Periderm vs Rhytidome - What's the difference?
periderm | rhytidome |
Rhytidome has no English definition.
(botany) The outer layer of plant tissue; the outer bark.
(zoology) The perisarc; the hard outer layer of hydroids and other marine animals.
(botany) The dead layers of a plant bark (which (has/is) under(gone/going) secondary growth) external to that of the last formed periderm [http://i.word.com/idictionary/rhytidome].
Rhytidome is likely misspelled.
Rhytidome has no English definition.