This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Receptacle growths gynophore androgynophore anthophore androphore hypanthium compare with stipitate gynoecium and monadelphous stamens definitions as in APWeb.svg en Receptacle growths as separate structures in flower Gynophore androgynophore anthophore androphore hypanthium not all hypanthia are composed only of receptacular tissue