Template:Aptroot & da Silva Cáceres, 2014
- Aptroot, A.; da Silva Cáceres, M.E. 2014: A refined species concept in the tropical lichen genus Polymeridium (Trypetheliaceae) doubles the number of known species, with a worldwide key to the species. Nova hedwigia, 98(1-2): 1–29. DOI: 10.1127/0029-5035/2013/0143