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 ; 3 
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. 
1 Philip. Journ. Sci. 6 (1911) Bot. 231-288. 
2 Leaf!. Philip. Bot. 4 (1912) 1471-1474. 
2 Leafl. Philip. Bot. 6 (1913) 1949-1958. 
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