⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35147573, with some changes.

Guembelia ambigua (Sull.) Müll. Hal. is a synonym of Grimmia apocarpa var. ambigua (Sull.) G.N. Jones

This name is a synonym of Grimmia apocarpa var. ambigua (Sull.) G.N. Jones.

The record derives from Tropicos which reports it as a synonym (record 35147573) with original publication details: Syn. Musc. Frond. 2: 649 649 1851.