Considering the difference of the shape change of their floral primordium apex etc, Euryale should be more evolutional than Nymphaea, and it shoud be an evolutional group in Nymphaeaceae.4.
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释义
根据睡莲属与芡属花器官发生过程中花原基顶端的形态变化等特点,认为在系统发育上,芡属要比睡莲属进化,芡属应是睡莲科中较为进化的类群。
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