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An inventory of Ingoldian fungi from four localities of semi-arid region, Brazil (Brejo Paraibano-PB, Serra da Jiboia-BA, Chapada do Araripe and Serra de Ibiapaba-CE) is presented. Fungi were obtained from samples of foam and submerged leaves collected in water bodies. Twenty-seven taxa of Ingoldian fungi were found and of these, 22 are new records: american continent (3), Neotropics (1), South America (3), Brazil (5), Brazilian semi-arid region (7), Ceara state (2) and Paraiba state (1). Description, illustration, geographical distribution and commentary are presented for all species found.