgh's D. alatus are 
very broad. Dyer (F. B. I. i, 298) expresses his belief that Gaertner's 
figure is a bad representation of D. alatus, Roxb., and he reduces 
Gaertner's D. costaius to Roxburgh's D. alatus. M. De Candolle, on the 
other hand, retains X>. costatus, Gaertn. as a good species and in 
this he is followed by Kurz ; but Messrs. Dyer and De Candolle agree 
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