Hydnum repandum

*Hydnum repandum*
Mycological characteristics
Hydnum repandum Mycological characteristics
	Teeth on hymenium
	Cap is depressed
	Hymenium is decurrent
	Stipe is bare
	Spore print is white to cream
	Ecology is mycorrhizal
	Edibility is choice

Hydnum repandum
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Agaricomycetes
Order:	Cantharellales
Family:	Hydnaceae
Genus:	Hydnum
Species:	H. repandum
Binomial name
	Hydnum repandum; L. (1753)
Synonyms
	Hydnum flavidum Schaeff. (1774); Hypothele repanda (L.) Paulet (1812); Dentinum repandum (L.) Gray (1821); Tyrodon repandus (L.) P.Karst. (1881); Sarcodon repandus (L.) Quél. (1886);

Hydnum repandum, commonly known as the sweet tooth, pig's trotter,^[7] wood hedgehog or hedgehog mushroom, is a basidiomycete fungus of the family Hydnaceae. First described by Carl Linnaeus in 1753, it is the type species of the genus Hydnum. The fungus produces fruit bodies (mushrooms) that are characterized by their spore-bearing structures—in the form of spines rather than gills—which hang down from the underside of the cap. The cap is dry, colored yellow to light orange to brown, and often develops an irregular shape, especially when it has grown closely crowded with adjacent fruit bodies. The mushroom tissue is white with a pleasant odor and a spicy or bitter taste. All parts of the mushroom stain orange with age or when bruised.

A mycorrhizal fungus, Hydnum repandum is broadly distributed in Europe^[8] where it fruits singly or in close groups in coniferous or deciduous woodland.^[9]^[10] This is a choice edible species, although mature specimens can develop a bitter taste. It has no poisonous lookalikes.

^ Cite error: The named reference Linnaeus 1753 was invoked but never defined (see the help page).
^ Cite error: The named reference Schaeffer 1774 was invoked but never defined (see the help page).
^ Cite error: The named reference Gray 1821 was invoked but never defined (see the help page).
^ Cite error: The named reference Karsten 1881 was invoked but never defined (see the help page).
^ Cite error: The named reference Quélet 1886 was invoked but never defined (see the help page).
^ Cite error: The named reference urlMycoBank: Hydnum repandum was invoked but never defined (see the help page).
^ Arora, David (1986). Mushrooms demystified: a comprehensive guide to the fleshy fungi (Second ed.). Berkeley: Ten Speed Press. ISBN 978-0-89815-169-5.
^ Swenie, Rachel A.; Baroni, Timothy J.; Matheny, P. Brandon (2018-11-30). "Six new species and reports of Hydnum (Cantharellales) from eastern North America". MycoKeys (42). Pensoft Publishers: 35–72. doi:10.3897/mycokeys.42.27369. ISSN 1314-4049. PMC 6286385. PMID 30564052.
^ Feng, Bang; Wang, Xiang-Hua; Ratkowsky, David; Gates, Genevieve; Lee, Su See; Grebenc, Tine; Yang, Zhu L. (6 May 2016). "Multilocus phylogenetic analyses reveal unexpected abundant diversity and significant disjunct distribution pattern of the Hedgehog Mushrooms ( Hydnum L.) - Scientific Reports". Scientific Reports. 6 (1): 25586. Bibcode:2016NatSR...625586F. doi:10.1038/srep25586. PMC 4858670. PMID 27151256.
^ "Hydnum repandum, Wood Hedgehog mushroom". Wildflowers, wild orchids, fungi, wildlife; nature books, reserves. Retrieved 2019-11-18.

[Linnaeus_1753-1] Cite error: The named reference Linnaeus 1753 was invoked but never defined (see the help page).

[Schaeffer_1774-2] Cite error: The named reference Schaeffer 1774 was invoked but never defined (see the help page).

[Gray_1821-3] Cite error: The named reference Gray 1821 was invoked but never defined (see the help page).

[Karsten_1881-4] Cite error: The named reference Karsten 1881 was invoked but never defined (see the help page).

[Quélet_1886-5] Cite error: The named reference Quélet 1886 was invoked but never defined (see the help page).

[urlMycoBank:_Hydnum_repandum-6] Cite error: The named reference urlMycoBank: Hydnum repandum was invoked but never defined (see the help page).

[7] Arora, David (1986). Mushrooms demystified: a comprehensive guide to the fleshy fungi (Second ed.). Berkeley: Ten Speed Press. ISBN 978-0-89815-169-5.

[Swenie_Baroni_Matheny_pp._35–72-8] Swenie, Rachel A.; Baroni, Timothy J.; Matheny, P. Brandon (2018-11-30). "Six new species and reports of Hydnum (Cantharellales) from eastern North America". MycoKeys (42). Pensoft Publishers: 35–72. doi:10.3897/mycokeys.42.27369. ISSN 1314-4049. PMC 6286385. PMID 30564052.

[Nature-9] Feng, Bang; Wang, Xiang-Hua; Ratkowsky, David; Gates, Genevieve; Lee, Su See; Grebenc, Tine; Yang, Zhu L. (6 May 2016). "Multilocus phylogenetic analyses reveal unexpected abundant diversity and significant disjunct distribution pattern of the Hedgehog Mushrooms ( Hydnum L.) - Scientific Reports". Scientific Reports. 6 (1): 25586. Bibcode:2016NatSR...625586F. doi:10.1038/srep25586. PMC 4858670. PMID 27151256.

[Wildflowers,_wild_orchids,_fungi,_wildlife;_nature_books,_reserves-10] "Hydnum repandum, Wood Hedgehog mushroom". Wildflowers, wild orchids, fungi, wildlife; nature books, reserves. Retrieved 2019-11-18.

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Hydnum repandum Mycological characteristics
	Teeth on hymenium
	Cap is depressed
	Hymenium is decurrent
	Stipe is bare
	Spore print is white to cream
	Ecology is mycorrhizal
	Edibility is choice