Bryophytes of Mona Island Natural Reserve, Puerto Rico

Abstract

This checklist provides in addition to a list of mosses and hepatics, a key to the species. We report 17 moss species of which 9 are new to Mona Island and 3 are new records for Puerto Rico (Fissidens minutus, Plaubelia sprengelii and Brymela callicostelloides). This report represents a 35% increase to the moss flora of Mona Island. Thirteen hepatics are reported of which 8 are new records, representing an increase of 31%. Two new synonyms (Bryum microdecurrens = Bryum coronatum, Riccia brittonii = Riccia elliottii) are included. No hornworts are known for the island.