PHILIPPINE DIPTEROCARPACEAE. 
247 
probable that they are identical and possible that they both will have 
to be referred to D. pilosus. This is particularly likely in view of the 
extreme variability in size, shape, and texture of the leaves at different 
ages in species of this genus. It will, however, require careful observation 
in the field before any such reduction can safely be made. 
Luzon, Province of Cagayan, For. Bur. 5248 Klemme, For. Bur. 11213, 11233 
Curran, For. Bur. 18501 Alvarez: Province of Tayabas, For. Bur. 10314 Curran: 
Province of Camarines, Vidal 82, For. Bur. 10660 Curran. Ticao, Vidal 2161. 
Mindanao, District of Zamboanga, For. Bur. 1555 Hutchinson, For. Bur. 9433 
Whitford & Hutchinson. 
Common names: .camuyao (Cag.), hagachac (Tag.), liput (Manobo). 
3. Dipterocarpus sp. aff. D. turbinato Gaertn. f. Plate XXXIX. 
A form with fruit which is distinctly obconical or top-shaped. Leaves 
and buds glabrous or nearly so, resembling material of D. turbinatus var. 
andamanicus King. Our material is all fragmentary, the fruit having 
been collected on the ground under the trees. Yidal, Sinopsis, Atlas 
(1883) xv, i. 14, f. c. represents a fruit which he calls D. turbinatus 
and which is said to have been brought from the Island of Panay. The 
fruit figured by Yidal is apparently not so top-shaped as in the specimens 
cited below. 
Some of the material from the Malay Peninsula in the herbarium at 
Kew under the name of D. turbinatus has fruit very much like the 
following : 
Luzon,, Province of La Laguna, For. Bur. 8864, 10014,. 19261 Curran: Province 
of Tayabas, For. Bur. s. n., For. Bur. 3223 Hagger, For. Bur. 6045 Kobbe, For. 
Fur. 12500 Rosenbluth: Province of Albay, Cuming 881: Province of Sorsogon, 
For. Bur. 10564 Curran. 
This species seems to be fairly common in dense forests on low ridges in some 
parts of Tayabas. 
Common names: apitong (Tag.) , patsahingin (Tag.). 
4. Dipterocarpus trinervis Blume Cat. Buitenz. (1823) 78, tab., Bijdr. 
(1823) 223, FI. Javae (18290 H, t. 1, Verhandl. Bat. Genootsch. 9 (1825)' 178; 
Kortli. Verh. Nat. Gesch. Kruidkunde 1 (1848) 61; De Vriese in Miquel PI. 
Jungh. 1 (1851) 83; Miq. FI. Ind. Bat. I 2 (1859) 496; A. DC. Prodr. 16 2 
(1868) 608; Dyer in Journ. Bot. 12 (1874) 102; Burck in Ann. Jard. Bot. 
Buitenz. 6 (1887) 195; Brandis & Gilg in Engler & Prantl Nat. Pflanzenfam. 3 s 
(1894) 257, f. 119, F; Brandis in Journ. Linn. Soc. Bot. 31 (1895) 30. 
Leaves and fruit larger than in D. liasseltii; secondary nerves 16 to 20 
pairs ; petiole one-fourth to one-sixth the length of the blade. Fruit more 
than 2 cm in diameter. 
Represented in our collection by only two detached old leaves from Palawan. 
The determination is therefore rather doubtful. 
Palawan, For. Bur. 12212 Wallace. 
Common name : apitong ( Vis. ) . 
Distribution: Java and the Philippines. 
