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V. 
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THE PHILIPPINE 
JOURNAL OF SCIENCE 
Paul C. Freer, M. D., Ph. D. 
SUCCEEDED BY 
Alvin J. Cox, M. A., Ph. D 
GENERAL EDITOR 
Section c. botany 
E. D. MERRILL, M. S. 
EDITOR 
WITH THE COOPERATION OF 
P, W. GRAFF, B. S.; W. H. BROWN, Ph. D, 
H. N. WHITFORD, Ph. D, 
Vol. VII 
1912 
With 22 Plates and 2 Text Figures 
.V 
^ ^ 
MANILA 
BUREAU OF PRINTING 
1912 
/X 
