''Coprinellus'' is a
genus of
mushroom-forming
fungi in the
family Psathyrellaceae. The genus was
circumscribed
In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius.
Not every po ...
by the Finnish mycologist
Petter Adolf Karsten in 1879.
Most ''Coprinellus'' species were transferred from the once large genus ''
Coprinus''.
Molecular
A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion. In quantum physics, organic chemistry, and bioche ...
studies published in 2001 redistributed ''Coprinus'' species to ''
Psathyrella'', or the segregate genera ''
Coprinopsis'' and ''Coprinellus''.
In 2020
Phylogenetic analysis conducted by the German mycologists
Dieter Wächter
Dieter or dieter may refer to:
* A person committed to dieting
People
Dieter is a German given name (), a short form of Dietrich, from ''theod+ric'' "people ruler", see Theodoric.
Given name
*Dieter Althaus (born 1958), German politician
...
&
Andreas Melzer
Andreas ( el, Ἀνδρέας) is a name usually given to males in Austria, Greece, Cyprus, Denmark, Armenia, Estonia, Ethiopia, Eritrea, Finland, Flanders, Germany, Norway, Sweden, Switzerland, Romania, the Netherlands, and Indonesia. The ...
reclassified many ''Coprinellus'' species as belonging to the new genus ''
Tulosesus''.
Species

,
Index Fungorum accepted 62 species of ''Coprinellus''. In recent years many species were added to the genus having mostly been moved from ''
Coprinus'' whilst numerous species were removed and placed in the genus ''
Tulosesus'' in 2020. One species was moved to the monotypic genus ''
Punjabia.'' The total number of accepted species has not changed greatly from the 66 in 2019 however many species have been moved. Due to the significant changes to this genus recently many old synonyms are likely to still be in use.
Many of these species appear similar and require microscopic analysis to differentiate and identify.
Former Species
These species were reclassified as ''
Tulosesus'' in 2020.
See also
* ''
Tulosesus''
* ''
Punjabia''
References
{{Taxonbar, from=Q1073442
Agaricales genera
Taxa named by Petter Adolf Karsten
Taxa described in 1879