Byssus antiquitatis Linnaeus, Species Plantarum 2: 1168. 1753.

"Habitat in aedium muris antiquissimis." RCN: 8404.

Type not designated.

Original material: none traced.

Current name: Lepraria antiquitatis (L.) Ach. (Leprariaceae).

Note: Ross & Irvine (in Taxon 16: 185. 1967) stated that the application of the name is uncertain. See Laundon (in Lichenologist 24: 340. 1992), who suggested that B. antiquitatis L. might be of mineral origin.