i?iK> xxv. DIPTEROCARPE^E. (W. T. Thiselton Dyer.) [Dipterocar^nin 



ovate obtuse sinuate-crenate, base rounded, fruit-wings 5 by 1 in. linear- 

 oblanceolate 1- or sub-3-nerved. A. DC. Piodr. xvi. -2, 608. 



MOII.MEJN and RANGOON-, Griffith, &c. ; ascending 3000 ft., Brandis. DISTRIB. Si.-nn. 



The compressed young branches, stipules and petioles densely hairy. Leaves 8-9* 

 b I ->.j in. , glabrous above, softly pubescent beneath, margins undulate sometimes 

 ci.iate, lateral nerves 12-14 pairs ; petioles 1-1 4 in. Cat i/.c tube in fruit l in. diam., 

 (impressed spheroidal, mouth contracted, sparsely hispid, at length glabrous, unenlarged 

 lobes cordiform. Xat silkily pubescent. Kngnu. Kan. In Indian specimens the mar- 

 gins of the leaves are smooth, in those from Siam, their upper surface is glabre.>cent. 

 A plant collected in Pegu by Kurz differs iti the stiffly -tomentose young parts, subobtuse 

 and acute fruit-wings. 



4. D. hispidus, Thti'iiiti-* Kmim. 33; leaves broadly elliptic-oblong 



shortly acuminate base slightly cordate sinuate-crenate, fruit-wings 6 by 

 1 ;, in. linear-obovate obtuse, principal nerve with 3-4 strong ascending 

 branches. A. DC. 1'roilr. xvi. -2, COS. 



('F.YLON; Saffragam District and Katnapoora. 



Young branches, stipnVs. petioles and the prominent reticulations on the under 

 surface of the leaves clothed with spreading rufous i'aseicled hairs. /. UV6i '< 12 by 

 3/,-7 inch. (2") by 11 on young trees), lateral nerves 15 2 1 pairs ; petiole 1 -21 in. (<;///./- 

 ttibe obeonic. densely puK.'sc nt, in fruit ovoid, ohseinvlv f)-angled. glabrese.ent. Nut 

 Mn'.ite, glabrescent. D. oblongiiblius, Thn\ Euinii. 33 (not of Blume). D. oblongus, 

 .1. IK\ Prodr. xvi. 2, o'us, is said by Thwaitcs to have smaller leaves, but app< 

 me in other respects indistinguishable. 



5. D. pilosus, Rn.rlt. IIrt. Jif/it/. 03; Ft. Ind. ii. 615 ; leaves elliptic- 

 o))long very shortly acuminate base acute or rounded margins with 

 fascicled cilia, "fruit-wings 6-81 by 1 ! -1 , ; in. linear-oblong retnse nsimlly 



iy 3-nerved glabrous. A. DC. /'/></ r. xvi. 2,614. 1). Ijaudii, Korth. 

 Nat. Gesc/i. Bot. 5!), t. 5 ; Kurz m Journ. As. tioc. c/<>/. Is7<>, ii. i;r, : 

 A. DC. Prodi: I.e. 00!). 



ASSAM, Urirfitk; PEGU and CHITTAGONO, Roxburgh, &c. ; ANDAMAN IHL., A 

 DISTKIH. Sumatra. 



I'ompressed young branches, stipules and petioles densely hairy. Leaves 6-18 by 

 '.} 12 in, glabrous above, sp.ninglv liairv on the reticulations beneath, lateral nerves 

 21 pairs; petiole \\'.\ in. ( 'til//., -tnhi- in fruit 2 in. long, ovoid or obovoid, glabrous, 

 n.oiilh not contracted, UDenlarged lolies orbicular. ^\nt densely jiube.-ei-nl . An As-;uu 

 vlant c..llocted by (i. Mann has identical fruits but leaves 7 by 4 in., elliptic, acute, 

 base rounded, minutely tawny-pubescent beneath. 



6. D. crinitus, Djier ; leaves obovate acute margins entire slightly 

 recurved when dried fringed with short fascicled hairs, fruit-wings 

 (immature) 3.| in. linear deltoid obtuse or acute 3-nerved. 



."MALACCA, Mn!//f/fti/. DISTKIB. Borneo. 



Young branches, petioles, prominent nerves on the under surface of the leaves and 

 pedicels clothed with long fascicled hairs. Leaves 4-6 by 2-3| in., coriaceous, thinly 

 hairy above especially on the midrib, lateral nerves 15-18 pairs ; stipules glabrous 

 except a few fascicled hairs on the dorsal nerve; petiole l-lin. Saceme* about 

 G-Howered. Calyx-tube obeonic, glaucous, obovoid in immature Iruit, contracted below 

 the mouth, glabrous, unenlarged lobes broadly elliptic. 



** Calyx-tube in fruit 5-angled or winged. 



t Angles confined to t/ie upper portion of t/ie calyx-tube. 



7. D. cornutus, Dyer ; leaves oblong rounded at both ends or tip 

 apiculate sinuate-crenate, calyx-tube in fruit tubercular-pentagonal above, 

 mouth contracted. 



