The purpose of this study was to identify and revise bryophyte specimens collected by Hans Buch in the Bromarv area in southwest Finland and additionally examine all the collections in Bromarv kept in Finnish herbaria, especially in Botanical Museum of Helsinki University. A total of 2920 specimens were studied, of which 818 specimens were unidentified in Hans Buch reliquiae. The major part of these collections was made by Hans Buch and Ole Sundvik.