Parthenium hysterophorus L.

PLANTÆ UTOWANÆ.
PLANTS COLLECTED BY CHAS. F. MILLSPAUGH, M D., DURING THE WEST-
INDIAN CRUISE OF THE AUXILIARY S S YACHT "UTOWANA"
DECEMBER 1899 TO MARCH 1899
ALLISON V. ARMOUR, Esq , OWNER AND MASTER
GUANICA; JAN. 22.
PUERTO RICO.