Uma nova avaliação da brioflora da Serra dos Carajás

Abstract

Partial results of a survey of bryophytes in Serra dos Carajás, where a large amount of ores, such as iron, manganese, copper, gold and nickel, occur, indicated higher specific diversity in the Canga (iron ore), preference for the rupestrian habitat and Campylopus savanarum (C. Müll.) Mitt. as the most frequent species. This work continues this research that has as main objectives the determination of the diversity of bryophytes in the different ecosystems of the Serra and their possible use as metal indicators. The material studied was collected in several ecosystems of Serra dos Carajás and its identification was according to the usual procedures in taxonomy. A comparison with previous results is made, finding a higher specific diversity in the dryland forest and Pilosium chlorophyllum (Homsch.) C. Müll. as the most frequent species. Fourteen species are added to the 62 previously identified.