Lichen calcareus Linnaeus, Species Plantarum 2: 1140. 1753, nom. cons. "Habitat in Europae rupibus marmoreis." RCN: 8167. Conserved type (Jørgensen & al. in Taxon 43: 650. 1994): Sweden. Gotland, Visby, 26 Jun 1918, Malme, Lich. Suec. Exsicc. No. 772 (UPS). Current name: Aspicilia calcarea (L.) Körb. (Hymeneliaceae). Note: See discussion by Jørgensen & al. (in Bot. J. Linn. Soc. 115: 283. 1994), who concluded that none of the original elements agreed with current usage, and successfully proposed the name for conservation, with a conserved type.

Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part L), pp. 610-650 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 624, DOI: 10.5281/zenodo.291971