<pathology> Tissue containing parenchyma like cells, in the bark of tree roots and shoots. Produced by cell division in the phellogen. ... (18 Nov 1997) ... Found on http://www.encyclo.co.uk/local/20973
Phel'lo·derm noun [ Greek ... cork + -derm .] (Botany) A layer of green parenchimatous cells formed on the inner side of the phellogen. Found on http://www.encyclo.co.uk/webster/P/71