614 poLYANDRiA MONOGYNIA. Dipteroccirpiis. 



ed, acuminate, hairy underneath. Stipules small and 

 hirsute. Belly of the calyx five-ribbed, and a little 

 hairy. 



A native of the coast south of Chittagong, where it is 

 called Tileeya-gujrwn : like the other species it grows to 

 be a tree of the first magnitude, and also furnishes the 

 balsam called wood-oil, and is next in proportion to 

 incanus. It blossoms in the cold season, and the seed 

 ripens in April and May. 



3. D. incanus. R. 



All the tender parts hairy. Leaves ovate, with the 

 base somewhat tapering, obtuse, soft, and villous; spikes, 

 axillary, half the length of the leaves ; belly of the calyx 

 simply five-winged. 



Gurjjai, is the vernacular name at Chittagong, where 

 the tree grows to a great size, and is said to furnish the 

 largest proportion of the best sort of wood oil or balsam 

 mentioned in my description of Z). turbinatus. Flower- 

 ing time November and December, and the seed ripens 

 in April. 



4. D, alatus. R. 



Tender parts hairy. Leaves from ovate-oblong, to 

 ovate-cordate, acuminate, smooth, and opaque above, 

 harsh underneath, margins ciliate. Belly of the calyx 

 five-winged. 



An immensely large tree, a native of Mascal Island, 

 and the neighbouring coast, Pegue, &c. It is the wood 

 oil tree of the latter country. 



5. D. tuberculatus. R. 



Body of the calyx spherical, with five knobs under its 

 five fissures on the outside. 



A native of Chittagong where it flowers about the begin- 

 ning of the liot season, and the seed ripens in June. 



