stamen

Stamens 5 to many, adnate with perigone.

5到很多，生于花。

Stamens 5 to numerous, free or inserted in perigone tube.

5到多数，离生或着生于花筒部。

Then five petal primordia arised simultaneously in a whorl arrangement, followed by eight stamen primodia arised and last by pistil primodium.

花具有发育不完全之雌；两性花之虽然正常发育，但花丝不伸长且花药不开裂。