{{Short description|Subgenus of fungi}} {{Automatic taxobox | image = 2008-10-16 Entoloma dichroum 1 20009 cropped.jpg | image_caption = ''Entoloma (Leptonia) dichroa'', Czech Republic | taxon = Entoloma subg. Leptonia | authority = (Fr.) Noordel. (1981) | type_species = ''Leptonia euchroa'' | type_species_authority = (Pers.) P.Kumm. (1871) | synonyms = ''Agaricus'' trib. ''Leptonia'' <small>Fr. (1821)</small><br> ''Leptonia'' <small>(Fr.) P.Kumm. (1871)</small> | subdivision_ranks = Species | subdivision = }} '''''Leptonia''''' is a subgenus of fungi in the genus ''Entoloma''. Called '''pinkgills''' in English, basidiocarps (fruit bodies) are agaricoid, mostly (but not always) mycenoid (like species of ''Mycena'') with slender stems.<ref name="Morozova2014"/> All have salmon-pink basidiospores which colour the gills at maturity and are angular (polyhedral) under a microscope. Recent DNA evidence has shown that at least 12 species belong in ''Leptonia'' in temperate Europe and Asia.<ref name="Morozova2014"/>
==Taxonomy== ''Leptonia'' was introduced in 1821 by the Swedish mycologist Elias Magnus Fries as a "tribe" of ''Agaricus'' comprising small, slender agarics with convex to flat caps and pink spores.<ref name="Fries 1821"/> In 1871 German mycologist Paul Kummer raised the tribe to genus level.<ref name=Kummer/>
Recent molecular research, based on cladistic analysis of DNA sequences, has shown that ''Leptonia'', as previously defined, was paraphyletic (an artificial grouping).<ref name=CoDavid2009/> By excluding species unrelated to the type, however, ''Leptonia'' has been redefined as a monophyletic (natural) grouping.<ref name="Morozova2014"/> In this new sense, ''Leptonia'' has so far been treated as a subgenus of ''Entoloma''.<ref name="Morozova2014"/>
The redefined ''Leptonia'' is substantially smaller than before and excludes ''Entoloma cyanulum'', ''Entoloma serrulatum'', and related species (now placed in subgenus ''Cyanula''), ''Entoloma cocles'' and related species (now placed in subgenus ''Griseorubida''), and ''Entoloma watsonii'' and related species (now placed in subgenus ''Rhamphocystotae'').<ref name="Morozova2014"/>
==References== {{Reflist|refs=
<ref name=CoDavid2009>{{cite journal |vauthors=Co-David D, Langeveld D, Noordeloos ME |author3-link=Machiel Noordeloos |title=Molecular phylogeny and spore evolution of Entolomataceae |journal=Persoonia |volume=23 |pages=147–76 |year=2009 |pmid=20198166 |pmc=2802732 |doi=10.3767/003158509X480944 |url=https://docserver.ingentaconnect.com/deliver/connect/nhn/00315850/v23n1/s11.pdf?expires=1685225126&id=0000&titleid=75002420&checksum=C7FFC87FF4A1FF609415D9C8CE625BB3&host=https://www.ingentaconnect.com }}</ref>
<ref name="Fries 1821">{{cite book |author=Fries EM. |title=Systema Mycologicum |year=1821 |volume=1 |pages=10, 207 |language=Latin |location=Lundin, Sweden |publisher=Ex Officina Berlingiana |url=https://www.biodiversitylibrary.org/page/4338023}}</ref>
<ref name=Kummer>{{Cite book |last=Kummer |first=Paul |url=https://www.biodiversitylibrary.org/item/106672#page/102/mode/1upp |title=Der Führer in die Pilzkunde : Anleitung zum methodischen, leichten und sichern Bestimmen der in Deutschland vorkommenden Pilze : mit Ausnahme der Schimmel- und allzu winzigen Schleim- und Kern-Pilzchen |date=1871 |publisher=Verlag von E. Luppe's Buchhandlung |location=Zerbst |pages=94–97}}</ref>
<ref name="Morozova2014">{{cite journal |vauthors=Morozova O, Noordeloos M, Vila J |year=2014 |title=''Entoloma'' subgenus ''Leptonia'' in boreal-temperate Eurasia: Towards a phylogenetic species concept |journal=Persoonia |volume=32 |pages=141–169 |doi=10.3767/003158514X681774 |pmid=25264388 |pmc=4150075 |url=https://docserver.ingentaconnect.com/deliver/connect/nhn/00315850/v32n1/s9.pdf?expires=1685664588&id=0000&titleid=75002420&checksum=1B3DB27F63D37FD58C420574EE096888&host=https://www.ingentaconnect.com}}</ref>
}}
{{Taxonbar|from=Q6528224}}
Category:Fungus subgenera Category:Entolomataceae