54 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 heaitwood 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, Masbate, 

 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). Api'tong. 

 Local names: Afiahdnon (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, 

 litis (Capiz) ; duen (Isabela) ; duko (Isabela; Apayao) ; duko, pamalalien 

 (Cagayan) ; hagakhdk (Sibuyan Island) ; himpagtdn (Samar) ; kamuyau 

 (Palaui Island, Cagayan) ; malapdho, tnaydpis (Tayabas) ; pagsahingan. 

 (Laguna) ; pamantiUen (Pangasinan) ; pamamisen (Cagayan, Camari- 

 nes) ; pdnau (Bataan, Zambales, Rizal) ; pdnau verdadero (Bulacan). 



* Foxworthy, F. W., Philippine Dipterocarpaceae, II. Philippine Journal 

 of Science, Volume 13 (1918), pages 163-197. 



