1. Results The secondary structure of the roots of Taxus chinensis var. mairei consisted of the periderm and vascular cylinder (stele).

2. The abscission layer is mostly lignified and possesses basally a periderm, it remains attached to the main branch and forms a protective tissue.

3. In older trees, Bark is usually divided into inner Bark, consisting of living phloem, and outer Bark, consisting of the periderm (the phelloderm, cork …