32 DIPTEROCARPEJE. [ Dipterocarpus. 



A lofty evergreen tree. Wood rough, moderately hard ; heartwood 

 reddish grey. Pores round, large and moderate-sized, joined by short 

 concentric bands of soft tissue. Medullary rays prominent, broad and 

 very fine, a large number of the latter intervening between a pair of the 

 former; very prominent and shining on a radial section. 



Eastern Bengal, Chittagong, Burma and the Andaman Islands. 

 Skinner, No. 64, gives the weight at 45 Ibs. and P = 762 ; Kurz gives 55 Ibs. for the 

 weight, while our specimens average 50 Ibs. per cubic foot. The wood is used for house- 

 building and for canoes in Burma ; and the wood-oil is used in painting houses and 

 ships. 



Ibs. 



E 709. Chittagong 49 



B 293. Burma (1867) 43 



B 2216. Andaman Islands (Major Ford, 1866) 52 



B 2555. Burma (1862) 56 



2. D. laevis, Ham. ; Kurz i. 114. D.turlinatus, Hook. Fl. Ind. i. 

 295 (in part). Vern. Kanyin, kany in-nee, Burra. 



A lofty tree. Sapwood white ; heartwood rough, reddish, s.->ft. Pores 

 moderate-sized, numerous. Medullary rays red, fine, moderately broad 

 and broad, visible on a radial section as long bands, the distance between 

 two broader rays equal to two to four times the transverse diameter of the 

 pores. 



Tropical forests throughout Burma. 



Weight : our specimens give an average of 46 Ibs. per cubic foot. The wood is 

 rarely used, but is occasionally employed for planking and rafters. It yields copiously 

 a resin and a wood-oil used for painting. 



Ibs. 



B 292. Burma (1867) 43 



B 2506. (1862) 49 



D. indicus, Beddome t. 94. Vern. Guga, Kan., of the Western Ghats, is referred to 

 this or to D. turbinatus by Dyer. 



3. D. obtusifolius, Teysm.; Hook. Fl. Ind. i. 295; Kurz i. 115. 

 Vern. Eanyi*-kok y Burm. 



A large deciduous tree. Bark f inch thick, ash-grey, longitudin- 

 ally cracked, rough. Heartwood reddish brown, rough, moderately 

 hard. Pores large and moderate-sized. Medullary rays fine and very 

 fine, numerous. 



Eng forests of Prome and Martaban, ascending to 3,000 feet. 

 Weight, 59 Ibs. per cubic foot. 



Ibs. 

 B 3128. Kya-eng, Attaran Valley, Burma 59 



4. D. tuberculatus, Roxb. Fl. Ind. ii. 614; Hook. Fl. Ind. ii. 297; 

 Kurz i. 113. D. grandijiorus y Wall. The Eng Tree. Vern. Eng, Burm.; 

 Sooahn, Talcing. 



A large deciduous gregarious tree, with dark grey bark, forming the 

 "Eng forests" of Burma. Wood red, hard. Pores circular, large and 

 moderate-sized, often filled with resin. 1 Medullary rays promim-nt, 

 moderately broad, with a number of fine rays between each pair of broad 

 ones; distance between broader rays as much as twice transverse dia- 

 meter of pores. 



ChiU:i#nitf and Burma. 



Weight! Uramlis in JJiinna List of 1S(52. No. 1'J, -ivrs 5 5 Ibs. ; Skinner, No IM, 

 given 45 and Benson 46 Ibs. ; while the average of our .vpL-ciiiions givi-s 5-1 Ibs. 



