⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35147922, with some changes.

Gymnostomum quadratum (Hook.) Hook. is a synonym of Bartramia compacta Hornsch.

This name is a synonym of Bartramia compacta Hornsch..

The record derives from Tropicos which reports it as a synonym (record 35147922) with original publication details: Musci Exot. 2(Append.): 2 2 1820.