THALAMIFLORyE 



191 



Thea, Link), which is said to grow wild in the jungles 

 of Assam. Eurya acuminata is a Chittagong and 

 East Bengal plant. 



Nat. Order 23. DipterocarpacecB. — Large trees with 

 abundant resinous juice, alternate pinni-veined stipu- 

 late leaves. Calyx 5-lobed, persistent, and fruit en- 

 closed by the enlarged 

 calyx, two or more lobes 

 of which form wings. 



It is a tropical Order, 

 chiefly of eastern Asia, and 



Fig. 165.— Sal i^Shorea tvbttsta) 



Fig. i6^.— CameUia dritpifera, 

 a kind of tea 



f. Fruit. 



«t, Winged persistent 

 calyx. 



represented in Bengal by sal {Shorea robusta), a 

 gigantic timber tree of great value, with its fruits 

 enclosed within the persistent calyx, three segments 

 of which grow into big wings and two into smaller 

 wings (which help the dispersion of the fruits) (fig. 165) 

 — it yields a resin known as dhoona, much used as an 

 incense; and garjan trees of Chittagong and Tipperah, 

 which belong to the genus Dipterocarpus, the stems of 

 which are tapped for garjan-oil, a liquid balsam or 

 resin much used as a varnish. In the genus Diptero- 



