摘要：Ectomycorrhizal(ECM) species are poorly known from tropical lowlands of South America. Recent systematic surveys in the reserve Parque Estadual das Dunas do Natal, in the state of Rio Grande do Norte, Brazil, using a purposive sampling approach revealed new and yet undocumented community of ectomycorrhizal fungi in the reserve. Collections made in areas with a ectotrophic tree genera present next to the established walking paths revealed six genera of putative ECM fungi. These fungi belong to the Basidiomycota family Amanitaceae, Boletaceae, Hymenochaetaceae, Russulaceae and Sclerodermataceae, all of which are poorly documented from Brazil. The study contributed to the fungal diversity in an ectotrophic sand dune forest in the northeast Brazil, necessary for better understanding of the role of these organisms and their impact in the ecosystem. Discoveries opened additional questionings about the distribution, ecology and taxonomy of the ectomycorrhizal genera in tropical moist broadleaf forests.
