Rooting hebelomas: The Japanese 'Hebeloma radicosum' is a distinct species, Hebeloma sagarae sp. nov. (Hymenogastraceae, Agaricales)

Ursula Eberhardt, Henry J. Beker, Nicole Schütz, Megu Mikami, Taiga Kasuya

Research output: Contribution to journalArticlepeer-review

Abstract

Hebeloma radicosum, known for its long 'root' and membranous ring, has regularly been recorded in Japan and been the subject of many studies revolving around ectomycorrhizal fungi exposed to high levels of nitrogen compounds and tripartite associations between fungi, host trees and mammals, including moles, wood mice and shrews. However, the species recorded in Japan is in fact not H. radicosum but a closely related species, also in Hebeloma section Myxocybe, described here as Hebeloma sagarae. This mushroom is macroscopically very similar to Hebeloma radicosum, also with a long 'root' and membranous ring, but distinct molecularly and in its distribution. We also examine other 'rooting' Hebeloma species from Japan: H. luchuense and H. radicosoides; both are shown to be members of H. sect. Scabrispora. A fourth 'rooting' Hebeloma from Japan is shown to be the same as or a close relative of Hebeloma danicum originally described from Europe.

Original languageEnglish
Pages (from-to)125-144
Number of pages20
JournalPhytotaxa
Volume456
Issue number2
DOIs
Publication statusPublished - 2020 Aug 20

Keywords

  • Ammonia fungi
  • Basidiomycota
  • Ectomycorrhizal fungi
  • Mammal latrines

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Plant Science

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