52 PHILIPPINE RESINS, GUMS, AND OILS 
€ 
a diameter of 140 to 180 centimeters. It has a straight, regular, 
unbuttressed bole that is three-fifths to two-thirds of the height 
of the tree. The canopy is dense during the rainy season 
and open in the dry, at which time it changes leaves. The bark 
is from 15 to 25 millimeters thick; in young trees smooth and 
with a yellowish tinge; in older trees, especially at the base, 
broken into irregular patches and dirty brown in color. The 
bark beneath the surface has a reddish-brown color; the inner 
bark is granular brownish-yellow; the granular coloring being 
due to broken, concentric rings of yellow. The leaves are alter- 
nate, rounded at the base, pointed at the tip, from 7.5 to 16 
centimeters long, and from 3 to 7 centimeters wide. The fruit 
is rounded, 4 to 15 millimeters in diameter, and with two wings 
which are 5 to 9 centimeters long, and sometimes more than 
a centimeter broad. 
The heartwood is yellowish with rose-colored streaks and 
blotches or evenly rose-colored. When seasoned, the color is 
pale yellow with reddish or light yellowish-brown markings. 
It is used considerably for construction. 
This species is common and widely distributed in the Phil- 
ippines. It has been reported from the following localities :— 
Ilocos Norte, Ilocos Sur, Abra, Pangasinan, Zambales, Nueva 
Ecija, Bulacan, Bataan, Rizal, Laguna, Tayabas, Camarines, Al- 
bay, Sibuyan Island, Capiz, Iloilo, Ticao Island, Samar, Masbates 
Zamboanga. Anisoptera thurifera is the commonest and best 
known species of the genus in the Philippines, but the wood of 
all is known commercially as palosapis. According to Fox- 
worthy,* palosapis ranks about tenth in order of abundance 
among the Philippine woods and makes up about 1.5 per cent 
of the volume of the forests. . 
Genus DIPTEROCARPUS 
DIPTEROCARPUS GRANDIFLORUS Blanco. (Figs. 16-19). APITONG. 
Local names: Anahduon (Camarines); apitong (Bataan, Cagayan, Isa- 
bela, Abra, Benguet, Zambales, Nueva Ecija, Bulacan, Laguna, Tayabas, 
Camarines, Albay, Mindoro, Sibuyan Island, Samar, Negros, Palawan) ; 
baldu (Misamis, Sibuyan Island, Negros, Capiz, Misamis, Agusan) ; danlog, 
létis (Capiz); dien (Isabela); dukdé (Isabela; Apayao); duk6o, pamalalien 
(Cagayan); hagakhdk (Sibuyan Island); himpagtan (Samar); kamuyau 
(Palaui Island, Cagayan); malapdho, maydpis (Tayabas); pagsahingan 
(Laguna); pamantilen (Pangasinan); pamarnisen (Cagayan, Camari- 
nes); pdnau (Bataan, Zambales, Rizal); panau verdadero (Bulacan). 

* Foxworthy, F. W., Philippine Dipterocarpaceae, II. Philippine Journak 
of Science, Volume 13 (1918), pages 163-197. 
