PARELLA

{ ‖Pa‐rel″la (?), ‖Pa′relle (?), } n. [[Cf. F. parelle.]] (Bot.) (a) A name for two kinds of dock (Rumex Patientia and R. Hydrolapathum). (b) A kind of lichen (Lecanora parella) once used in dyeing and in the preparation of litmus.