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

花药无梗，圆，2，，合生的成为聚药，开纵。

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

花药6，对生于花，着在凹缺，小凹缺，或副花冠先端的，背着，。