⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-35179319, and has not been changed.

Atrichum undulatum var. attenuatum Bruch & Schimp. is a synonym of Atrichum cylindricum (Willd. ex F. Weber) G.L. Sm.

This name is a synonym of Atrichum cylindricum (Willd. ex F. Weber) G.L. Sm..

The record derives from Tropicos which reports it as a synonym (record 35179319) with original publication details: Bryol. Eur. 4: 236 (fasc. 21--22 Mon 8) 236 1844.