The Plant List — A working list for all plant species

⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35144426, with some changes.

M Pyramidium tetragonum (Brid.) Brid. is a synonym of Physcomitrium tetragonum (Brid.) Fürnr.

This name is a synonym of Physcomitrium tetragonum (Brid.) Fürnr..

The record derives from Tropicos which reports it as a synonym (record 35144426) with original publication details: Bryol. Univ. 1: 108 108 1826.