Ovary 1-celled with the ovules at the centre or base. [Styracaceæ], [333]
Ovary 2-celled with a single ovule in each cell. [Polygalaceæ], [120]
Ovary 3–many-celled.
Stamens free or nearly free from the corolla; style single. [Ericaceæ], [309]
Stamens free from the corolla; styles 5. [Oxalis], in [Geraniaceæ], [105]
Stamens inserted on the base or tube of the corolla.
Filaments monadelphous; anthers 1-celled, kidney-shaped. [Malvaceæ], [96]
Filaments 1–5-adelphous at base; anthers 2-celled.
Calyx free from the ovary. [Ternstrœmiaceæ], [96]
Calyx coherent with the ovary or with its base. [Styracaceæ], [333]