Isolectotype of Trachyloma helmsii Müll.Hal., Hedwigia 37: 171. 1898.
Lectotype of this name in H-Brotherus designated by Miller & Manuel (1982. p. 297). They place it in synonymy with T. planifolium (Hedw.) Brid.
Supplementary remarks:
Collecting details added from protologue
Gibb ES, April 2014
Type:
Isolectotype of Trachyloma helmsii Mull.Hal., Hedwigia 37: 171 (1898)