- ↑ Vain. in Vainio (1920) Ann. Acad. Sci. Fenn., Ser. A, Vol.: 15
- ↑ Henssen in Henssen (1963) Symb. Bot. Upsal., Vol.: 18 p. 1-123
- ↑ 3.0 3.1 Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)
- ↑ LIAS: A Global Information System for Lichenized and Non-Lichenized Ascomycetes. Rambold G. (lead editor); for detailed information see http://liaslight.lias.net/About/Impressum.html and http://liasnames.lias.net/About/Impressum.html, 9 Marso 2011