这种器官类似于位于主茎末端的锥形棒状物，可能用来刺激雌性或者将雌性拉近身边——Long表示，这些都还只是猜测。

These organs, which resemble a spiked club at the end of a stalk, may be used to stimulate a female or to pull her closer-though these are still assumptions, Long said.

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主茎出叶与穗分化有良好对应关系。

There was a good corresponding relationship between the main stem leafing and the spike differentiation.

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一些腋芽继续生长形成主茎的第一级分枝。

Subsequent growth of some of the axillaries results in first-order branching of the main stem.

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