Gynostegium

Gynostegium [ Botany ]	Dictionary of botanic terminology - index of names
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(In Asclepiadaceae family) The gynostegium is a characteristic and complex structure formed by the fusion of the stamens with the stigma.

The gynostegium is a typical feature of members of the Milkweed family (Asclepiadaceae). It is a complex structure formed by the fusion of the stamens, styles, and stigmatic surfaces. The gynostegium is commonly provided with colourful and variously shaped appendages (see: Annulus, Corona) and along with the calyx and corolla contribute the give the flower some inimitable and distinctive shape that serve to lead insects to nectar cavity so that pollination is most likely to happen.

The gynostegium is also the most important factor used for Asclepiadaceae classification.

Compare with: Column (The central part of gynostegium formed by the fusion of the stamens only)

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