Umbilicaria crustulosa, the crusty navel lichen,Biolib is a lichen of the genus Umbilicaria in the family Umbilicariaceae.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.htmlFrey (1931) Hedwigia, Vol.: 71 p. 110Plants Database
Distribution This species is present in Arctic, Europe, temperate and tropical Asia, Africa and North America. It grows on rocks.
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