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Keywords from Image Description:
The Cactaceae Plate III . BRITTON AND ROSE VOL Ill PLATE III Eaton del Top of flowering plant of Echinocereus pentalophus Flowering plant of Echinocereus fitchii Top of flowering plant of Echinoceieus grandis Flowering plant of Echinocereus blanckii All natural size Plate III Illustration biodiversitylibrary org