OF THE DIPTEROCARPACEZ, 85 
Asiat. Soc. Bengal, lxii. pars 2 (1893), 98.—Dipterocarpus 
Lemeslei, Vesque in Compt. Rend. lxxviiii, (1874) 626. 
Pegu; Tenasserim; Siam; Cambodia; Cochinchina, where, 
according to Pierre, it is found from the coast to an elevation of 
1800 feet. Not gregarious, but scattered in mixed, partly ever- 
green forests, often taller than these. Yields large quantities of 
wood-oil, which in the wood is found chiefly in the long horizontal 
cells of the medullary rays, which are up to 3 mm. (0°12 in.) long. 
Wings of calyx-tube broad. 
41. DrerEROCARPUS COSTATUS, Gaertn. f. Fruct. iii. (1805) 50, 
t. 187; Ham. in Mem. Werner. Soc. vi. (1832) 299; Kurz in 
Journ. Asiat. Soc. Bengal, xliii. pars 2 (1874), 98, et For. Fl. Brit. 
Burma, i. 117 ; King in Journ. Asiat. Soc. Bengal, p. 99 in obs. 
South Tipperah near the coast (Hamilton) ; Pegu ; Martaban ; 
Tenasserim. 
Wings of calyx-tube narrow. 
I follow King in keeping D. costatus separate from D. alatus, 
because the original specimens of fruit preserved in the British 
Museum, upon whieh Gaertner based his species, actually have 
very narrow wings, and because King mentions specimens from 
Burma with fruits exactly like that figured by Gaertner. I am 
not, however, sure whether this character is constant. This 
question must be studied on the spot in the forest. Specimens 
of D. costatus from Tipperah or Chittagong I have never seen. 
42. D. rNCANUS, Roxb. Hort. Beng. (1814) 42, et Fl. Ind. ii. 
614; Kurz in Journ. Asiat. Soc. Bengal, xliii. pars 2 (1874), 98, 
et Fl. Brit. Burma, i. 113 (clav. analyt.); King in Journ. Asiat. 
Soc. Bengal, lxii. pars 2 (1893), 97. 
Common on South Andaman; Pegu; Tong kah (Siam), on the 
east coast of the Malay peninsula in its northernmost extremity 
(Curtis,n. 2926). Roxburgh describes D.incanus from Chittagong, 
which I think is outside its area of distribution. Idoubt whether 
Roxburgh had before him the plant which we now call D. ncanus, 
Roxb. But as no authentic specimens appear to be in existence, 
this cannot be proved, and under these cireumstances Roxburgh’s 
name had better be permitted to stand. 
43. D. scanER, Ham. in Mem. Werner. Soc. vi. (1832) 300; 
Dyer in Hook. f. Fl. Brit. Ind. i. 297. 
Mountains in South Tipperah (Hamilton). 
A most remarkable species. The specimen preserved in the 
D2 
