Hydnellum joeides

Hydnellum joeides (the epithet is sometimes spelled ionides or jonides)[3] is a species of tooth fungus in the family Bankeraceae.

Hydnellum joeides
Scientific classification
Kingdom:
Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Thelephorales
Family:
Bankeraceae
Genus:
Hydnellum
Species:
H. joeides
Binomial name
Hydnellum joeides
(Pass.) E.Larss., K.H.Larss. & Kõljalg[1]
Synonyms[2]
  • Hydnum joeides Pass. (1872)
  • Sarcodon joeides (Pass.) Bataille (1924)

Taxonomy

It was first described by Italian botanist Giovanni Passerini in 1872 as Hydnum joeides.[4] Frédéric Bataille transferred it to the genus Sarcodon in 1924.[5]

Description

The fungus makes fruit bodies with flattened to concave caps measuring 2.5–10 cm (1.0–3.9 in) in diameter. They initially have a velvety surface texture that later breaks up into reddish-brown scales. The crowded spines on the cap underside are up to 3 mm long, and are decurrent on the stipe. Initially pale pink, they become brownish in age. Spores are tuberculate (covered in warts), and measure 6.3–7.2 by 4–4.7 µm.[6]

It is reportedly inedible.[7]

Habitat and distribution

The fungus is found in western and central Europe, where it is an ectomycorrhizal symbiont of European beech (Fagus sylvatica), English oak (Quercus robur), and probably sessile oak (Quercus petraea). It is on the red lists of several countries: Flandres, France and Norway (critically endangered); The Netherlands, Germany, Lower Saxony and Switzerland (endangered); and Sweden (vulnerable). Because of the continued decline in sightings in Europe, it has been proposed for inclusion on the IUCN Red List of Threatened Species.[8]

The species has also been reported from the United States,[9] and New Zealand, although mycologist Eef Arnolds regards these records as doubtful because of discrepancies in the reported sizes of the spores.[8]

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References
  1. Larsson, Svantesson, Miscevic, Kõljalg, Larsson (2019). "Reassessment of the generic limits for Hydnellum and Sarcodon (Thelephorales, Basidiomycota)". MycoKeys. 54: 31–47.CS1 maint: multiple names: authors list (link)
  2. "Sarcodon joeides (Pass.) Bataille". Species Fungorum. CAB International. Retrieved 2016-01-21.
  3. "Hydnum joeides Pass". MycoBank. International Mycological Association. Retrieved 2016-01-21.
  4. Passerini G. (1872). "Funghi Parmensi". Nuovo Giornale Botanico Italiano (in Latin). 4: 157.
  5. Bataille F. (1923). "Flore analytique-descriptive des Hydnes terrestres d'Europe". Bulletin de la Société Mycologique de France (in French). 39: 201–216.
  6. Maas Geesteranus RA. (1971). "Hydnaceous fungi of the eastern old world". Verhandelingen Koninklijke Nederlandse Akademie van Wetenschappen Afdeling Natuurkunde. 2. 60 (3): 162–163.
  7. Phillips, Roger (2010). Mushrooms and Other Fungi of North America. Buffalo, NY: Firefly Books. p. 326. ISBN 978-1-55407-651-2.
  8. Arnolds E. "Sarcodon joeides (Pass.) Bataille". The Global Fungal Red List Initiative. Retrieved 2016-01-21.
  9. Baird RE; Wallace LE; Baker G; Scruggs M. (2013). "Stipitate hydnoid fungi of the temperate southeastern United States". Fungal Diversity. 62 (1): 41–114. doi:10.1007/s13225-013-0261-6.
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