Criteria for included bryophyte species

The present World Red List of Bryophytes includes 92 species. This is merely a selection of targeted species in order to show examples of threatened species world-wide. This means that this list represent only a small subset of globally threatened species, a selection which give the public a rough idea of what kind of mosses, liverworts and hornworts are threatened by extinction. The selection of species was based on the following four criteria:

1) the species must be threatened world-wide;
2) the species must be confined to a threatened habitat;
3) the species must have a narrow distribution range;
4) the species is not overlooked.