Definitions for "Velamen"
Keywords:  epiphytic, orchid, corky, aerial, root
The thick layer of cork- like, water-absorbing cells surrounding the roots of epiphytic orchids.
n. (L. velamen, covering) a membrane; water-storing tissue in the outer layer of some roots.
The thick corky layer of cells covering the arial roots of epiphytic orchids, the function of which is to absorb moisture from the atmosphere and attachments to supports.