Stigmas of the Hibiscus flower

Stigmas of the Hibiscus flower

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Caption: False-colour scanning electron micrograph (SEM) of the feathery stigmas of the Hibiscus flower (family Malvaceae). The stigmas form the free end of the carpel, the flower's female reproductive organ. They are joined to the ovaries at the base of the carpel by a stalk-like style. Pollen grains coming into contact with the feathery projections on the stigma may germinate & produce a tube that grows down the style & into the ovaries, which contain the female gametes. The male gamete contained in the pollen grain passes down the pollen tube & into the ovary, where fertilisation occurs. Seed production follows. Magnification: x6 at 35mm size. Green tint ("leech"). Ref: MICROCOSMOS, fig. 4.27, p. 81

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Keywords: botany, flower, flowering part, hibiscus, nature, parts, plant, plants, sem, stigma, type

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