BRITTON AND ROSE 



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PLATE XXVII 



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X 



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^ E. Katon 



1. Upper part of fruiting joint of Opiintia uhumamm 



2. Flower of Opuntia scJmniannn 



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4 



Flowering joint of Opuntia vulgaris. 

 Flowering joint of Opuntia stricia. 



(All natural size.) 



