-(Aquatic Hyphomycetes in the

This article presents a survey of fungi obtained from soil, water and mixed leaf litter samples taken from the Atlantic Rainforest in the municipality of Cubatão, in the State of São Paulo, during the years of 1993 to 1995. Using different techniques for the isolation of microscopic fungi, a total of 280 taxa was obtained (66 zoosporic fungi, 40 Mucorales, 45 Glomales, 125 anamorphs, three Ascomycota and one Basidiomycota), with 23 species being reported for the first time in Brazil.

Aquatic Hyphomycetes, also named Ingoldian or freshwater fungi, constitute a group of anamorphic fungi that are typically aquatic, producing tetraradiate, sigmoid or spherical conidia on submerged plant debris (leaf litter, petioles, bark, etc.). Mainly occurring in lotic systems, these fungi are considered to be one of the most active groups of organisms in the decomposition of leaf litter, and play a crucial role in the trophic chain. In South America, aquatic Hyphomycetes are mentioned for Argentina, Brazil, Chile, Ecuador, Peru and Venezuela, totalizing the report of about 90 species. Almost all studies are taxonomical, some with proper drawings and complete descriptions, but no keys have been provided yet, nor there is a specific culture collection for preserved strains. The published papers are still sporadic and dispersed, emphasizing a great need to improve the knowledge of the diversity of South American aquatic Hyphomycetes. The present review contents the check list of reported species until now, and has the aim to encourage the research concerned with aquatic Hyphomycetes in non explored regions of the continent.

-(Richness of ingoldian and facultative aquatic fungi in Parque Municipal do Ibirapuera, São Paulo, Brazil). Ten samples of submerged mixed leaves were collected monthly from March 2007 to June 2009 on the margins of five sites in three lakesat Parque Municipal do Ibirapuera, São Paulo, São Paulo State, Brazil. Some abiotic variables were concomitantly measured. At the laboratory, the leaves were washed, fractionated into aliquots (1 cm 2 ), incubated in sterile distilled water for 30 days at 22 o C, and microscopically analysed. Twenty-seven fungal taxa were obtained, being 15 ingoldianand 12 facultatives, with predominance of Lunulospora curvula Ingold, Triscelophorus monosporus Ingold, Tripospermum myrtii (Lind.) S. J. Hughes, Anguillospora longissima (Sacc. et Syd.) Ingold, and Triscelophorus acuminatus Nawawi. ANOSIM analysis revealed that samples taken from several collection sites in different seasons presented more differences than collection sites sampled in the same season. The intense siltation of one sampling site, located immediately after a flotation unit, almost annihilates the improved abiotic conditions, encouraging careful monitoring to maintain the water quality at the entire park. 2 ), incubadas em água destilada esterilizada a 22 o C durante 30 dias e analisadas microscopicamente. Vinte e sete táxons de fungos foram obtidos, sendo 15 de fungos ingoldianos e 12 aquáticos facultativos, com predomínio de Lunulospora curvula Ingold, Triscelophorus monosporus Ingold, Tripospermum myrtii (Lind.) S. J. Hughes, Anguillospora longíssima (Sacc. et Syd.) Ingold e Triscelophorus acuminatus Nawawi. A análise ANOSIM revelou que amostras de locais de coleta em diferentes estações divergiram mais do que entre locais de coleta na mesma estação climática. O intenso assoreamento do local de coleta situado imediatamente após a unidade de flotação quase aniquilou a melhoria das condições abióticas, encorajando o monitoramento cuidadoso para manter a qualidade da água em todo parque. Palavras-chave: águas urbanas, fungos de águas continentais, micota aquática, reservatórios

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