Stjärtmossa (Pterygoneurum ovatum)

Focus-stacked macro of Pterygoneurum ovatum, stjärtmossa in Swedish, a tiny and rare moss species growing on calcareous, fine-grained soil. The image shows a mature capsule with curved seta and open calyptra, highlighting its delicate morphology. An uncommon bryophyte, well-suited for conservation materials, botanical reference, and detailed macro collections.