pseudocortex (noun, pl. pseudocortices; variant spelling: pseudocortexes) – a thalline boundary layer in which the hyphae are distinct but not organized into a tissue showing a regular cellular or fibrous structure. Until recently the term was often used in a special sense, now called phenocortex. Related terms: cortex, eucortex, phenocortex, pseudocortex, cone cortex, epicortex, syncortex, ecorticate. This is:part of thallus surface,part of thallus interior. Kind of: cortex.