62 PHILIPPINE RESINS, GUMS, AND OILS 
like balau and yields about 25 per cent of water, 35 per cent 
of oil, and 40 per cent of solid residue. It probably consists 
of water, sesquiterpene oils, and solids. 
Dipterocarpus vernicifluus reaches a height of 40 to 45 meters 
and a diameter of 160 to 180 centimeters. The bole is straight, 
regular, and reaches a length of 28 to 32 meters. It usually 
has very prominent buttresses. The bark is from 5 to 8 milli- 
meters thick, light brown to gray in color, scaling in large 
patches, and is covered with numerous corky pustules. The 
inner bark is brown to reddish brown and stringy in texture. 
The young stems and the midrib and secondary nerves of the 
leaves are covered with long hairs. The leaves are alternate, 
leathery, pointed at the tip, rounded at the base, from 10 to 23 
centimeters long, and 6 to 13 centimeters wide. The flowers 
are about 4 centimeters long, white, tinged with pink, and very 
fragrant. The fruits are rounded, about 1.5 centimeters in 
diameter and bear two long wings which are about 12 centi- 
meters in length and 2 or 3 centimeters in breadth. The wood 
is very similar to that of Dipterocarpus grandiflorus and has 
the same uses. 
This species abounds in regions with a pronounced dry season 
and has been reported from the following localities: Cagayan, 
Isabela, Ilocos Norte, Ilocos Sur, Pangasinan, Zambales, Nueva 
Ecija, Pampanga, Bulacan, Bataan, Rizal, Laguna, Tayabas, Ca- 
marines, Marinduque, Polillo, Negros, Samar, Leyte, Palawan, 
Misamis, Surigao, Agusan, Davao, Cotabato, and Zamboanga. 
