NO. 53.— 1902.] TREES A.ND FLOWERING PLANTS. 



115 



peculiarity of germination, and diversity of structure, all 

 combine to render the Order very fascinating to the scientific 

 and non-scientific botanist alike. 



For the present I adopt Dr. Trimen's sub-divisions of 

 the Family till more perfect materialis obtained for a re- 

 arrangement of Genera and of species. The Ceylon Genera 

 consist of Dipterocarpus, with 5 species ; Shorea, with 5, 

 probably 8, species ; Doona, with 11 species ; Hopea, with 3, 

 and possibly 4, species ; Sunaptea, with 2 ; Yatica, with 3 ; 

 Balanocarpus, with 1 ; Vateria, with 1 ; Stemonoporus, with 

 13, and more probably 16 ; and Monoporandra, with 2 ; 

 making a total of 53, of which the majority are useful trees. 



40. — Dipterocarpus hispidus. 

 Bu-hora, S. g^aosd. 



Trim. Cey. Flor., vol. I., p. 114. 



An enormous tree, with straight cylindrical pale grayish 

 stem, often attaining 100 feet to the first branch. Easily 

 recognized by the dense stiff masses of rigid hair on the 

 leaf -stalks and stipules. 



Fairly common in the wet forests, but not generally 

 distributed. Abundant in the Kukulu Korale, Sinha Raja 

 forest, parts of Gilimale, Eratne, and near Karawita ; 

 occasionally in lower part of the Pasdun Korale. 



The wood is pale reddish-brown, very resinous, and of 

 great value in barge-building, cask-making, and for mine- 

 planking. Lasts well under water. Weight, about 46 lb. per 

 cubic foot. 



41. — Dipterocarpus zeylanicus. 

 Hora, S. c*2D5d. 



Trim. Cey. Flor., vol. I., p. 114, plate X. 



A tall clear-stemmed tree, often attaining enormous 

 proportions. I have measured individual trees 22 feet in 

 girth with 90 feet of clear stem. 



This is perhaps one of the best-known timber trees in 

 Ceylon on its western side, and has a wide distribution 

 within the wet zone. 



