Thüs, H., Killmann, D., Leh, B., & Fischer, E. (2018).

Verrucaria hunsrueckensis (Verrucariaceae, lichenized Ascomycota), a new rare species with exceptionally slender ascospores from Germany

. Phytotaxa, 345(1), 26–34. https://doi.org/10.11646/phytotaxa.345.1.3