phelloderm
nounA tissue produced inwardly by the cork cambium.
nounA definite layer of green parenchymatous cells beneath the cork, formed from the inner layers of the phellogen. Phelloderm may be demonstrated in the stems of Ribes, Lonicera, Spiræa, Deutzia, etc.
nounA layer of green parenchimatous cells formed on the inner side of the phellogen.
nounThe innermost