Tertiary veins are percurrent and randomly reticulate, occasionally percurrent or ad-medial.Highest vein order is 4° or 5°.
二级急转曲行或半直行,叶分支一般为4级,少数5级。
Tertiary veins are percurrent and randomly reticulate, occasionally percurrent or ad-medial.Highest vein order is 4° or 5°.
二级急转曲行或半直行,叶分支一般为4级,少数5级。
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