** Frullania ornithocephala var. retusa S.Hatt. ex Chuah-Pet.,

Polish Bot. J. 56 (1): 21, 2011, nom. inval. ICN Art. 38.1(a); no description (see Chuah-Petiot 2011).

NOTE: Apparently in error for Frullania ornithocephala f. retusa S.Hatt., J. Hattori Bot. Lab. 40: 491, 1976 (see Hattori 1976).