Gloiodon is a genus of mushrooms in the family Bondarzewiaceae. It was first described by Finnish mycologist Petter Karsten in 1879.
All species in Gloiodon are wood-inhabiting fungi growing on trunks of dead trees causing white rot.
Description Basidiocarps are pileate or resupinate with a hymenium of conical spines and usually a hairy upper side. Basidiospores are hyaline, rounded, with fine ornamentation and a strong amyloid reaction. Gloeocystidia are present.
Distribution Gloiodon strigosus is widely distributed in the boreal zones of Eurasia and North America. Gloiodon occidentales has only been reported in North America . Gloiodon nigrescens is only known from tropical regions.
Taxonomy Gloiodon stratosus is known from fungarium collections of preserved specimens . It is currently not considered to belong in Gloiodon, but the generic placement of this taxon is not resolved.
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