The Philippine Journal of Science, C. Botany. 

 Vol. XIII, No. 3, May, 1918. 



PHILIPPINE DIPTEROCARPACEAE, II 



By F. W. Foxworthy 

 (From the Bureau of Forestry) 



Two Plates 



Six years ago I published a synopsis of the Philippine species 

 of this group. 1 At that time we recognized seven genera and 

 forty-eight species as occurring in the Archipelago; we now 

 recognize nine genera and seventy species. Since then two other 

 articles have been issued dealing with some of the Philippine 

 representatives of this group. One of these was by Mr. A. D. 

 E. Elmer, 2 who described two new species of Hopea and two of 

 Vatica; the other was my own paper on the Dipterocarpaceae 

 of the Agusan region, based on collections made by Mr. Elmer ; s 

 in that paper I described five species as new and recorded notes 

 on five other species. In the present paper an attempt is made 

 to bring our present knowledge of the group into classified form. 

 All of the keys have had to be rewritten. 



COMMON NAMES OF DIPTEROCARPS 



The ten or twelve well-known types of Philippine dipterocarp 

 woods are supplied by about seventy different species. A par- 

 ticular wood in nearly every case is furnished by a group of 

 species. Most of the species are sufficiently well known to have 

 common names, but the same tree often has different names in 

 different localities ; this has caused a great deal of confusion. In 

 the interests of accuracy and uniformity it has seemed advisable 

 to make a list of the known names and to make an effort to stand- 

 ardize them. In doing this, there has first been made a list of the 

 commercial woods by their names in their principal markets. 

 Following this there is a list of the species known to produce 

 each wood; and, finally, there is an alphabetical list of all the 

 known common names with the species to which they are affixed. 



'Philip. Journ. Sci. 6 (1911) Bot. 231-288. 

 a Leafl. Philip. Bot. 4 (1912) 1471-1474. 

 •Leafl. Philip. Bot. 6 (1913) 1949-1958. 



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