Synonymy:
Lichen canescens Dicks., Fasc. pl. crypt. Brit. (London) 1: 10 (1785)
Psora canescens (Dicks.) Hoffm., Deutschl. Fl., Zweiter Theil (Erlangen): 165 (1796) [1795]
Lecidea canescens (Dicks.) Ach., Methodus qua omnes detectos Lichenes Secundum Organa Carpomorpha ad Genera, Species et Varietates Redigere atque Observationibus Illustrare Tentavit Erik Acharius: 83 (1803)
Placodium canescens (Dicks.) DC., in Lamarck & de Candolle, Fl. franç., Edn 3 (Paris) 2: 379 (1805)
Lepidoma canescens (Dicks.) Gray, Nat. Arr. Brit. Pl. (London) 1: 462 (1821)
Patellaria canescens (Dicks.) Wallr., Fl. crypt. Germ. (Norimbergae) 1: 386 (1831)
Buellia canescens (Dicks.) De Not., G. bot. ital. 2(1.1): 197 (1846)
Diplotomma canescens (Dicks.) Flot., Übers. Arbeiten Veränd. Schles. Ges. Vaterl. Kultur [27]: 129 (1850) [1849]
Catolechia canescens (Dicks.) Anzi, Comm. Soc. crittog. Ital. 1(fasc. 3): 147 (1862)

Buelliomyces canescentis E.A. Thomas ex Cif. & Tomas., Atti Ist. bot. Univ. Lab. crittog. Pavia, sér. 5 10(1): 45, 71 (1953)

Diploicia canescens subsp. australasica Elix & Lumbsch, Mycotaxon 33: 463 (1988)
Diplotomma canescens subsp. australasica (Elix & Lumbsch) D.J. Galloway, New Zealand J. Bot. 42(1): 115 (2004)

Position in classification:
Diploicia, Caliciaceae, Caliciales, Lecanoromycetidae, Lecanoromycetes, Ascomycota, Fungi

Note:
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