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Keywords from Image Description:
The Cactaceae Plate XXXIII . BRITTON AND ROSE Eaton del Upper part of joint of Opiinlia tomentosa Flowering joint and branch of Opuntia brasiliensis Joint oi Grusonia bradtiana All natural size Plate XXXIII Illustration biodiversitylibrary org title Britton Nathaniel Lord Rose NameFound Grusonia bradtiana NameConfirmed