Basionym Name:Heterothecium sayeri Müll. Arg., Flora, Regensburg 70: 338 (1887)
Homotypic synonyms:Lecidea sayeri (Müll. Arg.) Shirley, Proc. R. Soc. Qd. 6: 184 (1889)Letrouitia sayeri (Müll. Arg.) Elix, Australas. Lichenol. 61: 23 (2007)Lopadium sayeri (Müll. Arg.) Zahlbr., Cat. Lich. Univers. 4: 313 (1926)