Liverworts and hornworts of Barro Colorado Island, Panama

Eighty-five species of liverworts and one hornwort are reported from Barro Colorado Island, Panama. About 80 % of the species are Lejeuneaceae Cavers, reflecting the predominance of members of this family in tropical lowland regions. Most of the species have wide neotropical or pantropical distributions. One species, Lejeunea tamasii M.E.Reiner, N.Salazar & C.Chung, is only known from Barro Colorado Island. The island is rich in epiphyllous taxa. Total bryophyte diversity (167 spp.) of the island is noteworthy given its limited surface area. Aneura latissima Spruce and Lejeunea pulverulenta (Steph.) M.E.Reiner are reported new to Central America.