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Abstract
Supplementary material 1 . Scanning electron micrographs of adaxial and abaxial epidermal cells in the sepals during flower opening. Adaxial epidermal cells at stage 1 (a), stage 2 (b) and stage 3 (c). Abaxial epidermal cells at stage 1 (d), stage 2 (e) and stage 3 (f). The scale bars represent 50 μm