Vascular trachied, fibretracheid and libriform wood fibres were also found.
一端为单穿孔板,另一端为梯状穿孔板的导管;
Vascular trachied, fibretracheid and libriform wood fibres were also found.
一端为单穿孔板,另一端为梯状穿孔板的导管;
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