Plant Systematics and Evolution

, Volume 211, Issue 3–4, pp 217–229 | Cite as

Mating systems inOmphalotus (Paxillaceae, Agaricales)

  • Ronald H. Petersen
  • Karen W. Hughes


Pairings of monokaryon cultures representingOmphalotus illudens (eastern North America),O. nidiformis (southeastern Australia),O. olearius (southern Europe),O. olivascens (North American Pacific coast), andO. subilludens (southern North America) showed widely variable compatibility patterns.Omphalotus olearius ×O. subilludens ×O. olivascens showed high compatibility, whileO. illudens was significantly less compatible with all other taxa. Isolates ofOmphalotus nidiformis represented an almost genetically isolated biological species. The role of partial compatibility in nomenclatural ranking is discussed.

Key words

Fungi Basidiomycetes Paxillaceae Omphalotus Mating systems speciation 


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Copyright information

© Springer-Verlag 1998

Authors and Affiliations

  • Ronald H. Petersen
    • 1
  • Karen W. Hughes
    • 1
  1. 1.Botany DepartmentUniversity of TennesseeKnoxvilleUSA

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