The article discusses a study which focuses on the bryophyte flora of Lågskär, an isolated lighthouse island in the Åland province of Finland. Topics discussed include a description of the study area, the kinds of bryophyte species found in the area including Amblystegium serpens, Barbula convoluta and Bryum alpinum, and the small size of bryophyte flora in the area. Also mentioned is the diversit of habitat in the area.