title: A ruby-colored Pseudobaeospora species is described as new from material collected on the island of Hawaii.
abstract: Pseudobaeospora wipapatiae is described as new based on material collected in alien wet habitats on the island of Hawaii. Unique features of this beautiful species include deep ruby-colored basidiomes with two-spored basidia, amyloid cheilocystidia and a hymeniderm pileipellis with abundant pileocystidia that is initially deep ruby in KOH then changes to lilac gray. Phylogenetic analysis of nuclear large ribosomal subunit sequence data suggest a close relationship between Pseudobaeospora and Tricholoma. BLAST comparisons of internal transcribed spacer and 5.8S nuclear ribosomal subunit regions sequence data reveal greatest similarity with existing sequences of Pseudobaeospora species. A comprehensive description, color photograph, illustrations of salient micromorphological features and comparisons with phenetically similar taxa are provided.
authors.affiliation: Department of Biology, San Francisco State University, 1600 Holloway Avenue, San Francisco, California 94132 ded@sfsu.edu.
authors.forename: Dennis E
authors.initials: DE
authors.lastname: Desjardin
authors.affiliation: Department of Biology, University of Hawaii at Hilo, 200 West Kawili Street, Hilo, Hawaii 96720.
authors.forename: Don E
authors.initials: DE
authors.lastname: Hemmes
authors.affiliation: Department of Biology, University of Hawaii at Hilo, 200 West Kawili Street, Hilo, Hawaii 96720.
authors.forename: Brian A
authors.initials: BA
authors.lastname: Perry
mesh_terms: D000363:Agaricales / Q000737:chemistry / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification*; D003116:Color; D017753:Ecosystem; D006254:Hawaii; D062312:Islands; D008969:Molecular Sequence Data; D010802:Phylogeny; D013172:Spores, Fungal / Q000145:classification / Q000235:genetics / Q000254:growth & development / Q000302:isolation & purification
keywords: Hawaiian mycota; alien wet forest; taxonomy