Cliostomum violascens (Müll. Arg.) Fryday Lichenologist44: 493. 2012 Basionym: Patellaria violascens Müll. Arg., Nuovo G. Ital.21 : 26. 1889.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith