Feuerstein, S. C., Koch, N. M., Lucheta, F., Vargas, V. M. F., & Da Silveira, R. M. B. (2016).
A new species of Graphis (Graphidaceae: Lichenized Ascomycota) and a revised key of the genus in Rio Grande do Sul, southern Brazil
.
Phytotaxa,
289(3), 271–278. https://doi.org/10.11646/phytotaxa.289.3.7