{{Short description|Genus of fungi}} {{Automatic_taxobox | image = Micropsalliota 552515.jpg | image_caption = Unidentified ''Micropsalliota'' from South Africa | taxon = Micropsalliota | authority = Höhn. (1914) | type_species = ''Micropsalliota pseudovolvulata'' | type_species_authority = Höhn. (1914) | subdivision_ranks = Species | subdivision = }}
'''''Micropsalliota''''' is a genus of small agaric fungi in the family Agaricaceae. The genus contains about 60 species, most of which are found in tropical areas.
==Taxonomy== The genus was circumscribed by Austrian mycologist Franz Xaver Rudolf von Höhnel in 1914 with ''Micropsalliota pseudovolvulata'' as the type species. This species was collected in 1907 by Höhnel in the Bogor Botanical Gardens in Bogor, Indonesia.<ref name="Höhnel 1914"/> The generic name refers to the similarity of the slender fruitbodies to those in ''Psalliota'' (a genus that has since been synonymized with ''Agaricus'').<ref name="Zhao 2010"/> Emendations were made to the genus in 1969 by Pegler and Rayner,<ref name="Pegler 1969"/> and then in 1976 by Heinemann.<ref name="Heinemann 1976"/> Molecular phylogenetics has shown that the genus represents a monophyletic lineage in the family Agaricaceae that is sister to the genus ''Hymenagaricus''.<ref name="Zhao 2010"/>
==Description== [[File:Micropsalliota wuyishanensis 1693257.jpg|thumb|Micropsalliota wuyishanensis from Taiwan.]] ''Micropsalliota'' fruitbodies have a ring on the stipe, free gill attachment, and brown spores. ''Micropsalliota'' is distinguished from similar genera with dark spore prints by its small- to medium-sized fruit bodies, ellipsoid to cymbiform (boat-shaped) basidiospores with an apical thickening in the endosporium, cheilocystidia that are often capitate (ending in a distinct compact head) or nearly so, and pileipellis hyphae encrusted with a pigment that turns olive to green after application of NH<sub>4</sub>OH.<ref name="Zhao 2010"/>
==Ecology and distribution== About 40 ''Micropsalliota'' species have been described by Belgian mycologist Paul Heinemann and colleagues from the tropics of Africa, America, India, Indonesia, and Malaysia. Eleven new species from Thailand were added in 2010.<ref name="Zhao 2010"/> ''Micropsalliota pseudoglobocystis'' is the first species of the genus reported from China.<ref name="Wei 2015"/> A new species, ''Micropsalliota albofelina'', was described in 2021; it is the first record of the genus in Vietnam.<ref name="Crous 2021"/>
==Species== {{As of|2022|July}}, Index Fungorum accepts 70 species of ''Micropsalliota'': {{Div col|colwidth=30em}} *''M. alba'' Heinem. & Little Flower 1983 – Kerala *''M. albella'' M.Q. He & R.L. Zhao 2020 – Thailand<ref name="Zhao 2010"/> *''M. albofelina'' D.D. Ivanova & O.V. Morozova 2021 – Vietnam<ref name="Crous 2021"/> *''M. albonuda'' (Beeli) Heinem. 1988 – Kerala *''M. albosericea'' Heinem. & Leelav. 1991 *''M. allantoidea'' R.L.Zhao, Desjardin, Soytong & K.D.Hyde 2010 – Thailand<ref name="Zhao 2010"/> *''M. arginea'' (Berk. & Broome) Pegler & R.W.Rayner 1969 *''M. arginophaea'' Heinem. 1980 – Peninsular Malaysia *''M. atropurpurea'' Heinem. 1988 – Zaire *''M. avellanea'' Heinem. & Little Flower 1983 – Kerala *''M. bambusicola'' (Heinem.) Heinem. 1988 *''M. bifida'' R.L.Zhao, Desjardin, Soytong & K.D.Hyde 2010 – Thailand<ref name="Zhao 2010"/> *''M. bogoriensis'' Heinem. 1983 – Java *''M. brunneola'' Heinem. 1980 – Peninsular Malaysia *''M. brunneosperma'' (Singer) Pegler 1969 *''M. brunneosquamata'' Linda J. Chen, R.L. Zhao & K.D. Hyde 2016 – Thailand *''M. campestroides'' (Heinem. & Gooss.-Font.) Heinem. 1988 *''M. cardinalis'' Heinem. 1989 – Argentina *''M. cephalocystis'' (Heinem.) Heinem. 1977 *''M. cinnamomeopallida'' Singer 1982 – Costa Rica *''M. cornuta'' Har. Takah. & Taneyama 2016 – Japan *''M. cortinata'' (Heinem.) Heinem. 1988 *''M. cymbispora'' Heinem. & Little Flower 1983 – Kerala *''M. cystidiosa'' Natarajan & Manjula 1982 – Tamil Nadu *''M. delicatula'' R.L. Zhao, J.X. Li & M.Q. He 2021 – China *''M. dentatomarginata'' R.L. Zhao, J.X. Li & M.Q. He 2021 – China *''M. digitatocystis'' R.L. Zhao, J.X. Li & M.Q. He 2021 – China *''M. elata'' Heinem. 1988 – Senegal *''M. endophaea'' Heinem. 1988 – Senegal *''M. erythrospila'' (Berk. & Broome) Pegler 1986 *''M. furfuracea'' R.L. Zhao, Desjardin, Soytong & K.D. Hyde 2010 – Thailand<ref name="Zhao 2010"/> *''M. geesterani'' (Bas & Heinem.) R.L. Zhao & L.A. Parra 2015 – Netherlands *''M. globocystis'' Heinem. 1980 – Singapore *''M. gracilis'' Heinem. 1980 – Singapore *''M. heinemaniana'' Guzm.-Dáv. 1992 – Mexico *''M. heterocystis'' Heinem. 1988 – Zaire *''M. ianthina'' Heinem. 1980 – Singapore *''M. laeta'' Heinem. 1980 – Singapore *''M. lateritia'' Heinem. 1980 – Singapore *''M. luteotacta'' Heinem. 1988 – Zaire *''M. lutescens'' Heinem. 1980 – Singapore *''M. malabarensis'' Heinem. & Little Flower 1983 – Kerala *''M. megarubescens'' R.L.Zhao, Desjardin, Soytong & K.D.Hyde 2010 – Thailand<ref name="Zhao 2010"/> *''M. megaspora'' R.L.Zhao, Desjardin, Soytong & K.D.Hyde 2010 – Thailand<ref name="Zhao 2010"/> *''M. ochracea'' Heinem. 1980 – Singapore *''M. pholiotinoides'' Heinem. 1983 – Zaire *''M. pilicystis'' Heinem. 1980 – Singapore *''M. pleurocystidiata'' Heinem. & Little Flower 1983 – Kerala *''M. plumaria'' (Berk. & Broome) Höhn. 1914 *''M. pruinosa'' Heinem. 1989 – Rio de Janeiro *''M. pseudoarginea'' Heinem. 1982 – Papua New Guinea *''M. pseudoglobocystis'' Li Wei & R.L. Zhao 2015 – China<ref name="Wei 2015"/> *''M. pseudovolvulata'' Höhn. 1914 *''M. pudica'' Heinem. & Leelav. 1991 – Kerala *''M. pulverulenta'' Heinem. & Leelav. 1991 – Kerala *''M. purpurea'' Singer 1977 – Ecuador *''M. purpureobrunneola'' M.Q. He & R.L. Zhao 2020 – Thailand<ref name="Zhao 2010"/> *''M. pusillissima'' R.L.Zhao, Desjardin, Soytong & K.D.Hyde 2010 – Thailand<ref name="Zhao 2010"/> *''M. repanda'' Heinem. 1980 – Singapore *''M. roseipes'' Heinem. 1980 – Peninsular Malaysia *''M. roseovinaceus'' Pegler 1982 – Martinique *''M. rubrobrunnescens'' R.L.Zhao, Desjardin, Soytong & K.D.Hyde 2010 – Thailand<ref name="Zhao 2010"/> *''M. subalba'' Heinem. & Little Flower 1983 – Kerala *''M. subalpina'' Guzm.-Dáv. & Heinem. 1994 – Mexico *''M. subarginea'' Heinem. 1980 – Singapore *''M. suthepensis'' R.L.Zhao, Desjardin, Soytong & K.D. Hyde 2010 – Thailand<ref name="Zhao 2010"/> *''M. ventricocystidiata'' Al-Sadi & S. Hussain 2022 – Oman *''M. vinaceoumbrina'' (A.H.Sm.) Heinem. 1977 – Texas *''M. violaceosquamulosa'' (R.E.D.Baker & W.T.Dale) Heinem. 1980 – Trinidad-Tobago *''M. xanthorubescens'' Heinem. 1980 – Singapore *''M. wuyishanensis'' J.Q. Yan 2022 {{div col end}}
==See also== *List of Agaricales genera *List of Agaricaceae genera
==References== {{Reflist|refs=
<ref name="Heinemann 1976">{{cite journal |author=Heinemann P. |title=The genus ''Micropsalliota'' |journal=Kew Bulletin |year=1976 |volume=31 |issue=3 |pages=581–583|doi=10.2307/4119406 |jstor=4119406 }}</ref>
<ref name="Höhnel 1914">{{cite journal |author=von Höhnel F. |title=Fragmente zur Mykologie XVI (XVI. Mitteilung, Nr. 813 bis 875) |journal=Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften Math.-naturw. Klasse Abt. I |year=1914 |volume=123 |url=http://www.landesmuseum.at/pdf_frei_remote/SBAWW_123_0049-0155.pdf |language=German |pages=49–155 (see p. 79)}}</ref>
<ref name="Pegler 1969">{{cite journal |vauthors=Pegler DN, Rayner RW |title=A contribution to the Agaric flora of Kenya |journal=Kew Bulletin |year=1969 |volume=23 |issue=3 |pages=347–412|doi=10.2307/4117177 |jstor=4117177 |bibcode=1969KewBu..23..347P }}</ref>
<ref name="Wei 2015">{{cite journal |vauthors=Wei L, Yong-He L, Hyde KD, Zhao RL |title=''Micropsalliota pseudoglobocystis'', a new species from China |journal=Mycotaxon |year=2015 |volume=130 |issue=2 |pages=555–561 |doi=10.5248/130.555|doi-access=free }}</ref>
<ref name="Zhao 2010">{{cite journal |vauthors=Zhao R, Desjardin DE, Soytong K, Perry BA, Hyde KD |title=A monograph of ''Micropsalliota'' in Northern Thailand based on morphological and molecular data |journal=Fungal Diversity |year=2010 |volume=45 |pages=33–79|doi=10.1007/s13225-010-0050-4|s2cid=983535 }}</ref>
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Category:Agaricaceae Category:Agaricales genera Category:Taxa named by Franz Xaver Rudolf von Höhnel Category:Taxa described in 1914