The genus Hebeloma has a number of species highly specific to Cistus and others that occur with several host genera. This paper discusses the species of Hebeloma that appear to be ectomycorrhizal with Cistus, judging from their occurrence when Cistus is the only available host. The previously unknown species H. plesiocistum Spec. nov. is described. We also provide a key to the known Hebeloma associates of Cistus. Molecular analyses based on ITS sequence data further illustrate the distinctness of the newly described species and difficulties in the species delimitation with view to H. erumpens. Specific associations with Cistus may have evolved more than once within the genus Hebeloma. (C) 2008 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.
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Staatl Museum Nat Kunde Stuttgart, Rosenstein 1, D-70191 Stuttgart, GermanyStaatl Museum Nat Kunde Stuttgart, Rosenstein 1, D-70191 Stuttgart, Germany
Eberhardt, Ursula
Schutz, Nicole
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Staatl Museum Nat Kunde Stuttgart, Rosenstein 1, D-70191 Stuttgart, GermanyStaatl Museum Nat Kunde Stuttgart, Rosenstein 1, D-70191 Stuttgart, Germany
Schutz, Nicole
Bartlett, Peter
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Virginia Water, Gorse Hill Rd, Virginia Water GU25 4AP, Surrey, EnglandStaatl Museum Nat Kunde Stuttgart, Rosenstein 1, D-70191 Stuttgart, Germany
Bartlett, Peter
Hosaka, Kentaro
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Natl Museum Nat & Sci, Dept Bot, 4-1-1 Amakubo, Tsukuba, Ibaraki 3050005, JapanStaatl Museum Nat Kunde Stuttgart, Rosenstein 1, D-70191 Stuttgart, Germany
Hosaka, Kentaro
Kasuya, Taiga
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Keio Univ, Dept Biol, Kohoku Ku, 4-1-1 Hiyoshi, Yokohama, Kanagawa 2238521, JapanStaatl Museum Nat Kunde Stuttgart, Rosenstein 1, D-70191 Stuttgart, Germany
Kasuya, Taiga
Beker, Henry J.
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Rue Pere Deken 19, B-1040 Brussels, Belgium
Univ London, Royal Holloway Coll, Egham, Surrey, England
Plantentuin Meise, Nieuwelaan 38, B-1860 Meise, BelgiumStaatl Museum Nat Kunde Stuttgart, Rosenstein 1, D-70191 Stuttgart, Germany