title: Sequestrate fungi from Patagonian Nothofagus forests: Cystangium (Russulaceae, Basidiomycota).
abstract: Six species of Cystangium, a genus of sequestrate taxa related to Russula, were collected in Patagonia (Argentina and Chile) during autumn 2001. Two species, C. depauperatum Singer & A.H. Sm. and C. nothofagi (E. Horak) Trappe, Castellano & T. Lebel, were already known from this region, while four new species, C. domingueziae, C. gamundiae, C. grandihyphatum and C. longisterigmatum, are described, illustrated and a key to the species is provided. In addition, sequences of the ITS (rDNA) region were obtained to explore the phylogenetic relationships of our South American Cystangium species.
authors.affiliation: PPGBOT, Department of Botany, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil 91501-970 Lt_pereira@yahoo.com.br.
authors.forename: Larissa
authors.initials: L
authors.lastname: Trierveiler-Pereira
authors.affiliation: Department of Plant Pathology, University of Florida, Gainesville, Florida 32611.
authors.forename: Matthew E
authors.initials: ME
authors.lastname: Smith
authors.affiliation: Department of Forest Ecosystems and Society, Oregon State University, Corvallis, Oregon 97331.
authors.forename: James M
authors.initials: JM
authors.lastname: Trappe
authors.affiliation: Instituto Multidisciplinario de Biología Vegetal (CONICET), Universidad Nacional de Córdoba, 5000 Cordoba, Argentina.
authors.forename: Eduardo R
authors.initials: ER
authors.lastname: Nouhra
mesh_terms: D001118:Argentina; D001487:Basidiomycota / Q000145:classification / Q000235:genetics / Q000254:growth & development / Q000302:isolation & purification*; D002677:Chile; D065928:Forests; D008969:Molecular Sequence Data; D010802:Phylogeny; D013172:Spores, Fungal / Q000145:classification / Q000235:genetics / Q000254:growth & development / Q000302:isolation & purification; D014197:Trees / Q000382:microbiology*
keywords: Russulales; hypogeous fungi; mycorrhiza; truffle-like fungi