Byssonectria fusispora: The Ultimate Mushroom Guide
About The Byssonectria fusispora Mushroom
Byssonectria fusispora is a species of apothecial fungus belonging to the family Pyronemataceae. This is a European species appearing as bright yellow-orange discs up to 3 mm in diameter thickly clustered on soil and rotting plant material, often at fire sites.
The genus Byssonectria comprises a group of simple disc-like ascomycetes with small fruitbodies and clavate asci. In many of the species each ascus contains eight ascospores, but there are some related species whose asci produce more than 2000 spores. Mostly these little fungi grow on various kinds of dung or rotting vegetation, often on disturbed soil beside woodland paths.
Old scientific names found on the FRDBI Byssonectria terrestris, Humaria carbonigena, H. fusispora, H. roumeguerei var. carniosissima, Inermisia fusispora and Octospora carbonigena.
Byssonectria fusispora Identification
The fungus forms a mass of small (3-5 mm) bright yellow or slightly orange cone-shaped structures and will grow in association with a range of substrates including fire sites, old straw, deer dung, broadleaf woodland litter, and, most commonly so far in Scotland, in the litter of pine woods.
The majority of records in Scotland occur between March and the beginning of September; it is considered spring and early summer species in Continental Europe.
This is a litter rotting species that may well turn out to nitrophilic. The book Nordic Macromycetes (Vol. 1) suggests that this species may well be associated with deer urine and its occurrence in discreet patches on the forest floor in many ways suggests this. It certainly appears in a range of habitats including fire sites and, particularly in Scotland, pine litter.
Widespread but occasional across the British Isles. The total number of records for this species on the Fungal Records Database of Britain and Ireland is 110 with 28 of those from Scotland.
Byssonectria fusispora Taxonomy & Etymology
In 1846 this tiny ascomycete fungus was described by British mycologist Miles Berkeley, who gave it the scientific name Peziza fusispora. The currently accepted scientific name Byssonectria fusispora dates from a 1971 publication by American mycologists Clark Thomas Rogerson (1918 - 2001) and Richard Paul Korf (1925 - 2016).
Synonyms of Byssonectria fusispora include Peziza fusispora Berk., Humaria fusispora (Berk.) Sacc., Leucoloma fusisporum (Berk.) H. Rehm, Octospora fusispora (Berk.) Brumm., and Inermissia fusispora (Berk.) Rifai.
The specific epithet fusispora refers to the fusoid (spindle-shaped) spores of this ascomycete fungus.
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