BROWN UNIVERSITY 
DEPARTMENT OF BOTANY. 
W. WHITMAN BAILEY, A. M., 
Professor. 
J. FRANKLIN COLLINS, Ph. B., 
Curator of the Herbarium- 
HAVEN METCALF, A. M., 
Instructor . 
PROVIDENCE, R. I., 9^0- t /3 . lB3°t 
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