{{Short description|Genus of ferns}} {{Automatic taxobox |image = |image_caption = |taxon = Bosmania |authority = Testo<ref name=CFLW/> |synonyms = {{Genus list }} | synonyms_ref = <ref name=CFLW/> | subdivision_ranks = Species | subdivision = See text. }}

'''''Bosmania''''' is a genus of ferns in the family Polypodiaceae, subfamily Microsoroideae, erected in 2019.<ref name=TestFielSessSund19/> {{As of|2020|February}}, the genus was not accepted by some sources.

==Description== ''Bosmania'' species are terrestrial plants, lithophytes or epiphytes. They grow from creeping rhizomes that are circular in cross-section, or slightly flattened from top to bottom, with roots emerging from the underside. The rhizome has brown scales, 1.5–9&nbsp;mm long, 1–3&nbsp;mm wide. Their leaves are elliptical in shape, undivided, up to 110&nbsp;cm long and 15&nbsp;cm wide, and have a wingless petiole 1–15&nbsp;cm long. A characteristic of the genus is that the leaves are "seasonally deciduous", i.e. shed during unfavourable conditions. The blade of the leaf (lamina) is thin with prominent veins. The sori are round to slightly elliptical with bright yellow monolete spores.<ref name=TestFielSessSund19/>

==Taxonomy== The division of the subfamily Microsoroideae into genera has long been uncertain. A 2019 molecular phylogenetic study suggested that there were three clades, comprising species previously mainly placed in ''Microsorum'', that were close to ''Lecanopteris'' sensu stricto and distinct from other clades in the subfamily. The authors of the study preferred to set up three extra monophyletic genera, rather than use a broader circumscription of ''Lecanopteris''. The genera are related as shown in the following cladogram.<ref name=TestFielSessSund19/>

{{clade |label1=''Lecanopteris'' s.l. |1={{clade |1=''Bosmania'' |2={{clade |1=''Dendroconche'' |2={{clade |1=''Zealandia'' |2=''Lecanopteris'' s.s. }} }} }} }}

{{As of|2020|February}}, the ''Checklist of Ferns and Lycophytes of the World'' recognized the segregate genera, including ''Bosmania'';<ref name=CFLW/> other sources did not.<ref name=POWO/>

The genus name ''Bosmania'' honours Dutch botanist Monique Bosman, who first identified and described this group of species in her 1991 monograph on ''Microsorum''.<ref name=TestFielSessSund19/>

===Species=== {{As of|2020|February}}, the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species; all have previously been placed in the genus ''Microsorum'':<ref name=CFLW/> *''Bosmania lastii'' <small>(Baker) Testo</small> (syn. ''Microsorum lastii'' <small>(Baker) Tardieu</small>) *''Bosmania leandriana'' (<small>Tardieu) Testo</small> (syn. ''Microsorum leandrianum'' <small>Tardieu</small>) *''Bosmania membranacea'' <small>(D.Don) Testo</small> (syn. ''Microsorum membranaceum'' <small>(D.Don) Ching</small>)

==Distribution and habitat== ''Bosmania membranacea'' is widespread in tropical Asia, from the Indian subcontinent and China through Indochina to Taiwan and the Philippines.<ref name=CFLW/><ref name=TestFielSessSund19/> The other two species are rare, found only in Madagascar. They are usually found on limestone or soil derived from limestone.<ref name=TestFielSessSund19/>

==References== {{Reflist|refs= <ref name=CFLW>{{Citation |last1=Hassler |first1=Michael |last2=Schmitt |first2=Bernd |date=January 2020 |contribution=Bosmania |title=Checklist of Ferns and Lycophytes of the World |at=Version 8.20 |url=https://worldplants.webarchiv.kit.edu/ferns/ |accessdate=2020-02-11 |name-list-style=amp |archive-date=2017-09-02 |archive-url=https://web.archive.org/web/20170902225743/http://worldplants.webarchiv.kit.edu/ferns/ |url-status=dead }}</ref>

<ref name=POWO>{{citation |title=Plants of the World Online |publisher=Royal Botanic Gardens, Kew|url=http://www.plantsoftheworldonline.org |archive-url=https://web.archive.org/web/20170322171139/http://plantsoftheworldonline.org/ |url-status=dead |archive-date=March 22, 2017 |accessdate=2020-02-11 }}</ref>

<ref name=TestFielSessSund19>{{Citation |last1=Testo |first1=Weston L. |last2=Field |first2=Ashley R. |last3=Sessa |first3=Emily B. |last4=Sundue |first4=Michael |date=2019 |title=Phylogenetic and Morphological Analyses Support the Resurrection of ''Dendroconche'' and the Recognition of Two New Genera in Polypodiaceae Subfamily Microsoroideae |journal=Systematic Botany |volume=44 |issue=4 |pages=737–752 |url=http://sites.clas.ufl.edu/bio-sessalab/files/SysBot2019.pdf |accessdate=2020-02-11 |doi=10.1600/036364419X15650157948607 |s2cid=208176686 |name-list-style=amp |archive-date=2020-02-13 |archive-url=https://web.archive.org/web/20200213104046/http://sites.clas.ufl.edu/bio-sessalab/files/SysBot2019.pdf |url-status=dead }}</ref> }}

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Category:Polypodiaceae Category:Fern genera