Adiantum
Géineas de thart ar 200 speiceas, san fhofhíleam Vittarioideae, san fhine Pteridaceae is ea  Adiantum . Cuireann roinnt taighdeoirí é san fhine Adiantaceae, leis féin. Tagann ainm an ghéinéis ón Ghréigis, a chiallaíonn "gan a bheith ag fliuchadh", a thagraíonn do chumas na bhfronn uisce a chailleadh gan éirí  fliuch.

Is Raithneach fhíneálta ghrástúil ilbhliantúil é Adiantum capillus-veneris (nó an Dúchosach sa leagan Gaeilge), a fhaightear i ngach áit, beagnach, ach sna trópaicí go háirithe. Na froind le gais chaola dhubha ghuaireacha. Na duilleoigíní ar ghais, feanchruthach neamhrialta agus na himill fillte fúthu is ag iompar sórais (crobhaingí spóragán). Timpeall 200 speiceas ar eolas.

Liosta na Speiceas

Adiantum abscissum
Adiantum aculeolatum
Adiantum adiantoides
Adiantum aethiopicum 
Adiantum alarconianum
Adiantum aleuticum  
Adiantum amazonicum
Adiantum amblyopteridium
Adiantum amelianum
Adiantum anceps 
Adiantum aneitense
Adiantum angustatum
Adiantum annamense
Adiantum atroviride
Adiantum bellum
Adiantum bessoniae
Adiantum blumenavense
Adiantum boliviense
Adiantum bonatianum
Adiantum bonii
Adiantum brasiliense 
Adiantum breviserratum
Adiantum calcareum
Adiantum capillus-junonis
Adiantum capillus-veneris- an dúchosach
Adiantum caudatum
Adiantum celebicum
Adiantum chilense
Adiantum christii
Adiantum comoroense
Adiantum concinnum
Adiantum coreanum
Adiantum crespianum
Adiantum cultratum
Adiantum cuneatiforme
Adiantum cuneatum
Adiantum cunninghamii
Adiantum cupreum
Adiantum curvatum
Adiantum davidii
Adiantum diaphanum
Adiantum dioganum
Adiantum diphyllum
Adiantum discretodenticulatum
Adiantum dissimulatum
Adiantum edgeworthii
Adiantum elegantulum
Adiantum erylliae
Adiantum erythrochlamys
Adiantum excisum 
Adiantum fengianum
Adiantum fimbriatum
Adiantum flabellulatum
Adiantum formosum 
Adiantum fossarum
Adiantum fragile 
Adiantum fragrans 
Adiantum fructosum
Adiantum fulvum
Adiantum gertrudis
Adiantum gibbosum
Adiantum gingkoides
Adiantum glabrum
Adiantum glaureosum
Adiantum glaucescens
Adiantum glaucinum
Adiantum glaziovii
Adiantum gomphophyllum
Adiantum gracile
Adiantum gravesii
Adiantum grossum
Adiantum hispidulum 
Adiantum hollandiae
Adiantum hornei
Adiantum hosei
Adiantum imbricatum
Adiantum incertum
Adiantum incisum
Adiantum intermedium
Adiantum jordanii 
Adiantum juxtapositum
Adiantum kendalii
Adiantum kingii
Adiantum klossii
Adiantum lamrianum
Adiantum latifolium 
Adiantum lenvingei
Adiantum lianxianense
Adiantum lindenii
Adiantum lonrentzii
Adiantum lucidum
Adiantum lunulatum
Adiantum macrocladum
Adiantum macrophyllum 
Adiantum madagascariense
Adiantum malaliense
Adiantum malesianum
Adiantum mariesii
Adiantum mcvaughii
Adiantum melanoleucum 
Adiantum mendoncae
Adiantum menglianense
Adiantum mettenii
Adiantum mindanaense
Adiantum monochlamys
Adiantum monosorum
Adiantum multisorum
Adiantum myriosorum
Adiantum neoguineense
Adiantum novae-caledoniae
Adiantum nudum
Adiantum oaxacanum
Adiantum obliquum
Adiantum ogasawarense
Adiantum opacum
Adiantum ornithopodum
Adiantum ovalescens
Adiantum palaoense
Adiantum papillosum
Adiantum paraense
Adiantum patens
Adiantum pearcei
Adiantum pedatum 
Adiantum pentadactylon
Adiantum peruvianum 
Adiantum petiolatum
Adiantum philippense
Adiantum phyllitidis
Adiantum platyphyllum
Adiantum poiretti
Adiantum polyphyllum 
Adiantum pseudotinctum
Adiantum pulchellum
Adiantum pulcherrimum
Adiantum pulverulentum
Adiantum pumilum
Adiantum pyramidale 
Adiantum raddianum
Adiantum rectangulare
Adiantum reniforme
Adiantum rhizophorum
Adiantum robinsonii
Adiantum roborowskii
Adiantum rondoni
Adiantum rubellum
Adiantum rufopetalum
Adiantum scabrum
Adiantum schmalzii
Adiantum schmidtchenii
Adiantum schweinfurthii
Adiantum seemannii 
Adiantum semiorbiculatum
Adiantum senae
Adiantum serratifolium
Adiantum siamense
Adiantum sinicum
Adiantum silvaticum
Adiantum soboliferum
Adiantum sordidum
Adiantum stenochlamys
Adiantum stolzii
Adiantum subcordatum 
Adiantum subpedatum 
Adiantum tenerum
Adiantum tenuissimum
Adiantum tetragonum
Adiantum tetraphyllum 
Adiantum thalictroides
Adiantum trapeziforme 
Adiantum tricholepis
Adiantum trilobum
Adiantum tripteris
Adiantum venustum 
Adiantum villosissimum
Adiantum villosum
Adiantum viridescens
Adiantum viridimontanum 
Adiantum vivesii 
Adiantum vogelii
Adiantum wattii
Adiantum wilsonii
Adiantum zollingeri

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