Brioflora da ilha de Marajó - Chaves

Abstract

In the municipality of Chaves, Marajó Island (PA), samples of bryophytes (mosses and liverworts) were collected in order to determine the diversity of the brioflora, in continuation to the project that aims to study this group in all municipalities of Marajó Island. The collected material is being identified, at specific level, with the help of taxonomic keys and/or comparison with reference material. So far, 09 families of mosses have been identified: Sematophyllaceae, Thuidiaceae, Pottiaceae, Fissidentaceae, Bryaceae, Leucobryaceae, Calymperaceae, Hookeriaceae, Hypnaceae. Within the families, the species that stood out by the number of occurrences were: Taxithelium planum (Brid.), Mitt., Sematophyllum subsimplex (Hedw.) Mitt., Hyophila involuta (Hook.) Jaeg., Octoblepharum albidum Hedw. Var albidum, Calymperes palisotti subsp. richardii (C. Muell.) S. Edwards and Bryum apiculatum Schwaegr., presented in this paper with taxonomic comments and photomicrographs.