Xenasma

{{Short description|Genus of fungi}} {{Use dmy dates|date=September 2025}} {{Automatic taxobox | image = Xenasma pulverulentum 212363.jpg | image_caption = ''Xenasma pulverulentum'' | taxon = Xenasma | authority = Donk (1957) | type_species = ''Xenasma rimicola'' | type_species_authority = (P.Karst.) Donk (1957) | synonyms_ref = <ref name="urlMycoBank: Xenasma"/> | synonyms = *''Clitopilina'' {{au|G.Arnaud (1951)}}<ref name="Arnoud 1951"/> | subdivision_ranks = }}

'''''Xenasma''''' is a genus of corticioid fungi in the order Polyporales. It was circumscribed by mycologist Marinus Anton Donk in 1957.<ref name="Donk 1957"/>

==Species== *''Xenasma aculeatum'' {{au|C.E.Gómez (1972)}} – Argentina<ref name="Gómez 1972"/> *''Xenasma amylosporum'' {{au|Parmasto (1968)}}<ref name="Parmasto 1968"/> *''Xenasma longicystidiatum'' {{au|Boidin & Gilles (2000)}} – Réunion Island<ref name="Boidin 2000"/> *''Xenasma parvisporum'' {{au|Pouzar (1982)}}<ref name="Pouzar 1982"/> *''Xenasma praeteritum'' {{au|(H.S.Jacks.) Donk (1957)}} – Cameroon; Jamaica; Puerto Rico *''Xenasma pruinosum'' {{au|(Pat.) Donk (1957)}} – Great Britain *''Xenasma pulverulentum'' {{au|(Litsch.) Donk (1957)}} – Dominican Republic; France; Great Britain; Jamaica; Netherlands *''Xenasma rimicola'' {{au|(P.Karst.) Donk (1957)}} – Portugal; Taiwan *''Xenasma subclematidis'' {{au|S.S.Rattan (1977)}} – Asia<ref name="Rattan 1977"/> *''Xenasma tulasnelloideum'' {{au|(Höhn. & Litsch.) Donk (1957)}} – Cameroon; Dominican Republic; Great Britain; Ontario; Portugal *''Xenasma vassilievae'' {{au|Parmasto (1965)}} – Europe<ref name="Parmasto 1965"/>

==References== {{Reflist|refs=

<ref name="Arnoud 1951">{{cite journal |author=Arnaud G. |title=Les boucles mycéliennes des eumycètes et la philogenie des urédinées |journal=Bulletin de la Société Mycologique de France |year=1951 |volume=67 |pages=173–198 |language=fr}}</ref>

<ref name="Boidin 2000">{{cite journal |author1=Boidin, J. |author2=Gilles, G. |year=2000 |title=Basidiomycètes Aphyllophorales de l'ile de La Reunion. XXI – Suite |journal=Mycotaxon |volume=75 |pages=357–387 |language=fr |url=http://www.cybertruffle.org.uk/cyberliber/59575/0075/0357.htm}}</ref>

<ref name="Donk 1957">{{cite journal |author=Donk, M.A. |year=1957 |title=Notes on resupinate Hymenomycetes IV |journal=Fungus |volume=27 |pages=1–29}}</ref>

<ref name="Gómez 1972">{{cite journal |author=Gómez, C.E. |year=1972 |title=''Xenasma'' y géneros afines de los alrededores de Buenos Aires (Aphyllophorales) |journal=Boletín de la Sociedad Argentina de Botánica |volume=14 |issue=4 |pages=269–281 |language=es}}</ref>

<ref name="Parmasto 1965">{{cite journal |author=Parmasto, E. |year=1965 |title=Corticiaceae U.R.S.S. I. Descriptiones taxorum novarum. Combinationes novae |journal=Eesti NSV Teaduste Akadeemia Toimetised |volume=14 |issue=2 |pages=220–233|doi=10.3176/biol.1965.2.06 |doi-access=free }}</ref>

<ref name="Parmasto 1968">{{cite book |author=Parmasto, E. |year=1968 |title=Conspectus Systematis Corticiacearum |publisher=Tartu |page=227}}</ref>

<ref name="Pouzar 1982">{{cite journal |author=Pouzar, Z. |year=1982 |title=Taxonomic studies in resupinate fungi I |journal=Ceská Mykologie |volume=36 |issue=3 |pages=141–145}}</ref>

<ref name="Rattan 1977">{{cite book |author=Rattan, S.S. |year=1977 |title=The resupinate Aphyllophorales of the North Western Himalayas |series=Bibliotheca Mycologica |volume=60 |page=233}}</ref>

<ref name="urlMycoBank: Xenasma">{{cite web |title=''Xenasma'' Donk 1957 |url=http://www.mycobank.org/BioloMICS.aspx?Link=T&TableKey=14682616000000067&Rec=57631&Fields=All |publisher=MycoBank. International Mycological Association |access-date=2012-04-12}}</ref>

}}

Category:Polyporales Category:Polyporales genera Category:Taxa named by Marinus Anton Donk Category:Taxa described in 1957