Source : Webster's Revised Unabridged Dictionary (1913)

Endophloeum \En`do*phl[oe]"um\ ([e^]n`d[=o]*fl[=e]"[u^]m), n.
   [NL., fr. Gr. 'e`ndon within + floio`s bark.] (Bot.)
   The inner layer of the bark of trees.