Biogeographic history of a large clade of ectomycorrhizal fungi, the Russulaceae, in the Neotropics and adjacent regions.

The biogeography of neotropical fungi remains poorly understood. Here, we reconstruct the origins and diversification of neotropical lineages in one of the largest clades of ectomycorrhizal fungi in the globally widespread family Russulaceae. We inferred a supertree of 3285 operational taxonomic units, representing worldwide internal transcribed spacer sequences.

(Boletaceae, Basidiomycota) - a new monotypic sequestrate genus and species from Brazilian Atlantic Forest.

A new monotypic sequestrate genus, is described based on collections from the Neotropical forest of Atlantic forest in Paraíba, Northeast Brazil - an area known for its high degree of endemism. The striking features of this new fungus are the hypogeous habit, the vivid yellow peridium in mature basidiomes, broadly ellipsoid basidiospores with a distinct wall that is ornamented with longitudinal striations and lageniform cystidia with rounded apices. Phylogenetic analysis, based on LSU and regions, showed that the type species, , is phylogenetically sister to the monotypic sequestrate African genus in Boletaceae.

Cantharellaceae of Guyana II: new species of Craterellus, new South American distribution records for Cantharellus guyanensis and Craterellus excelsus, and a key to the Neotropical taxa.

Craterellus olivaceoluteus sp. nov. and Craterellus cinereofimbriatus sp.

Amanita lippiae: a new species from the semi-arid caatinga region of Brazil.

Amanita lippiae is described as a new species from a semi-arid (caatinga) region of northeastern Brazil. It possesses clampless basidia and elongate to nearly cylindrical inamyloid basidiospores, bears irregular remains of universal veil on the stipe bulb and is a gemmatoid species assignable to Amanita sect. Amanita.