Flavia Rodrigues Barbosa

Alguns fungos conidiais aquáticos-facultativos do bioma Caatinga

During study of conidial fungi on submerged plant debris in Serra da Fumaca and Serra da Jiboia, Bahia, 17 species were identified. These species included five new records: Actinocladium verruculosum for the American continent, Xylomyces aquaticus for the Neotropics, Actinocladium longiramosum and Dischloridium inaequiseptatum for South America and Cacumisporium pleuroconidiophorum for Brazil. Descriptions, illustrations, geographic distributions and comments are provided for the aforementioned species and a list of all of the species is included.

Some Freshwater Fungi from the Brazilian Semi-Arid Region, Including Two New Species of Hyphomycetes

Abstract A preliminary study on freshwater fungi in a stream in the Brazilian semi-arid region was performed. Samples of submerged plant debris were randomly collected every three months from 2007 to 2009 in a small stream surrounded by riparian vegetation in the “Serra da Jibóia” Bahia state. We described and illustrated two new species of hyphomycetes, Dactylaria saccardoana and Quadracaea stauroconidia, and reported one hundred and fifty-one taxa that consist of both meiosporic and mitosporic fungi.

Fungos anamórficos (Hyphomycetes) no Semi-árido do Estado da Bahia, Brasil

During a survey of the anamorphic fungi associated with leaf litter of different plants from the semi-arid region of Bahia state, 23 species belonging to 19 genera were found. One species is recorded for the first time for Bahia and three for Brazil, respectively: Drechslera victoriae (F. Meehan & H.C. Murphy) Subram. & B.L. Jain, Ochroconis crassihumicola (Matsush.) de Hoog & Arx, Pyricularia caffera Matsush. and Tretopileus sphaerophorus (Berk & M.A. Curtis) Hughes & Deighton. Descriptions, comments and illustrations are provided for these species.

New species and new records of freshwater ascomycetes from Brazil and Costa Rica

During independent surveys for freshwater ascomycetes in Brazil and Costa Rica, two new species, Torrentispora pilosa and Vertexicola ascoliberatus, and nine previously described species were recovered. Among the described species, Annulatascus biatriisporus, Anthostomella aquatica, Tamsiniella labiosa and Torrentispora crassiparietis are reported for the first time from the western hemisphere, Aniptodera chesapeakensis, Chaetosphaeria lignomollis and Jahnula seychellensis are new records for South America and Annulatascus velatisporus and Ophioceras venezuelensis are reported for the first time for Brazil. The description of the genus Torrentispora is emended to accommodate T. pilosa. The new species are described and illustrated and a brief description is provided for all new records.

The genus Stachybotrys (anamorphic fungi) in the semi-arid region of Brazil

(O genero Stachybotrys (fungos anamorficos) na regiao semi-arida do Brasil). Stachybotrys e caracterizado por apresentar conidioforos macronematicos, mononematicos simples ou ramificados, celulas conidiogenicas evidentes, terminais e fialidicas e conidios asseptados, reniformes, elipsoides a esfericos, lisos ou verrucosos, produzidos em mucilagem. No Brasil ja foram relatadas oito especies, ocorrendo no solo, no ar e em material vegetal em decomposicao. Durante investigacao de fungos conidiais associados a serapilheira em areas do semi-arido brasileiro foram encontradas nove especies: S. bisbyi (Sriniv.) G.L. Barron, S. chartarum (Ehrenb.) S. Hughes, S. globosa P. C. Misra & S. K. Srivast., S. kampalensis Hansf., S. longispora Matsush., S. nephrospora Hansf., S. nilagirica Subram., S. parvispora S. Hughes e S. verrucispora Matsush., dentre estas S. nilagirica constitui um novo registro para o Brasil. Descricoes, comentarios, distribuicao geografica e ilustracoes sao apresentadas para as especies citadas. Chave de identificacao para as especies registradas no Brasil e apresentada.