Musgos Pleurocárpicos da Chapada da Ibiapaba, Ceará, Brasil

in the floristic survey carried out on the ibiapaba plateau , northern ceará, brazil, 24 species of pleurocarpic mosses distributed in nine families and 17 genera were found: of these, nine are new records for ceará, six for the northeast region and lepidopilum brevifolium mitt. is recorded for the first time from brazil. identification keys to the species, diagnostic description, geographic distribution, comments related to the environment, substrate and taxonomic characteristics are supplied. illustrations are provided only for the less illustrated species in the literature.