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Feuerstein, S. C.; Koch, N. M.; Lucheta, F.; Vargas, V. M. F.; Da Silveira, R. M. B.

A New Species of Graphis (Graphidaceae: Lichenized Ascomycota) and a Revised Key of the Genus in Rio Grande Do Sul, Southern Brazil

. Phytotaxa 2016, 289, 271–278.