{{Short description|Genus of ferns}} {{automatic taxobox |image = Pityrogramma sulphurea - Botanischer Garten, Dresden, Germany - DSC08795.JPG |image_caption = ''Pityrogramma sulphurea'' |taxon = Pityrogramma |authority = Link<ref name=POWO_30000162-2/> | type_species = ''Pityrogramma chrysophylla'' | type_species_authority = (Swartz) Link |subdivision_ranks = Species |subdivision = See text. | synonyms = * ''Calomelanos'' <small>(Presl 1836) Lindl.</small> * ''Ceropteris'' <small>Link</small> * ''Neurogramma'' <small>Link</small> * ×''Pityromeria'' <small>Gómez</small> * ''Trismeria'' <small>Fée 1852</small> }} {{For|the silver fern|Alsophila dealbata}}
'''''Pityrogramma''''', the '''silverback ferns''', or '''goldback ferns''',{{citation needed|date=December 2019}} is a fern genus in the subfamily Pteridoideae of the family Pteridaceae.<ref name="PPGI" />
==Species== {{As of|2019|December}}, ''Plants of the World Online'' recognized the following species and hybrids:<ref name=POWO_30000162-2/>
{| class="wikitable" |- ! colspan=1 |Phylogeny of ''Pityrogramma'' <ref>{{cite journal |last1=Nitta |first1=Joel H. |last2=Schuettpelz |first2=Eric |last3=Ramírez-Barahona |first3=Santiago |last4=Iwasaki |first4=Wataru |display-authors=et al. |year=2022 |title=An Open and Continuously Updated Fern Tree of Life |journal=Frontiers in Plant Science |volume=13 |issue= |article-number= 909768| doi=10.3389/fpls.2022.909768 |pmid= 36092417|pmc= 9449725|bibcode= 2022FrPS...1309768N|doi-access=free}}</ref><ref>{{cite web|last1= |first1= |last2= |display-authors=et al. |year=2023 |title=Tree viewer: interactive visualization of FTOL |url=https://fernphy.github.io/viewer.html |version=FTOL v1.4.0 [GenBank release 253] |access-date=8 March 2023}}</ref> |- | style="vertical-align:top| {{clade|style=font-size:90%;line-height:80% |1={{clade |label1=section |sublabel1=''Cerogramme'' |1={{clade |1=''P. ebenea'' <small>(von Linné) Proctor</small> (Mountain silverback fern) |2={{clade |1=''P. austroamericana'' <small>Domin</small> |2=''P. sulphurea'' <small>(Swartz) Maxon</small> (Jamaican goldback fern) }} }} |label2=section |sublabel2=''Calomelanos'' |2={{clade |1=''P. trifoliata'' <small>(von Linné) Tryon</small> (Goldenrod Fern, threeleaf goldback fern) |2={{clade |1=''P. calomelanos'' <small>(von Linné) Link</small> (Dixie silverback fern) |2=''P. ochracea'' <small>(Presl) Domin</small> }} }} }} }} |} Other species: {{Div col|colwidth=20em}} *''P. aurantiaca'' <small>(Hieron.) C.Chr.</small> *''P. chrysoconia'' <small>Maxon ex Domin</small> *''P. chrysophylla'' <small>Link</small> (Island goldback fern) *''P. dealbata'' <small>(C.Presl) Domin</small> *''P. dukei'' <small>Lellinger</small> *''P. eggersii'' <small>Maxon</small> *''P. elongata'' <small>(C.Chr.) Pic.Serm.</small> *''P. euchrysa'' <small>(Ekman ex Christensen) Ekman ex Testo</small> *''P. ferruginea'' <small>(Kunze) Maxon</small> *''P.'' ×''herzogii'' <small>(Rosenst.) L.D.Gómez</small> *''P. hirsuta'' <small>Testo</small> *''P. humbertii'' <small>C.Chr.</small> *''P. jamesonii'' <small>(Baker) Domin</small> *''P. lehmannii'' <small>(Hieron.) R.M.Tryon</small> *''P.'' ×''mckenneyi'' <small>W.H.Wagner</small> *''P. opalescens'' <small>Sundue</small> *''P. pearcei'' <small>Domin</small> *''P. pulchella'' <small>Domin</small> *''P. rupicola'' <small>Pic.Serm.</small> *''P. schizophylla'' <small>(Baker) Maxon</small> *''P. triangulata'' <small>Maxon</small> *''P. ×watkinsii'' <small>Testo</small> *''P. williamsii'' <small>Proctor</small> {{Div col end}}{{Multiple image | image1 = Gold fern imported from iNaturalist photo 158544643 on 3 December 2024 (cropped).jpg | image2 = Silver fern imported from iNaturalist photo 359672734 on 3 December 2024 (cropped).jpg | caption2 = Silver fern (''P. calomelanos'') | caption1 = Gold fern (''P. austroamericana'') | total_width = 400 | align = center }} ==References== {{Reflist|refs= <ref name=POWO_30000162-2>{{citation |title=''Pityrogramma'' Link |work=Plants of the World Online |publisher=Royal Botanic Gardens, Kew|url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:30000162-2 |access-date=2019-12-28 }}</ref>
<ref name=PPGI>{{Citation |author=PPG I |year=2016 |title=A community-derived classification for extant lycophytes and ferns |journal=Journal of Systematics and Evolution |volume=54 |issue=6 |pages=563–603 |doi=10.1111/jse.12229|s2cid=39980610 |doi-access=free |bibcode=2016JSyEv..54..563. }}</ref> }} * [http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=125649 eFloras entry]
{{Plant classification}} {{Fern classification}} {{Taxonbar|from=Q2637071}} Category:Pteridaceae Category:Fern genera