Doona.] DipterocarpacecB. 1 2 1 



3. D. Gardneri, Thw. Emtm. 35 (1858). 



C. P. 1919. 



Fl. B. Ind. i. 312. Bedd. Fl. Sylv. t. 98. 



A large tree, bark thick, smooth, fibrous, young parts 

 glabrous ; 1. 2^-3! in., ovate-oval, rounded at base, margin 

 revolute at base, thick, lat. veins about 13, rather inconspicuous, 

 petioles |-f in., slender, deeply channelled ; fl. | in., on very 

 short, nodding ped., in axillary and terminal panicles ; sep. 

 oval, obtuse, glabrous and shining ; pet. rotundate, concave, 

 very hairy outside ; enlarged fruit-sep. if-2 in., wings oblong- 

 linear. 



Lower montane zone ; rather rare. Hewahette ; Dickoya ; Raxawa 

 (Gardner) ; Ambagamuwa. Formerly more common. The only hill 

 species of Doona. Fl. Jan.-April ; pale pink. 



Endemic. 



Wood hard, even-grained, durable, reddish - brown ; called ' Red 

 Doon ' by the sawyers in the hill-country, and used for sleepers on the 

 Haputale railway. 



4. I>. nervosa, Thzu. Enum. 35 (1858). ILotikan-beraliya, S. 



C. P. 3410. 



Fl. B. Ind. i. 311. 



A large tree, young parts glabrous ; 1. 3-5 in., ovate- 

 lanceolate, rounded or slightly subpeltate at base, lat. veins 

 10-12, curved, fine, with the reticulations prominent beneath 

 as well as above, petioles |-| in. ; fl. | in. diam., nodding, in 

 few-flowered axillary panicles shorter than 1., ped. thick; sep. 

 glabrous; pet. silky outside; enlarged fruit-sep. i^ in., wings 

 narrowly oblong-spathulate, twisted, nut sharp-pointed, con- 

 siderably exceeding the thickened bases of sep. 



Moist low country ; rare. Eknaligoda and PalabaduUa, Kuruwita 

 Korale ; Hewesse ; Pasdun Korale ; Udugama, S. Prov. (Capt. Walker) ; 

 Waddagalle, Kukul Korale (Lewis). Fl. March, April. 



Endemic. 



The cui-ious hop-like galls are also found on this species. 



I am not sure that the specimens from the S. Prov. should be referred 

 to this species. 



, 5. D. trapezifolia, Thw. Enu7n. 35 (1858). Vakahalu, S. 



C. P. 3341. 



Fh B. Ind. i. 311. 



A large tree, young parts puberulous ; 1. 2J-3 in., oblong- 

 oval or slightly rhomboid, acute or rounded at base, shortly 

 caudate-acuminate, lat. veins numerous (about 20), fine, and 

 with the connecting veinlets more conspicuous above than 

 beneath ; fl. \ in. diam., in short axillary panicles, ped. slender, 

 puberulous ; enlarged fruit-sep. \-2 in., wings linear-oblong, 

 nut f in., longer than thickened bases of sep., sharply pointed. 



