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Receptive tip of a carpel
- The stigma (pl.: stigmas or stigmata) is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower.
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The stigma ( pl.: stigmas or stigmata) [1] is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower . Description. Stigma of a Tulipa species, with pollen. Closeup of stigma surrounded by stamens of Lilium 'Stargazer')
- Glossary of botanical terms
1. (of a flower) The period during which pollen is presented...
- Stigma
Stigma (plural: stigmata) may refer to: In biology : Stigma...
- Glossary of botanical terms
A stigma is a part of a flower that gets pollen from pollinators such as bees. The stigma is part of the female reproductive part of a flower, the pistil. The stigma is on top of the style. The stigma can be either hairy or sticky, or both to trap pollen.
Gynoecium ( / ɡaɪˈniːsi.əm, dʒɪˈniːʃi.əm /; from Ancient Greek γυνή (gunḗ) 'woman, female', and οἶκος (oîkos) 'house'; pl.: gynoecia) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds.
Angiosperms with monoecious flowers often have self-incompatibility mechanisms that operate between the pollen and stigma so that the pollen either fails to reach the stigma or fails to germinate and produce male gametes. This is one of several methods used by plants to promote outcrossing.
1. The receptive tip of the carpel, which receives pollen at pollination and on which the pollen grain germinates. The stigma is adapted to catch and trap pollen, either by combing pollen off visiting insects or by various hairs, flaps, or sculpturings. The stigmas of certain plants show haptotropic movements.
