periphysis
/pɪˈrɪfɪsɪs/Mycology
noun
A hypha within or near the ostiole of a perithecium or pycnidium. Usually in plural.
Origin
Late 19th century; earliest use found in Henry Garnsey (1826–1903). From scientific Latin periphysis from ancient Greek περίϕυσις overgrowth from περι- + ϕύσις growth.