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Male flower: calyx-lobes 5 or 6; disk of 5 or 6 segments; stamens 5 or 6, free or rarely united by the filaments; anthers dehiscing vertically or horizontally; pollen grains more or less globose, colporate.Female flower: calyx-lobes 5 or 6; disk usually as in male; ovary of 3-12 carpels; styles mostly bifid, sometimes entire, often thickened and fleshy.Fruit capsular or baccate; seeds trigonous.
Grady L. Webster (Tue,) studied this question.