Anthers sessile, circular, 2-loculed, introrse, connate into a synandrium, dehiscence longitudinal.

药无梗，圆，2室，，生的成为聚药，开纵。

Anthers 6, opposite perianth segments, attached at lobe sinus, lobelet sinus, or lobe apex of corona, dorsifixed, introrse.

药6，对生于，附着在凹缺，小凹缺，或副冠先端的，背着，。