\,\3 



THE PHILIPPINE 



JOURNAL OF SCIENCE 



Alvin J. Cox M. A., Ph. D. 



GENERAL EDITOR 



Section C. Botany 



E. D. MERRILL, M. S. 



EDITOR 

 WITH THE COOPERATION OF 



W. H. BROWN, Ph. D. ; C. F. BAKER, M. A. ; L. M. GUERRERO, Phar. D. 

 R. C. MCGREGOR, A. B. 



Volume XIII 



1918 



With 6 Plates and (! Text Figures 



168742 5 



MANILA 



BUREAU OF PRINTING 



1918 



P 



