{{Short description|Genus of fungi}} {{Automatic taxobox | image = Hypoxylon_sp.jpg | taxon = Hypoxylon | authority = Bull. | type_species = ''Hypoxylon coccineum'' | type_species_authority = Bull. | subdivision = Species include: * ''Hypoxylon fragiforme'' * ''Hypoxylon tinctor'' * ''Hypoxylon chrysalidosporum''<ref>{{Cite journal |last1=Ma |first1=Haixia |last2=Song |first2=Zikun |last3=Pan |first3=Xiaoyan |last4=Li |first4=Yu |last5=Yang |first5=Zhanen |last6=Qu |first6=Zhi |date=January 2022 |title=Multi-Gene Phylogeny and Taxonomy of Hypoxylon (Hypoxylaceae, Ascomycota) from China |journal=Diversity |language=en |volume=14 |issue=1 |pages=37 |doi=10.3390/d14010037 |doi-access=free }}</ref> }}
'''''Hypoxylon''''' is a genus of ascomycetes commonly found on dead wood, and usually one of the earliest species to colonise dead wood. A common European species is ''Hypoxylon fragiforme'' which is particularly common on dead trunks of beech.
Based on morphological studies and gene sequence analyses, 27 species formerly assigned to ''Hypoxylon'' sect. ''Annulata'' were reassigned to a new genus called ''Annulohypoxylon'' in 2005.<ref name="mycologia">{{cite journal|last1=Hsieh|first1=Huei-Mei|last2=Ju|first2=Yu-Ming|last3=Rogers|first3=Jack D.|editor-last=Natvig|editor-first=Don|date=July–August 2005|title=Molecular phylogeny of Hypoxylon and closely related genera|journal=Mycologia|volume=97|issue=4|pages=844–865|pmid=16457354|doi=10.3852/mycologia.97.4.844}}</ref>
Research in Iran has shown the potential of some species of ''Hypoxylon'' in producing chemicals that are antagonistic against the disease ash dieback.<ref>{{Cite journal |last1=Pourmoghaddam |first1=Mohammad Javad |last2=Lambert |first2=Christopher |last3=Surup |first3=Frank |last4=Khodaparast |first4=Seyed Akbar |last5=Krisai-Greilhuber |first5=Irmgard |last6=Voglmayr |first6=Hermann |last7=Stadler |first7=Marc |date=2020 |title=Discovery of a new species of the Hypoxylon rubiginosum complex from Iran and antagonistic activities of Hypoxylon spp. against the Ash Dieback pathogen, Hymenoscyphus fraxineus, in dual culture |journal=MycoKeys |volume=66 |pages=105–133 |doi=10.3897/mycokeys.66.50946 |pmc=7195382 |pmid=32377154 |doi-access=free }}</ref>
== Use in the cultivation of ''Tremella fuciformis'' == Some species in the genus ''Hypoxylon'' may be used in the cultivation of ''Tremella fuciformis'', one of the foremost medicinal and culinary fungi of China and Taiwan.<ref name="stamets">{{cite book|last=Stamets|first=Paul|author-link=Paul Stamets|title=Growing gourmet and medicinal mushrooms = [Shokuyo oyobi yakuyo kinoko no sabai]|edition=3rd|year=2000|publisher=Ten Speed Press|location=Berkeley, California, USA|isbn=978-1-58008-175-7|pages=402–405|chapter=Chapter 21: Growth Parameters for Gourmet and Medicinal Mushroom Species}}</ref>
''Tremella fuciformis'' is a parasitic yeast that does not form an edible fruitbody without parasitizing another fungus.<ref name="stamets" /> Its preferred host, formerly known as ''Hypoxylon archeri'',<ref name="stamets" /> was moved to the closely related genus ''Annulohypoxylon'' and is now known as ''Annulohypoxylon archeri''.<ref name="mycologia" /> Cultivators usually pair cultures of ''Tremella fuciformis'' with this species, but mushroom cultivation books written before the new genus was created suggest other ''Hypoxylon'' species may be used.<ref name="stamets" />
== Gallery == <gallery> File:2008-10-18_Hypoxylon_sp._Bull_26073.jpg|''Hypoxylon sp.'' File:Hypoxylon_Fragiforme.jpg|''Hypoxylon fragiforme'' File:Přírodní_park_Baba314.jpg|''Hypoxylon fragiforme'' File:Hypoxylon fragiforme & Dialonectria episphaeria 81209.jpg|''Nectria episphaeria'' (red beads) growing on ''Hypoxylon fragiforme'' File:Hypoxylon fragiforme & Dialonectria episphaeria 81240-2.jpg|''Nectria episphaeria'' growing on ''Hypoxylon fragiforme'' </gallery>
== See also == * ''Tremella fuciformis'' {{Portal|Fungi}}
== References == {{Reflist}}
== External links == {{Commons category|Hypoxylon}} {{Commons category|Xylariaceae}} * [http://www.indexfungorum.org/Names/genusrecord.asp?RecordID=2456 Index Fungorum] * [http://mycology.sinica.edu.tw/Xylariaceae/GenusHypoxylon.asp Page with extensive information on the Hypoxylon genus] * [http://pyrenomycetes.free.fr/hypoxylon/index.htm Pyrenomycetes from southwestern France]
{{Taxonbar|from=Q1568603}} {{Authority control}}
Category:Xylariales Category:Taxa named by Jean Baptiste François Pierre Bulliard Category:Sordariomycetes genera
{{Xylariales-stub}}