@misc{AptrootSpielmann2020, author = {Andr{\´e} Aptroot and Adriano Afonso Spielmann}, title = {Four new Astrothelium species and a Mazaediothecium from V{\´a}rzea areas in Mato Grosso do Sul, Brazil}, booktitle = {Archive for lichenology ; 21}, issn = {1868-4173}, series = {Archive for lichenology}, number = {21}, type = {workingpaper}, pages = {17}, year = {2020}, }