> as lemmas
exodermis
exodermis n. 
/ˌɛksoʊˈdərməs/ Botany a protective outer layer formed beneath root epidermis, as it breaks down, from the outermost cortex. [After German Exodermis (1847 or earlier). Compare French exoderme (P. Vuillemin in De la valeur des caractères anatomiques..tiges des composées (1884) iii. 52).]
Brit. /ˌɛksə(ʊ)ˈdəːmɪs/
, /ˌɛksə(ʊ)ˈdəːmɪs/U.S. /ˌɛksəˈdərməs/
, /ˌɛksəˈdərməs//ˌɛksoʊˈdərməs/ΘΚΠ
the world > plants > part of plant > cell or aggregate tissue > [noun] > tissue > endodermis, pericycle, or exodermis
pericambium1875
bundle-sheath1882
bundle-system1884
exodermis1889
pericycle1890
1889 D. H. Scott in Ann. Bot. 4 149 What we generally term epidermis is here an absorptive structure, but this is only the case in young roots. The older roots cease to be absorptive and require, like sub-aërial organs, a protective dermal structure... This epidermoidal layer, or better exodermis, is especially evident in monocotyledonous roots, which have a persistent cortex, and often no periderm, so that the exodermis here has to form a permanent protective structure.
1919 F. O. Bower Bot. Living Plant v. 72 The outermost layer, lying directly below the piliferous layer, and with its cells alternating with these, is called the exodermis.
1976 P. Bell & D. Coombe tr. Strasburger's Textbk. Bot. (new ed.) 172 The rhizodermis dies with the root hairs, and its place is taken by a typical secondary boundary tissue, the exodermis.
<
as lemmas