UNITED STATES GEOLOGICAL EXPLORATION OF THE FORTIETH PARALLEL.
CLARENCE KING, GEOLOGIST-IN-CHARGE.


BOTANY.
BY
SERENO WATSON,
AIDED BY
PROF. DANIEL C. EATON, AND OTHERS.
SUBMITTED TO THE CHIEF OF ENGINEERS AND PUBLISHED BY ORDER OF THE SECRETARY OF WAR
UNDER AUTHORITY OF CONGRESS.
ILLUSTRATED BY A MAP AND FORTY PLATES.
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WASHINGTON:
GOVERNMENT PRINTING OFFICE.
1871.