{{Short description|Genus of grasses}} {{Automatic taxobox |name = Jointtail grass |image = Mnesithea formosa seeds.jpg |image_caption = ''Mnesithea formosa'' |display_parents = 4 |taxon = Mnesithea |authority = Kunth |type_species = ''Mnesithea laevis'' |type_species_authority = (Retz.) Kunth |synonyms_ref = <ref name=ITIS/><ref name=VeldKoniSose86>{{Citation |last1=Veldkamp |first1=J.F. |last2=de Koning |first2=R. |last3=Sosef |first3=M.S.M. |date=1986 |title=Generic delimitation of ''Rottboellia'' and related genera (Gramineae) |journal=Blumea |volume=31 |pages=281–307 |url=https://repository.naturalis.nl/pub/524723/BLUM1986031002005.pdf |access-date=2024-11-29 |name-list-style=amp }}</ref> |synonyms = (For the broad circumscription) {{Genus list |Coelorachis|auct. non Brongn. |Hackelochloa|Kuntze |Apogonia|(Nutt.) E. Fourn. |Cycloteria|Stapf |Diperium|Desv. |Peltophorus|Desv. |Rytilix|Raf. ex Hitchc. |Thyridostachyum|Nees }} }}
'''''Mnesithea''''', or '''jointtail grass''', is a genus of Asian, Australian, and Pacific Island plants in the grass family.<ref>[https://www.biodiversitylibrary.org/page/682088#page/154/mode/1up Kunth, Karl Sigismund . 1829. Révision des Graminées 1: 153-154] in Latin</ref><ref>[http://www.tropicos.org/Name/40020853 Tropicos, ''Mnesithea'' Kunth ]</ref><ref>[http://www.kew.org/data/grasses-db/www/gen00391.htm Grassbase - The World Online Grass Flora]</ref><ref>[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=120873 Flora of China Vol. 22 Page 642 <big>毛俭草属</big> mao jian cao shu ''Mnesithea'' Kunth, Révis. Gramin. 1: 153. 1829. ]</ref><ref>[http://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:apni.taxon:419191#tab_classification Atlas of Living Australia, ''Mnesithea'' Kunth, Jointtail Grass]</ref> The number of species placed in the genus varied considerably {{As of|2024|November|lc=yes}} depending in large part on how the genus ''Coelorachis'' was treated. Sources that synonymized ''Coelorachis'' with ''Mnesithea'' accepted about 26 species. Those that synonymized ''Coelorachis'' with ''Rottboellia'' accepted about seven.
==Taxonomy== The genus ''Mnesithea'' was erected by Carl Sigismund Kunth in 1829.<ref name=POWO_18517-1/> The circumscription of the genus varied {{As of|2024|November|lc=yes}}. A 2015 classification of Poaceae treated ''Coelorachis'' as a synonym of ''Mnesithea''.<ref name=Sore15t1/> This treatment was supported by Welker et al. in 2020, based on a molecular phylogenetic study,<ref name=WelkMcKaEstePasq20/> and was used by the Germplasm Resources Information Network<ref name=GRIN_g14049/> and the Integrated Taxonomic Information System.<ref name=ITIS/> In this circumscription, the genus has about 26 species including those formerly placed in ''Coelorachis''.<ref name=Sore15t1/> Alternatively, Plants of the World Online, following Veldkamp et al. in 2013,<ref name=VeldHeiddeKoKraa13/> treated ''Coelorachis'' as a synonym of ''Rottboellia'',<ref name=POWO_17777-1/> with only seven species in the genus ''Mnesithea''.<ref name=POWO_18517-1/>
===Species=== Seven species were accepted in the narrow circumscription {{As of|2024|November|lc=yes}}:<ref name=POWO_18517-1/> * ''Mnesithea annua'' <small>(Lazarides) de Koning & Sosef</small> - Western Australia * ''Mnesithea formosa'' <small>(R.Br.) de Koning & Sosef</small> - Lesser Sunda Islands, New Guinea, Western Australia, Northern Territory, Queensland * ''Mnesithea laevis'' <small>(Retz.) Kunth</small> - Fujian, Guangdong, Guangxi, Hainan, Taiwan, Japan incl Nansei-shotō, India, Indonesia, Pakistan, Philippines, Sri Lanka, Thailand, Vietnam; Pacific Islands * ''Mnesithea mollicoma'' <small>(Hance) A.Camus</small> - Guangdong, Guangxi, Thailand, Vietnam, Palawan, Java, Malaysia, Philippines, Sulawesi * ''Mnesithea pilosa'' <small>B.K.Simon</small> - Queensland * ''Mnesithea thailandica'' <small>Traiperm & Boonkerd</small> - Thailand * ''Mnesithea veldkampii'' <small>Potdar, S.P.Gaikwad, Salunkhe & S.R.Yadav</small> - Maharashtra
Further species accepted when ''Coelorachis'' is synonymized with ''Mnesithea'' include the following, which other sources place in ''Rottboellia'':<ref name=POWO_Coelorachis>{{Cite web |title=Search for 'Coelorachis' |website=Plants of the World Online |publisher=Royal Botanic Gardens, Kew |url=https://powo.science.kew.org/results?q=Coelorachis |access-date=2024-03-17}}</ref><ref name=GRIN_g14049/><ref name=ITIS>{{ITIS|id=500938|taxon=''Mnesithea'' Kunth|access-date=2024-11-26}}</ref> * ''Mnesithea afraurita'' <small>(Stapf) de Koning & Sosef</small> (= ''Coelorachis afraurita'') * ''Mnesithea aurita'' <small>(Steud.) de Koning & Sosef</small> (= ''Coelorachis aurita'') * ''Mnesithea balansae'' <small>(Hack.) de Koning & Sosef</small> (= ''Coelorachis balansae'') * ''Mnesithea cancellata'' <small>(Ridl.) Ridl.</small> (= ''Coelorachis cancellata'') * ''Mnesithea capensis'' <small>(Stapf) de Koning & Sosef</small> (= ''Coelorachis capensis'') * ''Mnesithea clarkei'' <small>(Hack.) de Koning & Sosef</small> (= ''Coelorachis clarkei'') * ''Mnesithea cylindrica'' <small>(Michx.) de Koning & Sosef</small> (= ''Coelorachis cylindrica'') * ''Mnesithea geminata'' <small>(Hack.) Ridl.</small> (= ''Coelorachis geminata'') * ''Mnesithea glandulosa'' <small>(Trin.) de Koning & Sosef</small> (= ''Coelorachis glandulosa'') * ''Mnesithea helferi'' <small>(Hook.f.) de Koning & Sosef</small> (= ''Coelorachis helferi'') * ''Mnesithea impressa'' <small>(Griseb.) de Koning & Sosef</small> (= ''Coelorachis impressa'') * ''Mnesithea khasiana'' <small>(Hack.) de Koning & Sosef</small> (= ''Coelorachis khasiana'') * ''Mnesithea laevispica'' <small>(Keng) de Koning & Sosef</small> (= ''Coelorachis laevispica'') * ''Mnesithea lepidura'' <small>(Stapf) de Koning & Sosef</small> (= ''Coelorachis lepidura'') * ''Mnesithea parodiana'' <small>(Henrard) de Koning & Sosef</small> (= ''Coelorachis parodiana'') * ''Mnesithea ramosa'' <small>(E.Fourn.) de Koning & Sosef</small> (= ''Coelorachis ramosa'') * ''Mnesithea rottboellioides'' <small>(R.Br.) de Koning & Sosef</small> (= ''Coelorachis rottboellioides'') * ''Mnesithea rugosa'' <small>(Nutt.) de Koning & Sosef</small> (= ''Coelorachis rugosa'') * ''Mnesithea selloana'' <small>(Hack.) de Koning & Sosef</small> (= ''Coelorachis selloana'') * ''Mnesithea striata'' <small>(Nees ex Steud.) de Koning & Sosef</small> (= ''Coelorachis striata'') * ''Mnesithea tessellata'' <small>(Steud.) de Koning & Sosef</small> (= ''Coelorachis tessellata'') * ''Mnesithea tuberculosa'' <small>(Nash) de Koning & Sosef</small> (= ''Coelorachis tuberculosa'')
==References== {{Reflist|refs= <ref name=GRIN_g14049>{{cite web |title=Gen. ''Coelorachis'' Brongn. |work=Germplasm Resources Information Network |publisher=Agricultural Research Service, United States Department of Agriculture|url=https://npgsweb.ars-grin.gov/gringlobal/taxon/taxonomygenus?id=14049 |access-date=2024-11-26 }}</ref>
<ref name=POWO_17777-1>{{Cite POWO|title=''Coelorachis'' Brongn..|id=17777-1|access-date=2024-11-26|mode=cs1}}</ref>
<ref name=POWO_18517-1>{{Cite POWO|title=''Mnesithea'' Kunth|id=18517-1|access-date=2024-11-25|mode=cs1}}</ref>
<ref name=Sore15t1>{{cite journal |last1=Soreng |first1=Robert J. |last2=Peterson |first2=Paul M. |last3=Romschenko |first3=Konstantin |last4=Davidse |first4=Gerrit |last5=Zuloaga |first5=Fernando O. |last6=Judziewicz |first6=Emmet J. |last7=Filgueiras |first7=Tarciso S. |last8=Davis |first8=Jerrold I. |last9=Morrone |first9=Osvaldo |title=A worldwide phylogenetic classification of the Poaceae (Gramineae) |journal=Journal of Systematics and Evolution |volume=53 |issue=2 |year=2015 |pages=117–137 |issn=1674-4918 |doi=10.1111/jse.12150|s2cid=84052108 |hdl=11336/25248 |hdl-access=free }} Table 1.</ref>
<ref name=VeldHeiddeKoKraa13>{{Citation |last1=Veldkamp |first1=J.F. |last2=Heidweiller |first2=J. |last3=de Koning |first3=R. |last4=Kraaijeveld |first4=A.R. |last5=Sosef |first5=M.S.M. |last6=Strucker |first6=R.C.W. |date=2013 |title=A revision of ''Mnesithea'' (Gramineae - Rottboelliinae) in Malesia and Thailand |journal=Blumea |volume=58 |issue=3 |pages=277–292 |doi=10.3767/000651913X678257 |name-list-style=amp |mode=cs1|doi-access=free }}</ref>
<ref name=WelkMcKaEstePasq20>{{Citation |last1=Welker |first1=Cassiano A. D. |last2=McKain |first2=Michael R. |last3=Estep |first3=Matt C. |last4=Pasquet |first4=Rémy S. |last5=Chipabika |first5=Gilson |last6=Pallangyo |first6=Beatrice |last7=Kellogg |first7=Elizabeth A. |date=2020 |title=Phylogenomics enables biogeographic analysis and a new subtribal classification of Andropogoneae (Poaceae—Panicoideae) |journal=Journal of Systematics and Evolution |volume=58 |issue=6 |pages=1003–1030 |doi=10.1111/jse.12691 |name-list-style=amp }}</ref> }}
{{Taxonbar|from1=Q2486728|from2=Q3347823}}
Category:Andropogoneae Category:Poaceae genera Category:Taxa named by Carl Sigismund Kunth