Mycological Progress

, Volume 9, Issue 2, pp 195–203

The neglected hypogeous fungus Hydnotrya bailii Soehner (1959) is a widespread sister taxon of Hydnotrya tulasnei (Berk.) Berk. & Broome (1846)

  • Benjamin Stielow
  • Ben Bubner
  • Gunnar Hensel
  • Babette Münzenberger
  • Peter Hoffmann
  • Hans-Peter Klenk
  • Markus Göker
Original Article

Abstract

The neglected false truffle species Hydnotrya bailii Soehner (Ascomycetes, Discinaceae) is re-described and separated from its sister taxon Hydnotrya tulasnei by morphological and phylogenetic analyses based on internal transcribed spacer rDNA sequences. The most distinct morphological and ecological characters are small globose, rather than kidney-like, ascomata as known from the sister taxon H. tulasnei, strictly monoseriate ascospores and montane habitats. Phylogenetic analyses resulted in two clearly separated clusters that revealed the ectomycorrhizal specificity of H. bailii to Picea abies and that H. tulasnei is preferably associated to Fagus sylvatica. We also show that H. bailii was already present in mycorrhizal samples but until now could not be correctly assigned. Our analyses also indicate cryptic diversity within H. cerebriformis and other, morphologically not yet characterized, Hydnotrya groups. An emended determination key for all Hydnotrya species known from Central Europe is provided.

Keywords

Cryptic species Ectomycorrhizal symbiosis Soil ecology False truffles Taxonomy 

Supplementary material

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Supplementary 1(NEX 73.3 kb)
11557_2009_625_MOESM2_ESM.nex.
Supplementary 2(NEX 138 kb)

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Copyright information

© German Mycological Society and Springer 2009

Authors and Affiliations

  • Benjamin Stielow
    • 1
  • Ben Bubner
    • 2
  • Gunnar Hensel
    • 3
  • Babette Münzenberger
    • 2
  • Peter Hoffmann
    • 1
  • Hans-Peter Klenk
    • 1
  • Markus Göker
    • 1
  1. 1.DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbHBraunschweigGermany
  2. 2.ZALF–Leibniz-Zentrum für Agrarlandschaftsforschung e.V.Institut für LandschaftsstoffdynamikMünchebergGermany
  3. 3.Fungarium Gunnar HenselMerseburgGermany

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