Ptychomitrium balansae Besch. in Mém. Soc. Sci. Nat. Cherbourg 21: 261. 1877 .

= Ptychomitrium muelleri (Mitt.) A. Jaeger, fide CAO & al. (2001: 522).

Type citation. – “Yaguaron, sur les toits, mars 1877, Balansa 1235 ”.

Type specimens. – Syntypes: Yaguaron, sur les toits, mai 1877, Balansa 1235 (Herb. Boiss., G00040454; Herb. DC. [1878], G00040453) .

Type designation. – CAO & al. (2001: 522): isotype (BM), holotype location not indicated.