资料来源 : pyDict

软木皮层,绿皮层

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Phelloderm \Phel"lo*derm\, n. [Gr. ? cork + -derm.] (Bot.)
   A layer of green parenchimatous cells formed on the inner
   side of the phellogen.