Cambium
01
形成層, 骨膜の内層
the inner layer of the periosteum
02
形成層, 分裂組織
a layer of actively dividing cells in plants, responsible for secondary growth by producing new xylem and phloem tissues
例
The vascular cambium in trees adds layers of wood and bark each year, contributing to trunk growth.
木の維管束形成層は、毎年木材と樹皮の層を追加し、幹の成長に寄与します。
