Bryophytes of an area under the phytogeographical domain Cerrado and new records for Maranhao and the Northeast (Brazil)

The study of bryophytes collected in the municipality of Caxias, Maranhao, resulted in 34 species. Twenty-four were of the Division Bryophyta, distributed in 16 genera and 11 families, and 10 species belonging to Marchantiophyta, distributed in eight genera and five families. Of the 34 species identified, Barbula arcuata Gruff. is as new record for northeastern Brazil and eight were new occurrences for Maranhao. These results increase the bryofloristic knowledge in Maranhao and northeastern Brazil.