epibleman.

/ɛpɪˈbliːma/Etymology: modern Latin, < Greek ἐπίβλημα that which is thrown over, < ἐπί upon + βάλλειν to throw.
Botany.
1861 R. Bentley i. i. 41 The roots of plants are invested by a modified epidermal tissue to which the term Epiblema has been given by Schleiden.
This entry has not yet been fully updated (first published 1891; most recently modified version published online June 2018).