Hymenochaetales

order of fungi

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July 17, 2026

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The Hymenochaetales are an order of fungi within the phylum Basidiomycota. This group includes fungi that are mycorrhizal or saprotrophic, meaning they live in association with plant roots or decompose organic matter. Many species in this order cause white rot, a type of wood decay. The fruiting bodies of these fungi can be inconspicuous, and many have an imperforate parenthesome, a structure within their cells. The genus Hymenochaete is part of this order and is characterized by a corky or leathery fruiting body with a downy hymenium due to projecting cystidia.12

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fungus
Annotated classification
Order Hymenochaetales (incertae sedis; not placed in any subclass) Mycorrhizal or saprotrophic; many cause white rot; fruiting body may be inconspicuous; many with imperforate parenthesome; example genera include Hymenochaete, Phellinus, and Trichaptum. Order Polyporales (incertae sedis; not placed in any subclass)
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Order Hymenochaetales (incertae sedis; not placed in any subclass) Mycorrhizal or saprotrophic; many cause white rot; fruiting body may be inconspicuous; many with imperforate parenthesome; example genera include Hymenochaete, Phellinus, and Trichaptum. Order Polyporales (incertae sedis; not placed in any subclass)
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