Then five petal primordia arised simultaneously in a whorl arrangement, followed by eight stamen primodia arised and last by pistil primodium.
雄花具有发育不完全之雌蕊；两
花之雄蕊虽然正常发育，但花丝不伸长且花药不开裂。
心，子;Then five petal primordia arised simultaneously in a whorl arrangement, followed by eight stamen primodia arised and last by pistil primodium.
雄花具有发育不完全之雌蕊；两花之雄蕊虽然正常发育，但花丝不伸长且花药不开裂。
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