Ahti, T. and Sipman, H. J. M. (2013) “Ten new species of Cladonia (Cladoniaceae, Lichenized Fungi) from the Guianas and Venezuela, South America”, Phytotaxa. Auckland, New Zealand, 93(1), pp. 25–39. doi: 10.11646/phytotaxa.93.1.2.