Chickweed flower pistil. Coloured scanning electron micrograph (SEM) of a chickweed flower (Stellaria media) pistil. Pistils hold a plant's female reproductive structures. They contain one or more carpels, which, in turn, contain a stigma, style and an ovary. Within the ovaries are the ovules, the female gametes (sex cells). The ovaries are fertilised by pollen grains, the male gametes.

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TOP06663093

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達志影像

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RM

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須由TPG 完整授權

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