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The Cactaceae Plate XXI . BRITTON AND ROSE VOL Ill PLATE XXI Schutt del Eaton del Flowering plant of Astrophytum capricorne Top of flowering plant of Malacocarpus tefi hr acanthus All natural size Plate XXI Illustration biodiversitylibrary org title Britton Nathaniel Lord Rose NameFound Astrophytum capricorne NameConfirmed