Plagiomnium undulatum?

Plagiomnium undulatum?

Observation - Plagiomnium undulatum?. Description: Found beside stream in calcareous woodland. Never seen anything like this before. Lvs approx 1-2cm long. It looks quite like this in my book. Any thoughts? Im afraid the photo isnt good enough to see whether the leaves are toothed or not. Thanks.

Found beside stream in calcareous woodland. Never seen anything like this before. Lvs approx 1-2cm long. It looks quite like this in my book. Any thoughts? Im afraid the photo isnt good enough to see whether the leaves are toothed or not. Thanks.