STUDIES IN THE VEGETATION OF THE PHILIPPINES, I. 717 



These figures show the hulk of dipterocarps to he not so high here as 

 in some other forests, yet the preponderance of that family is still too 

 apparent to be overlooked. 



The following, giving some idea, of the composition of the forest, is 

 a list of the principal trees other than those mentioned in the yield and 

 stand tables : 



Fagaceak-Q unc as sp. ; UlMACEAX-Celtis >p. ; ^loRAVKAK-Artocarpus communis 

 Forst. ; AyoxACEAE-Canangium odoratum Baill.; Mykisticaceak- Myristica spp. ; 

 RosACEAE-Parinarium griffithianum Benth.; BuRSEBACEAE-Canortwn spp.; Legu- 

 MixosAE-Erythrophloeitm densiflorum (Elmer) Merr., Albizzia saponaria Blume; 

 FjVPaoRiUACEAE-Cyclostemon spp. ; Anacauuimeav.- Koordersiodendron pinna turn 

 Merr.; tiAVWDAVEAE-Euphoria cinerea Radlk., Pomclia pinnata Forst.; Kiiamna- 

 CEAE-Zizyphus zomdatus Blanco; TlLIACEAE-Gretoia stylocarpa Warb. ; Stercu- 

 LIACEAE-Pterospermum spp., Ptcrocymbium (inctorium Merr.; GuTTIFERAE-Cafo- 

 phyllum spp., Garcinia spp.; DiPTEROCARPACEAE-//opea spp., Anisoptcra sp.; 

 Lythraceae- Lag erst roemia piriformis Koelme; CoHBRETACEAE-rerm'nah'a nitens 

 Presl; Myrtaceae -Eugenia spp.; SAPOTACEAE-Poio^«vura spp.; Erexaceae-Dzos- 

 pyros spp.; Apocynaceae- Wrightia laniti Merr.; VEBSBENACKAK-Fttea) littoralia 

 Decne., Yitex aherniana Merr.; ILwiACEAE-Sarcocephaiut cordatua Miq. 



FORESTS OF LEYTE, MINDORO, AND VARIOUS PART8 OF LUZON, AND 



M] NDANAO. 



Hough estimates of timber made in the Davao District of Mindanao 

 show also the predominance of dipterocarps. On the Island of Samal 

 near Davao, at least 80 per cent of the volume; of the forest is composed 

 of dipterocarps, mainly Pentacme contorta Merr. & Rolfe, Parashorea 

 pUcala Brandis, and Sliorea guiso Blume. Untouched' forests on the 

 mainland at the head of Davao Gulf showed the dipterocarp forests reach- 

 ing to the tide-water in many places and even occupying all but the 

 frontal zones of the beaches. 



The above represent regions in which more or less detailed studies 

 have been made by the author. More hurried trips made in the Provinces 

 of Tayabas and Camarines on the Island of Luzon, in the District of 

 Zamboanga on the Island of Mindanao, and on the Island of Leyte, show 

 that the large bodies of forest are composed of dipterocarps in greater 

 or less proportion usually running over on an average 10 to 80 per cent 

 of the bulk. The published work of Merritt 8 for Mindoro and the 

 unpublished results of Curran, Dagger, Klemme, and other foresters in 

 the Bureau of Forestry for various parts of the Island of Luzon, of 

 Hutchinson for parts of Mindanao, and of Rosenbluth for northern Leyte, 

 give results in entire confirmation of those mentioned above. 



8 M. L. Merritt. The Forests of Mindoro, Bureau of Forestry (Philip.) Bull. 

 8 (1908) 1-51. 



