title: New Porcini (Boletus sect. Boletus) from Australia and Thailand.
abstract: Boletus albobrunnescens and B. austroedulis are described as new species in section Boletus from Thailand and Australia respectively. The former is easily characterized by the pure white basidiomata that stain brown. Boletus austroedulis has a gray-brown, slightly rugulose pileus with hymeniform pileipellis producing pileocystidia, and the stipe is only apically reticulate if at all. These new species represent ancient lineages inferred from prior molecular phylogenetic analyses.
authors.affiliation: Institute of Systematic Botany, The New York Botanical Garden, Bronx, New York 10458 rhalling@nybg.org.
authors.forename: Roy E
authors.initials: RE
authors.lastname: Halling
authors.affiliation: Department of Biology, San Francisco State University, 1600 Holloway Ave., San Francisco, California 94132.
authors.forename: Dennis E
authors.initials: DE
authors.lastname: Desjardin
authors.affiliation: Queensland Herbarium, Mt Coot-tha Road, Toowong, Brisbane, Qld 4066, Australia.
authors.forename: Nigel
authors.initials: N
authors.lastname: Fechner
authors.affiliation: PO Box 672, Gualala, California 95445.
authors.forename: David
authors.initials: D
authors.lastname: Arora
authors.affiliation: Faculty of Agricultural Technology, King Mongkut's Institute of Technology, Ladkrabang, Bangkok, Thailand.
authors.forename: Kasem
authors.initials: K
authors.lastname: Soytong
authors.affiliation: Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3DS, UK.
authors.forename: Bryn T M
authors.initials: BT
authors.lastname: Dentinger
mesh_terms: D000363:Agaricales / Q000145:classification* / Q000166:cytology / Q000235:genetics / Q000302:isolation & purification; D001315:Australia; D001483:Base Sequence; D004271:DNA, Fungal / Q000737:chemistry / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000737:chemistry / Q000235:genetics; D048690:Fruiting Bodies, Fungal; D005656:Fungal Proteins / Q000235:genetics; D008969:Molecular Sequence Data; D058885:Multilocus Sequence Typing; D016533:Mycological Typing Techniques; D010802:Phylogeny; D017422:Sequence Analysis, DNA; D013045:Species Specificity; D013172:Spores, Fungal; D013785:Thailand
chemical_list: D004271:DNA, Fungal; D021903:DNA, Ribosomal Spacer; D005656:Fungal Proteins
keywords: Boletes; mycorrhizal fungi; taxonomy