LEAFLETStOF PHILIPPINE BOTANY 



EDITED BY A. D. E. ELMER, A. M. 



Vol. VI. Manila, P. I., November 21, 1913. Art. 97. 



DIPTEROCARPACEAE FROM THE AGUSAN 



REGION 



by 



F. W. Foxworthy 



(Assistant Professor of Dendrology, University of the Philip- 



pines, College of Agriculture, Los Banos, P. J.) 



Until the past year, there had been very little collect- 

 ing of botanical material in this region. The only Diptero- 

 carpaceae that had been collected were, the very widely dis- 

 tributed Pentacme contorta (Vid.) M. and R., Hopea philippinensis 

 Dyer, Shorea negrosensis Foxw., and Shorea squamata (Turcz.) 



Dyer, — all represented by sterile material. 



Mr. A. D. E. Elmer collected in this region from July 

 to October, 1912. His collection included eleven numbers of 

 Dipterocarpaceae, which are of special interest. The collection 

 is noteworthy in that it includes Dipterocarp material collected 

 at relatively high elevations. The members of this family 

 are usually found in dense forests at low elevation. Several 

 of the numbers of this collection were obtained at elevations 

 of more than 1000 meters. 



In the eleven numbers, eight species are represented, 

 seven of them being either entirely new or species of which 

 there had previously been very imperfect collections; and, 

 the eigth species is one which has rarely been collected in 



flower. 



1949 



