Dipterocarpus.\ xxv. DIPTEROCARPE^:. (W. T. Thiselton Dyer.) 29? 



MALACCA, Mawgay. 



Young branches compressed, canescent. Leaves 10-13 by 4-8 in., glabrous above, 

 canescent beneath, lateral nerves 19 pairs with a persistent intermediate plication ; petiole 

 2 in. ; stipules 4-6 in., canescent with scattered fascicled hairs. Racemes 4-6 in., simple, 

 about 8-fiowered. Calyx-tube in fruit f in. long, glabrous, wings linear-spathulate. 



8. D. tuberculatus, Roxb. Fl. Ind. ii. 614; leaves cordiform acute 

 base cordate or truncate margins sinuate-crenate undulate, calyx-tube in 

 fruit pentangular-costate in its upper part, mouth contracted. A. DC. 

 Prodr. xvi. 2, 614. D. cordatns, Wall. Cat. 956 ; A. DC. I.e. 612. D. grandi- 

 folius, Teysm. in Miq. Ann. Mus. i. 214. 



CHITTAGONG, Roxburgh; RANGOON, McClelland ; Birmah, Wallich. DISTRIB. Siam. 



Yonng branches compressed, glabrous or canescent. Leaves 10-18 by 5-14 in., late- 

 ral nerves 15 pairs ; petiole 4-5 in. ; stipules 3-5 in. Bacemes 5-6 in., simple or 2-fid, 

 4-7-flowered. Flowers large, rose-coloured. Calyx-tube in fruit l by 1 in., wings 

 4|-5 by 1J-1 in., linear-elliptic, obtuse, 3-nerved. Enben. 



VAR. grandiflora, Wall. Cat. 957 (sp.) f every part canescent, racemes 8 in. 9-flowered. 

 Attran. 



1 could not agree with Kurz (Journ. As. Soc. Seng. 1870, ii. 64, but corrected in 

 Regensb. Flora, 1872, 189), that the foliage of D. cordatus, Wall, (not cordifolius, as 

 cited) is identical witii that of D. obtusifolius . Miquel describes the calyx-tube in fruit 

 as " exalatus ;'' it does not appear however that he ever saw it mature. 



ft Angles or wings prolonged to the base of the calyx-tube, or nearly so. 

 a. Angles costate. 



9. Z>. zeylanicus, Thwaites Enum. 33 ; leaves elliptic or ovate-oblong 

 slightly apiculate base rounded margins faintly crenate, calyx-tube in fruit 

 urceolate. A. DC. Prodr. xvi. 2, 610. 



CEYLON, ascending to 3000 feet. 



Young branches, compressed, glabrous. Leaves 8 by 4 in., lateral nerves 17-22 pairs ; 

 petiole l|-2 in. . [Pacemes 2-fid near the base, 6-12-flowered. Thw.\ Petals blood- 

 red with pale yellowish margins. Calyx-tube in fruit 1 in. long; wings 5-7 J in., linear- 

 oblong, obtuse, sub-3 nerved, unenlarged lobes f-1 in., ovate-oblong, obtuse. Nut densely 

 canescent. 



/3. Angles winged. 



-10. D. scaber, Ham. in Mem. Wern. Soc. vi. 300; leaves oblong-ovate 

 acute base slightly cordate, racemes 4-9-flowered, calyx-tube in fruit 

 obovoid pilose angles with narrow membranous wings. 1). alatus, A. DC. 

 Prodr. xvi. 2, 611 in part, n*>t of Roxb. 



EASTERN BENGAL ; Mountains in Southern Tippera, Hamilton. 



Clothed with brown fascicled hairs ; young branches subcompressed. Leaves about 

 4 by 2 in., pilose on both surfaces, lateral nerves 12 pairs ; petiole f in. Calyx-tube in 

 fruit f in., pilose, mouth contracted, fruit-wings 3 in., linear oblong obtuse. 



11. D. glandulosus, Thwaites Enum. 34; leaves oblong-lanceolate 

 acuminate base acute margins slightly ciliate, racemes 2-3-flowered, flowers 

 shortly pedicelled (calyx-tube in fruit subglobose the angles with wings 

 broadest in the middle but not reaching to the pedicel. Thw.\ A. DC. 

 Prodr. xvi. 2, 612. 



CEYLON ; SafFragam and Ambagamowa districts, Thwaites. 



The subcompressed young branches, petioles and stipules stellately puberulent and 

 thinly hairy. Leaves 4-6 by 2-2 in., glabrous above, glaudular-puberulous beneath, 

 lateral nerves 11 pairs; petiole f-1 in. [Fruit-wings (calyx-lobes) 3-4 by % in. Thw.\ 

 Petals about 1| in. long, yellow. 



