⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-35176804, with some changes.
This name is a synonym of Plagiothecium denticulatum subsp. donnianum (Sm.) Giacom..
The record derives from Tropicos which reports it as a synonym (record 35176804) with original publication details: J. Proc. Linn. Soc., Bot. 4: 88 88 1859.