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THE CACTACEAE
DESCRIPTIONS AND ILLUSTRATIONS OF
PLANTS OF THE CACTUS FAMILY
BY
N. L. BRITTON and J. N. ROSE
Volume II
The Carnegie Institution of Washington
Washington, 1920
DESCRIPTIONS AND ILLUSTRATIONS OF
PLANTS OF THE CACTUS FAMILY
BY
N. L. BRITTON and J. N. ROSE
Volume II
The Carnegie Institution of Washington
Washington, 1920