title: Cortinarius section Sanguinei in North America.
abstract: The North American species of Cortinarius section Sanguinei were studied using morphological characters and ITS and RPB2 sequence data. Several type collections also were examined. Four species were identified: C. harrisonii sp. nov, C. neosanguineus sp. nov., C. sanguineus and C. sierraensis comb. nov. Of these, C. sanguineus also occurs in Europe together with C. puniceus, a fifth member of the section. Typical features of these species include ± red, fairly small basidiomata, stipe basal mycelium often with yellow to reddish yellow tints, amygdaloid to ellipsoid spores, and aniline-red lamellar trama and pileipellis hyphae when mounted in KOH. Two other species with red lamellae C. marylandensis comb. nov. and C. smithii stat. nov. & nom. nov. also are discussed.
authors.affiliation: Department of Biosciences, Plant Biology, P.O. Box 65, FI-00014 University of Helsinki, Finland. Tuula.Niskanen@cortinarius.fi
authors.forename: Tuula
authors.initials: T
authors.lastname: Niskanen
authors.forename: Kare
authors.initials: K
authors.lastname: Liimatainen
authors.forename: Joseph F
authors.initials: JF
authors.lastname: Ammirati
authors.forename: Karen
authors.initials: K
authors.lastname: Hughes
mesh_terms: D055363:Cortinarius / Q000145:classification* / Q000166:cytology / Q000235:genetics; D004271:DNA, Fungal / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000235:genetics; D048690:Fruiting Bodies, Fungal; D005656:Fungal Proteins / Q000235:genetics; D025282:Mycelium; D009656:North America; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D013045:Species Specificity
chemical_list: D004271:DNA, Fungal; D004275:DNA, Ribosomal; D021903:DNA, Ribosomal Spacer; D005656:Fungal Proteins