Basionym Name:Platygrapha tumidula C. Knight & Mitt., Trans. Linn. Soc. London 23: 103 (1860)
Homotypic synonyms:Platygraphis tumidula (C. Knight & Mitt.) Hook. f., Handb. N.Z. Fl.: 588 (1867)Schismatomma tumidulum (C. Knight & Mitt.) Zahlbr., Cat. Lich. Univers. 2: 565 (1923)