Selection of a lectotype for the name Tetraphis pellucida Hedw. (Bryophyta, Tetraphidaceae) is necessary as two original Hedwig herbarium sheets, containing multiple stems, are present in the Hedwig-Schwägrichen collection housed in G. Protologue information and label information do not entirely correspond for either of the herbarium sheets, however a stem of Tetraphis pellucida from one of the two sheets resembles the stem depicted in Hedwig's original illustration. This stem conforms to the protologue as well as to the modern concept of this taxon and is proposed as the lectotype for this name herein.