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Fig. 6. Cell shapes in wild-type Petunia hybrida flower petals as seen
by SEM. (A) A freeze-fracture across a wild-type petal showing the
presence of conical cells in both the inner/adaxial and outer/abaxial
epidermis. ie, inner epidermis; m, mesophyll; oe, outer epidermis. (B)
Inner epidermal cells of wild-type petals. (C) Cells of the outer
epidermis. The base shapes of one cell in the inner and outer epidermal layers
are outlined in pink. t, trichome. Scale bars: 50 µm.