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Sclerotial formation in Corticium olivascens and other hymenomycetes

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Abstract

Sclerotia ofCorticium olivascens are reported and described for the first time. Examples include sclerotia collected from a stump ofPinus virginiana in Greenbelt, Maryland, and those formed in several cultures originally developed from spores produced by basidiocarps. Among outstanding characteristics of basidiocarps ofC. olivascens are the greenish or olivaceous color of the hymenial surface, constant presence of clamp-connections, development of septate cystidia, and production of nonamyloid but dextrinoid basidiospores. Cultural characteristics are described, and the negative oxidase reaction is noted.C. olivascens is a highly distinctive fungus which requires further taxonomic attention.

Zusammenfassung

Sclerotia vonCorticium olivascens sind das erste Mal mitgeteilt und beschrieben. Beispiele betrifft Sclerotia, die vom Baumstumpf vonPinus virginiana in Greenbelt, Maryland gesammelt worden sind und diejenigen, die sich in mehreren Kulturen, ursprünglich von Sporen der Basidiocarpen entwickelt haben. Unter den besonderen Kennzeichen der Basidiocarpen vonC. olivascens sind die grünliche oder olive Farbe der Hymenialoberfläche, ständiges Vorkommen der Klammerverbindungen, Entwicklung septierter Cystidien und die Produktion von nicht-amyloiden, sondern dextrinoiden Basidiosporen. Kulturkennzeichen sind beschrieben und die negative Oxidasenreaktion ist erwähnt.C. olivascens ist ein hoch distinguierter Pilz, der eine weitere, taxonomische Aufmerksamkeit verlangt.

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Authors and Affiliations

  1. U.S. Department of Agriculture, Crops Research Division, Agricultural Research Service, 20705, Beltsville, Maryland

    Paul L. Lentz

  2. U.S. Department of Agriculture, Beltsville Forest Disease Laboratory (Retired), Forest Service, 20810, Laurel, Maryland

    Hazel H. McKay

Authors
  1. Paul L. Lentz
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  2. Hazel H. McKay
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Lentz, P.L., McKay, H.H. Sclerotial formation in Corticium olivascens and other hymenomycetes. Mycopathologia et Mycologia Applicata 40, 1–13 (1970). https://doi.org/10.1007/BF02128659

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