多孔式内含韧皮部 foraminated included phloem
同心式的内含韧皮部 concentric included phloem
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枝横切面特征中韧皮部细胞形状和排列松紧不一，木射线细胞中内含物仅云南红豆杉有。
The characters of stem transections are the differences on the size and rang of the phloem cells, the inclusions in xylem ray cells are only found from Taxus yunnanensis.
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