{{Short description|Genus of liverworts}} {{Use dmy dates|date=May 2024}} {{Automatic taxobox | image = Porella_platyphylla.jpg | image_caption = ''Porella platyphylla'' | taxon = Porella | authority = L.<ref>Sp. Pl. 2: 1106. 1753.</ref> | subdivision_ranks = Species | subdivision = See text | synonyms_ref = {{cn|date=November 2024}} | synonyms = {{Genus list |Macvicaria |W.E. Nicholson |Madotheca |Dum. |Schulthesia |Raddi }} }}
'''''Porella''''' is a large, common, and widespread genus of liverworts in order Porellales. It is a member of the family Porellaceae within that order.
There were 84 species recognized in 2016, most of them from East Asia.<ref>{{cite journal | author=Söderström | year=2016 | title=World checklist of hornworts and liverworts | journal=PhytoKeys | issue=59 | pages=1–826| doi=10.3897/phytokeys.59.6261|display-authors=etal | pmid=26929706 | pmc=4758082 | doi-access=free }}</ref> World Flora Online accepts 125 species,<ref name="Worldflora">{{cite web |title=''Porella'' L. |url=http://www.worldfloraonline.org/taxon/wfo-4000030935 |website=www.worldfloraonline.org |access-date=3 July 2023}}</ref> and GBIF accepts 150 species (as of 4 July 2023).<ref name="GBIF"/>
The genus has a wide cosmopolitan distribution in temperate areas,<ref name="GBIF"/> where it is commonly found growing attached to the bark of trees. Members of the genus have lobed leaves with a large upper lobe and small lower lobe.<ref name=":0">{{Cite journal |last=Barbour |first=Wm. C. |date=1902 |title=Porella |url=https://www.jstor.org/stable/3237914 |journal=The Bryologist |volume=5 |issue=2 |pages=32–36 |doi=10.2307/3237914 |jstor=3237914 |issn=0007-2745|url-access=subscription }}</ref>
Species ''Porella arboris-vitae'', ''Porella bolanderi'',<ref name=":0" /> ''Porella cordeana'', ''Porella navicularis'', ''Porella pinnata'',<ref name=":0" /> ''Porella platyphylla'' and ''Porella roellii'', were all found in Montana, USA.<ref>{{Cite web |last=Ratz |first=David |title=A Liverwort – Montana Field Guide |url=https://fieldguide.mt.gov/speciesDetail.aspx?elcode=NBHEP2Q0H0 |access-date=15 April 2022 |website=fieldguide.mt.gov |language=en}}</ref>
== Species == The following species are recognised in the genus ''Porella'' by GBIF;<ref name="GBIF">{{cite web |title=''Porella'' L. |url=https://www.gbif.org/species/2688728 |website=www.gbif.org |access-date=3 July 2023 |language=en}}</ref>
{{div col}} *''Porella abyssinica'' {{Au|(Nees) Trevis.}} *''Porella acanthota'' {{Au|Spruce}} *''Porella acutifolia'' {{Au|(Lehm. & Lindenb.) Trevis.}} *''Porella alpina'' {{Au|(Lindenb. & Gottsche) Trevis.}} *''Porella amoena'' {{Au|(Colenso ex Stephani) S.Hatt.}} *''Porella andica'' {{Au|(Gottsche) Hässel}} *''Porella apiculata'' {{Au|P.C.Chen & P.C.W}} *''Porella arborea'' {{Au|Trevis.}} * ''Porella arboris-vitae'' {{Au|(With.) Grolle}}<ref name=":0" /> *''Porella assimilis'' {{Au|(Hampe ex Gottsche, Lindenb. & Nees) Trevis.}} *''Porella baueri'' {{Au|(Schiffn.) C.E.O.Jensen}} *''Porella biedermannii'' {{Au|Frank Müll.}} * ''Porella bolanderi'' {{Au|(Austin) Pearson}} *''Porella borellii'' {{Au|(Gola) Parihar}} *''Porella brachiata'' {{Au|(Taylor) Spruce}} *''Porella brasiliensis'' {{Au|(Raddi) Schiffn.}} *''Porella caespitans'' {{Au|(Steph.) S.Hatt.}} *''Porella calcicola'' {{Au|S.Hatt.}} *''Porella campylophylla'' {{Au|(Lehm. & Lindenb.) Trevis.}} *''Porella canariensis'' {{Au|(F.Weber) Underw.}} *''Porella capehornensis'' {{Au|Swails}} *''Porella capehorniensis'' {{Au|Swails}} *''Porella capensis'' {{Au|(Gottsche) Mitt.}} *''Porella caucasica'' {{Au|Steph.}} *''Porella chenii'' {{Au|S.Hatt.}} *''Porella chilensis'' {{Au|(Lehm. & Lindenb.) Trevis.}} *''Porella chinensis'' {{Au|(Steph.) S.Hatt.}} *''Porella circinnata'' {{Au|Lindb.}} *''Porella complanata'' {{Au|(Stephani) Swails}} *''Porella conduplicata'' {{Au|(Stephani) S.Hatt.}} * ''Porella cordeana'' {{Au|(Huebener) Moore}} *''Porella cranfordii'' {{Au|Steph.}} *''Porella crispata'' {{Au|(Hook.) Trevis.}} *''Porella cucullistipula'' {{Au|Steph.}} *''Porella densifolia'' {{Au|(Steph.) S.Hatt.}} *''Porella denticulata'' {{Au|(Kashyap & R.S.Chopra) J.X.Luo}} *''Porella elegantula'' {{Au|(Mont.) E.A.Hodgs.}} *''Porella fauriei'' {{Au|(Stephani) S.Hatt.}} *''Porella faurieri'' {{Au|(Steph.) S.Hatt.}} *''Porella fengii'' {{Au|P.C.Chen & S.Hatt.}} *''Porella frullanioides'' {{Au|(Stephani) J.X.Luo}} *''Porella fulfordiana'' {{Au|Swails}} *''Porella geheebii'' {{Au|(Steph.) S.Hatt.}} *''Porella globulus'' {{Au|Schiller}} *''Porella gracillima'' {{Au|Mitt.}} *''Porella grandifolia'' {{Au|(Steph.) S.Hatt.}} *''Porella grandiloba'' {{Au|Lindb.}} *''Porella grollei'' {{Au|S.Hatt.}} *''Porella handelii'' {{Au|S.Hatt.}} *''Porella hattorii'' {{Au|Udar & Shaheen}} *''Porella heterophylla'' {{Au|(Stephani) S.Hatt.}} *''Porella hirta'' {{Au|(Stephani) S.Hatt.}} *''Porella hirtella'' {{Au|(Stephani) S.Hatt.}} *''Porella hoeana'' {{Au|S.Hatt.}} *''Porella hohnelliana'' {{Au|Stephani}} *''Porella hsinganica'' {{Au|C.Gao & C.W.Aur}} *''Porella imbricata'' {{Au|Lour.}} *''Porella inaequalis'' {{Au|(Gottsche) Perss.}} *''Porella integrifolia'' {{Au|Stephani ex S.Hatt.}} *''Porella japonica'' {{Au|(Sande Lac.) Mitt.}} *''Porella javanica'' {{Au|(Gottsche) Inoue}} *''Porella lancifolia'' {{Au|(Stephani) Grolle}} *''Porella latifolia'' {{Au|J.S.Lou & Q.Li}} *''Porella leiboldii'' {{Au|(Lehm.) Trevis.}} *''Porella liebmanniana'' {{Au|(Lindenb. & Gottsche) Trevis.}} *''Porella lindbergiana'' {{Au|(Gottsche) O.Yano}} *''Porella linguaefolia'' {{Au|(Stephani) S.Hatt.}} *''Porella lobata'' {{Au|Stephani}} *''Porella longifolia'' {{Au|(Steph.) S.Hatt.}} *''Porella madagascariensis'' {{Au|(Nees & Mont.) Trevis.}} *''Porella integrifolia'' {{Au|Stephani ex S.Hatt.}} *''Porella japonica'' {{Au|(Sande Lac.) Mitt.}} *''Porella javanica'' {{Au|(Gottsche) Inoue}} *''Porella lancifolia'' {{Au|(Stephani) Grolle}} *''Porella latifolia'' {{Au|J.S.Lou & Q.Li}} *''Porella leiboldii'' {{Au|(Lehm.) Trevis.}} *''Porella liebmanniana'' {{Au|(Lindenb. & Gottsche) Trevis.}} *''Porella lindbergiana'' {{Au|(Gottsche) O.Yano}} *''Porella linguaefolia'' {{Au|(Stephani) S.Hatt.}} *''Porella lobata'' {{Au|Stephani}} *''Porella longifolia'' {{Au|(Steph.) S.Hatt.}} *''Porella madagascariensis'' {{Au|(Nees & Mont.) Trevis.}} *''Porella matongae'' {{Au|(Herzog) E.W.Jones}} *''Porella maxima'' {{Au|(Steph.) M.L.So}} *''Porella maxonii'' {{Au|(Herzog) Swails}} *''Porella mexicana'' {{Au|(Hampe ex Gottsche, Lindenb. & Nees) Trevis.}} *''Porella montantii'' {{Au|(Steph.) E.W.Jones}} * ''Porella navicularis'' {{Au|(Lehm. & Lindenb.) Pfeiff.}} *''Porella niitakensis'' {{Au|(Horik.) S.Hatt.}} *''Porella nitens'' {{Au|(Steph.) S.Hatt.}} *''Porella nitidula'' {{Au|(C.Massal. ex Stephani) S.Hatt.}} *''Porella oblongifolia'' {{Au|S.Hatt.}} *''Porella obtusata'' {{Au|(Taylor) Trevis.}} *''Porella obtusiloba'' {{Au|S.Hatt.}} *''Porella ovalis'' {{Au|(Gottsche ex Stephani) S.Hatt. & G.C.Zhang}} *''Porella parvistipula'' {{Au|(Stephani) S.Hatt.}} *''Porella perrottetiana'' {{Au|(Mont.) Trevis.}} *''Porella peruviana'' {{Au|(Nees) Trevis.}} *''Porella piligera'' {{Au|Stephani ex Pocs}} * ''Porella pinnata'' {{Au|L.}}<ref name=":0" /> *''Porella planifolia'' {{Au|J.S.Lou}} * ''Porella platyphylla'' {{Au|(L.) Pfeiff.}} *''Porella platyphylloidea'' {{Au|(Schwein.) Lindb.}} *''Porella plicata'' {{Au|J.S.Lou}} *''Porella plumosa'' {{Au|(Mitt.) Parihar}} *''Porella polita'' {{Au|Mitt.}} *''Porella prolixa'' {{Au|(Gottsche) E.W.Jones}} *''Porella ptilopsis'' {{Au|Spruce}} *''Porella pulcherrima'' {{Au|Herzog & S.Hatt.}} *''Porella queenslandica'' {{Au|(Stephani) S.Hatt.}} *''Porella ramentifissa'' {{Au|(Steph. ex Herzog) Swails}} *''Porella recurviloba'' {{Au|Y.Jia & Qiang He}} *''Porella reflexa'' {{Au|(Lehm. & Lindenb.) Trevis.}} *''Porella renifolia'' {{Au|(Steph.) Swails}} *''Porella revoluta'' {{Au|(Lehm. & Lindenb.) Trevis.}} *''Porella rikuzana'' {{Au|(Stephani) S.Hatt.}} * ''Porella roellii'' {{Au|Steph.}} *''Porella rotundifolia'' {{Au|Schiffner}} *''Porella saccata'' {{Au|M.L.So}} *''Porella setigera'' *''Porella sharpii'' {{Au|Swails}} *''Porella shikokiana'' {{Au|H.Hara}} *''Porella sichuanensis'' {{Au|S.Hatt. & K.C.Chang}} *''Porella spinulosa'' {{Au|(Steph.) S.Hatt.}} *''Porella squamulifera'' {{Au|(Taylor) Trevis.}} *''Porella stephaniana'' {{Au|(C.Massal.) S.Hatt.}} *''Porella subdentata'' {{Au|(Mitt.) Steph.}} *''Porella subgrandiloba'' {{Au|Grolle & M.L.So}} *''Porella subobtusa'' {{Au|(Steph.) S.Hatt.}} *''Porella subparaphyllina'' {{Au|J.S.Lou}} *''Porella subsquarrosa'' {{Au|(Nees & Mont.) Trevis.}} *''Porella suginoi'' {{Au|Inoue}} *''Porella swailsii'' {{Au|Grolle}} *''Porella swartziana'' {{Au|(F.Weber) Trevis.}} *''Porella tenera'' {{Au|H.Hara}} *''Porella triquetra'' {{Au|(Steph.) E.W.Jones}} *''Porella truncata'' {{Au|J.S.Lou}} *''Porella ulophylla'' {{Au|(Steph.) S.Hatt.}} *''Porella undatorevoluta'' {{Au|J.S.Lou}} *''Porella urceolata'' {{Au|S.Hatt.}} *''Porella urogea'' {{Au|(C.Massal.) S.Hatt.}} *''Porella urophylla'' {{Au|(C.Massal.) S.Hatt.}} *''Porella ussuriensis'' {{Au|(Stephani) P.C.Chen}} *''Porella vallis-gratiae'' {{Au|(Gottsche) E.W.Jones}} *''Porella variabilis'' {{Au|(Kashyap & R.S.Chopra) Parihar}} *''Porella vernicosa'' {{Au|Lindb.}} *''Porella viridissima'' {{Au|(Mitt.) Grolle}} *''Porella wakawana'' {{Au|Stephani}} *''Porella wataugensis'' {{Au|(Sull.) Underw. ex M.Howe}} *''Porella zikanii'' {{Au|Herzog}} {{div col end}}
== References == {{Reflist}}
== External links == {{Wikispecies-inline}}
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Category:Porellales Category:Porellales genera Category:Botanical taxa named by Carl Linnaeus Category:Taxa described in 1753
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