Tremellomycetes

class of fungi

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July 19, 2026

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The Tremellomycetes are a class of fungi within the phylum Basidiomycota. This class includes the order Tremellales, which are characterized by basidiocarps that can range from gelatinous to waxy or horny when dry. While many are saprophytes, feeding on dead organic matter, some species are parasitic, affecting mosses, other fungi, insects, or vascular plants. The family Tremellaceae, within the order Tremellales, is distinguished by basidia that are longitudinally or obliquely septate or divided. Fungi in the class Tremellomycetes can be parasitic or saprotrophic, and while they may have gelatinous fruiting bodies, these are not always present.123

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fungus
Annotated classification
Class Tremellomycetes Parasitic or saprotrophic; if present, parenthesome separated into cup-shaped sections; gelatinous fruiting bodies may be absent; includes 3 orders. Order Cystofilobasidiales Parasitic and pathogenic on plants (causing black canker of parsnips), may be saprotrophic; dolipores present; may lack parenthesomes;
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Class Tremellomycetes Parasitic or saprotrophic; if present, parenthesome separated into cup-shaped sections; gelatinous fruiting bodies may be absent; includes 3 orders. Order Cystofilobasidiales Parasitic and pathogenic on plants (causing black canker of parsnips), may be saprotrophic; dolipores present; may lack parenthesomes;
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