⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35104133, with some changes.

Hypnum chapmannii Duby is a synonym of Plagiothecium chapmannii (Duby) A. Jaeger

The record derives from Tropicos which reports it as a synonym (record 35104133) with original publication details: Flora 58: 285 285 1875.