Phylogeny of Pluteus section Celluloderma including eight new species from Brazil.

A general phylogeny of Pluteus section Celluloderma based on nuc rITS1-5.8-ITS2 (ITS) barcode sequences is presented with description of eight new species from Brazil supported by morphological and molecular data: P. brunneocrinitus, P.

Neonothopanus gardneri: a new combination for a bioluminescent agaric from Brazil.

The bioluminescent agaric, Agaricus gardneri Berk., was rediscovered recently in central Brazil. The new combination, Neonothopanus gardneri, is proposed for this long-forgotten taxon supported by morphological and molecular data.

Phylogeny of the Pluteaceae (Agaricales, Basidiomycota): taxonomy and character evolution.

The phylogeny of the genera traditionally classified in the family Pluteaceae (Agaricales, Basidiomycota) was investigated using molecular data from nuclear ribosomal genes (nSSU, ITS, nLSU) and consequences for taxonomy and character evolution were evaluated. The genus Volvariella is polyphyletic, as most of its representatives fall outside the Pluteoid clade and shows affinities to some hygrophoroid genera (Camarophyllus, Cantharocybe). Volvariella gloiocephala and allies are placed in a different clade, which represents the sister group of Pluteus, and a new generic name, Volvopluteus, is proposed to accommodate these taxa.

Notes on Pluteus (Pluteaceae, Agaricales) from Brazil including two new species and a new record.

Two new species of Pluteus, P. densifibrillosus and P. puttemansii, are described and illustrated from specimens collected in two remnants of the Atlantic forest in the city of São Paulo, SP, Brazil.

New species and new combinations of Calliderma (Entolomataceae, Agaricales).

Two new species of Calliderma, C. fibulatum and C. rimosum, collected in fragments of the Atlantic Rainforest, São Paulo, Brazil, are described and compared with similar taxa including Entoloma pruinatocutis, Inopilus entolomoides and E.

Agaricales Fungi from atlantic rain forest fragments in Minas Gerais, Brazil.

Two Atlantic Rain Forest fragments in Minas Gerais state were studied to access their Agaricales fungal richness. A total of 187 specimens were collected and 109 species, 39 genera, and eight families were identified. Thirty-three species were cited for the first time in Brazil.

Amanita viscidolutea, a new species from Brazil with a key to Central and South American species of Amanita section Amanita.

We described and illustrated Amanita viscidolutea sp. nov. from specimens collected in the state of Rio Grande do Norte, northeastern Brazil.

Armillaria paulensis: a new South American species.

Armillaria paulensis, morphologically distinct from other Armillaria species, is described from Brazil. It is characterized by the dimension of the basidiospores, the pinkish colour of the lamellae; stipe colour ranging from pinkish at the apex, dark greyish brown under the annulus and olivaceous at the base, where it is concolourous, with the pilear surface. Relationships based on sequences of ITS with African, Australian and South American species showed its closeness to A.

Bioluminescent Mycena species from São Paulo, Brazil.

Six species of bioluminescent agarics are described and illustrated from a single site in primary Atlantic Forest habitat in the Parque Estadual Turistico do Alto Ribeira, Sao Paulo State, Brazil. These include two new taxa of Mycena, viz. M.

Screening of Brazilian basidiomycetes for antimicrobial activity.

A total of 103 isolates of basidiomycetes, representing 84 species from different Brazilian ecosystems, were evaluated for their antifungal and antibacterial activity in a panel of pathogenic and non-pathogenic microorganisms. Tissue plugs of the fruiting bodies were cultivated in liquid media and the whole culture extracted with ethyl acetate. Crude extracts from Agaricus cf.

Determination of biological species and analysis of genetic variability by RAPD of isolates of Pleurotus subgenus Coremiopleurotus.

Isolates of Pleurotus cystidiosus and P. smithii were studied to verifie the occurrence of P. cystidiosus instead of P.