I.  Kautmanová, Tom?ovský, M., Dueñas, M., and Martín, M. P., ?European species of Clavaria (Agaricales, Agaricomycetes) with dark basidiomata?a morphological and molecular study?, Persoonia: Molecular Phylogeny and Evolution of Fungi, vol. 29, pp. 133-145, 2012.