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| Description: Remains of an abscission zone between a leaf petiole and twig of horse chestnut (Aesculus hippocastanum). Abscission as part of normal life cycles. Abscission occurs in zones. Picture Stats: Views: 155 Filesize: 662.48kB Height: 1500 Width: 957 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=47872 |