Homotypic Synonyms See Note

Basionym Name:
Sagedia impressa Müll. Arg., Flora, Regensburg 55: 504 (1872)

Homotypic synonyms:
Involucrothele impressa (Müll. Arg.) Servít, Českoslov. Lišejn. Čeledi Verrucariaceae: 169 (1954)
Parabagliettoa impressa (Müll. Arg.) Orange, Revisions of British and Irish Lichens 31: 97 (2023)
Thelidium impressum (Müll. Arg.) Zschacke, Hedwigia 62: 124 (1920)
Verrucaria impressa (Müll. Arg.) Stizenb., Ber. Tät. St Gall. naturw. Ges.: 497 (1882)