Mnium fissum Linnaeus, Species Plantarum 2: 1114. 1753, nom. cons.

"Habitat in Europae riguis." RCN: 8025.

Conserved type (Stotler & Crotz in Taxon 39: 290. 1990): [icon] "Jungermannia terrestris, repens, foliis ex rotunditate acuminatis, bifidis, apertura pene visibili" in Micheli, Nov. Pl. Gen.: 8, t. 5, f. 14. 1729.

Generitype of Mnium Linnaeus, nom. rej. (vide Proskauer in Taxon 12: 200. 1963).

Current name: Calypogeia fissa (L.) Raddi ( Calypogeiaceae).

Note: Mnium Linnaeus, nom. rej. against Mnium Hedw., nom. cons.