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THE CACTACEAE
DESCRIPTIONS AND ILLUSTRATIONS OF
PLANTS OF THE CACTUS FAMILY
BY
N. L. BRITTON and J. N. ROSE
Volume I
The Carnegie Institution of Washington
Washington, 1919
DESCRIPTIONS AND ILLUSTRATIONS OF
PLANTS OF THE CACTUS FAMILY
BY
N. L. BRITTON and J. N. ROSE
Volume I
The Carnegie Institution of Washington
Washington, 1919