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Superregnum: Eukaryota
Regnum: Plantae
Divisio: Tracheophyta
Divisio: Pteridophyta
Classis: Polypodiopsida
Ordo: Polypodiales

Familia: Aspleniaceae
Genus: Asplenium
Overview of species
a

A. abscissum – A. abyssinicum – A. achalense – A. acostae – A. acrobryum – A. actiniopteroides – A. acuminatum – A. acutiserratum – A. adamsii – A. adiantum-nigrum – A. adnatum – A. adulterinum – A. aegaeum – A. aequabile – A. aequibasis – A. aethiopicum – A. affine – A. africanum – A. afzelii – A. alatum – A. albersii – A. altajense – A. alvarezense – A. amaurolobum – A. ambohitantelense – A. amboinense – A. anceps – A. andapense – A. andreisii – A. aneitense – A. angolense – A. anguifrons – A. anguineum – A. angustum – A. anisophyllum – A. annetii – A. annobonense – A. anogrammoides – A. antiquum – A. antrophyoides – A. apertum – A. apoense – A. appendiculatum – A. araucarietii – A. arcanum – A. arcumontanum – A. argentinum – A. ascensionis – A. asterolepis – A. athertonense – A. athyrioides – A. atrovirens – A. attenuatum – A. atuntzeense – A. aureum – A. auriculatum – A. auritum – A. australasicum – A. austrobrasiliense – A. austrochinense – A. ayopayense – A. azoricum
b

A. badinii – A. baileyanum – A. balansae – A. balearicum – A. balense – A. bangii – A. barbaense – A. barclayanum – A. barteri – A. batuense – A. beckeri – A. belloides – A. biafranum – A. bicarinatum – A. bicentenniale – A. bifrons – A. bipartitum – A. bipinnatifidum – A. blastophorum – A. blepharodes – A. blepharophorum – A. boiteaui – A. bolivianum – A. boltonii – A. boreale – A. borneense – A. bourgaei – A. brachycarpum – A. bradeanum – A. bradei – A. bradleyi – A. brasiliense – A. brausei – A. breedlovei – A. buettneri – A. bugoiense – A. bulbiferum – A. bullatum – A. burundense
c

A. callipteris – A. campos-portoi – A. canariense – A. cancellatum – A. canelense – A. capense – A. capillipes – A. capitisyork – A. carinatum – A. cariocanum – A. caripense – A. carnavonense – A. carruthersii – A. carvalhoanum – A. castaneoviride – A. castaneum – A. cataractarum – A. ceii – A. centrafricanum – A. centrifugale – A. cesatianum – A. ceterach – A. chaseanum – A. chathamense – A. chimantae – A. christii – A. ciliatum – A. cimmeriorum – A. cirrhatum – A. cladolepton – A. claussenii – A. clemensiae – A. clutei – A. coenobiale – A. colubrinum – A. comosum – A. compressum – A. concolor – A. confusum – A. congestum – A. contiguum – A. cordatum – A. corderoanum – A. cornutissimum – A. cornutum – A. correardii – A. cowanii – A. creticum – A. crinicaule – A. cristatum – A. cromwellianum – A. cruegeri – A. cuneatiforme – A. cuneatum – A. cuneifolium – A. currorii – A. curtissii – A. cuspidatum – A. cymbifolium – A. cyrtosorum
d

A. daghestanicum – A. dalhousieae – A. dareoides – A. daucifolium – A. davisii – A. dayi – A. decrescens – A. delavayi – A. delicatulum – A. demerkense – A. dentatum – A. depauperatum – A. dianae – A. dichotomum – A. dicranurum – A. dielerectum – A. dielfalcatum – A. dielmannii – A. dielpallidum – A. difforme – A. dimidiatum – A. dimorphum – A. diplaziosorum – A. diplosceum – A. diplotion – A. discrepans – A. disjunctum – A. dissectum – A. divaricatum – A. dognyense – A. domingense – A. douglasii – A. dregeanum – A. drepanophyllum – A. durum
e

A. eatonii – A. eberhardtii – A. ecuadorense – A. ekmanii – A. elaphoglossoides – A. elliottii – A. elmeri – A. emarginatum – A. ensiforme – A. erectum – A. erosum – A. erythraeum – A. escaleroense – A. eurysorum – A. eutecnum – A. excelsum – A. exhaustum – A. exiguum – A. extensum
f

A. falcatum – A. feei – A. fenzlii – A. fibrillosum – A. filiceps – A. filidens – A. finlaysonianum – A. fissum – A. flabellifolium – A. flabellulatum – A. flaccidum – A. flexuosum – A. foersteri – A. fontanum – A. foreziense – A. formosae – A. formosum – A. fragrans – A. funckii
g

A. gardneri – A. gastonis – A. gemmascens – A. gemmiferum – A. gentryi – A. geraense – A. ghiesbreghtii – A. gibberosum – A. gilbertii – A. gilliesii – A. gjellerupii – A. glanduliserrulatum – A. glaucostipes – A. goetzei – A. gomezianum – A. gracile – A. gregoriae – A. grevillei – A. griffithianum – A. griseum – A. guadalcanalensis – A. guangdongense – A. gueinzianum
h

A. haenkeanum – A. haenkei – A. hagenii – A. hainanense – A. haleakalense – A. hallbergii – A. hallei – A. hallii – A. hapalophyllum – A. harleyanum – A. harmanii – A. harpeodes – A. harrisii – A. hastatum – A. haughtonii – A. haurakiense – A. hemionitis – A. hemitomum – A. herpetopteris – A. heterochroum – A. heteromorphum – A. hispanicum – A. hobdyi – A. holophlebium – A. holosorum – A. holstii – A. hookerianum – A. horizontale – A. horridum – A. hostmannii – A. howeanum – A. humbertii – A. humblotii – A. hybridum – A. hymenophylloides – A. hypomelas
i

A. impressivenium – A. inaequilaterale – A. incisum – A. incurvatum – A. indusiatum – A. insiticium – A. insolitum – A. insulanum – A. insulare – A. interjectum – A. irregulare – A. isabelense
j

A. jahandiezii – A. jaundeense – A. jenmanii – A. jensenii – A. juglandifolium
k

A. kaulfussii – A. kelelense – A. khullarii – A. kiangsuense – A. kinabaluense – A. kjellbergii – A. klossii – A. komarovii – A. kunzeanum
l

A. labillardieri – A. laciniatum – A. lacinioides – A. lacinulatum – A. lademannianum – A. lambinonii – A. lamprocaulon – A. lamprophyllum – A. lancifolium – A. langsdorffii – A. laserpitiifolium – A. lastii – A. laurentii – A. laxifolium – A. leandrianum – A. ledermannii – A. lepidotum – A. lepidum – A. lepturus – A. leucostegioides – A. lilloanum – A. linckii – A. listeri – A. lividum – A. lobangense – A. lobatum – A. lobulatum – A. lokohoense – A. lolegnamense – A. longicauda – A. longipes – A. longissimum – A. longum – A. lorentzii – A. loxocarpum – A. loxoscaphoides – A. loxoscaphoides – A. lunulatum – A. lyallii
m

A. macarenianum – A. macedonicum – A. macraei – A. macrodon – A. macrophlebium – A. macrophyllum – A. macrosorum – A. macrurum – A. malcolm-smithii – A. mangindranense – A. mannii – A. mantalingahanum – A. marattioides – A. marinum – A. marojejyense – A. martianum – A. mauritiensis – A. maxonii – A. megalura – A. merapohense – A. micantifrons – A. micropaleatum – A. microtum – A. microxiphion – A. mildbraedii – A. milnei – A. minimum – A. minutifolium – A. miradorense – A. modestum – A. monanthes – A. monodon – A. monotis – A. montanum – A. morobense – A. mortonii – A. mosetenense – A. mossambicense – A. mourai – A. mucronatum – A. muenchii – A. multiforme – A. musifolium – A. myriophyllum – A. mysorense
n

A. neobrackenridgei – A. neohainanense – A. neolaserpitifolium – A. nephrolepioides – A. nesii – A. nesioticum – A. nidoides – A. nidus – A. nigrescens – A. nigripes – A. nigritianum – A. nitens – A. nitidum – A. normale – A. normaloides – A. novae-caledoniae – A. novoguineense – A. nutans
o

A. obesum – A. oblongatum – A. oblongifolium – A. obovatum – A. obtusatum – A. ocoense – A. octoploideum – A. oellgaardii – A. ofeliae – A. oldhamii – A. oligolepidum – A. oligophlebium – A. oligophyllum – A. oligosorum – A. olivaceum – A. onopteris – A. oroupouchense – A. otites – A. ovalescens
p

A. pachychlamys – A. pacificum – A. paedigens – A. palaciosii – A. paleaceum – A. palmeri – A. papuanum – A. paradoxum – A. parksii – A. parvisorum – A. parvum – A. patagonicum – A. paucidens – A. paucifolium – A. paucivenosum – A. pauperequitum – A. pearcei – A. pedicularifolium – A. pellucidum – A. perakense – A. perlongum – A. perplexum – A. persicifolium – A. peruvianum – A. peteri – A. petiolulatum – A. petrarchae – A. phillipsianum – A. phyllitidis – A. picardae – A. pifongiae – A. pinnatifidum – A. platybasis – A. platyneuron – A. plenum – A. pleurosorum – A. pocsii – A. poloense – A. polyodon – A. polyphyllum – A. ponapeanum – A. poolii – A. potosinum – A. powellii – A. praegracile – A. praemorsum – A. presolanense – A. preussii – A. pringlei – A. prionitis – A. projectum – A. prolongatum – A. protensum – A. protractum – A. pseuderectum – A. pseudoangustum – A. pseudobulbiferum – A. pseudocaudatum – A. pseudofugax – A. pseudolaserpitiifolium – A. pseudonitidum – A. pseudopellucidum – A. pseudopraemorsum – A. pseudotenerum – A. pseudovulcanicum – A. psychropolitanum – A. pteridoides – A. pteropus – A. pulchellum – A. pulcherrimum – A. pululahuae – A. pumilum – A. punjabense – A. purdieanum
q

A. quaylei – A. quitense
r

A. raddianum – A. radicans – A. rapense – A. rebeccae – A. rectangulare – A. recumbens – A. reekmansii – A. regis – A. regulare – A. repens – A. resiliens – A. reuteri – A. rhizophyllum – A. rhomboidale – A. richardii – A. riswanii – A. ritoense – A. rockii – A. rosenstockianum – A. ruizianum – A. rukararense – A. ruprechtii – A. rutaceum – A. ruta-muraria – A. rutifolium – A. rutshuruense – A. ruwenzoriense
s

A. sagittatum – A. salicifolium – A. salignum – A. salwinense – A. samarkandense – A. sampsonii – A. sanchezii – A. sancti-christofori – A. sandersonii – A. sarelii – A. saxicola – A. scalare – A. scandens – A. scandicinum – A. schelpei – A. schizocarpum – A. schizophyllum – A. schizotrichum – A. schnellii – A. schultzei – A. schwackei – A. schweinfurthii – A. sciadophilum – A. scleroprium – A. scolopendrioides – A. scolopendrium – A. scortechinii – A. sebungweense – A. seelosii – A. seileri – A. sellowianum – A. semipinnatum – A. septentrionale – A. serra – A. serratifolium – A. serratum – A. serricula – A. sertularioides – A. sessilifolium – A. sessilipinnum – A. setisectum – A. setoi – A. setularioides – A. shawii – A. shimurae – A. shuttleworthianum – A. siamense – A. sikkimbirii – A. simii – A. simile – A. simonsianum – A. simplicifolium – A. simplicifrons – A. smedsii – A. soleirolioides – A. solmsii – A. spannagelii – A. speluncae – A. sphaerosporum – A. sphenotomum – A. spirale – A. splendens – A. squamosum – A. squamuliferum – A. stantoni – A. staudtii – A. stauntonii – A. steerei – A. stellatum – A. stenochlaenoides – A. stenolobum – A. stereophyllum – A. stipicellatum – A. stipitiforme – A. stoloniferum – A. stolonipes – A. stuebelianum – A. stuhlmannii – A. subaequilaterale – A. subaquatile – A. subemarginatum – A. subflexuosum – A. subglandulosum – A. subintegrum – A. sublaserpitiifolium – A. submarginatum – A. subspathulinum – A. sulcatum – A. sumatranum – A. surrogatum
t

A. tabinense – A. tadei – A. tafanum – A. tamandarei – A. tenerrimum – A. tenerum – A. tenuicaudatum – A. tenuiculum – A. tenuifolium – A. teratophylloides – A. terorense – A. theciferum – A. thunbergii – A. translucens – A. trapezoideum – A. tricholepis – A. trichomanes – A. trifoliatum – A. trigonopterum – A. trilobatum – A. trilobum – A. trindadense – A. triphyllum – A. tripteropus – A. truncorum – A. tryonii – A. tsaratananense – A. tuerckheimii – A. tunquiniense – A. tutwilerae
u

A. udzungwense – A. uhligii – A. ulbrichtii – A. ultimum – A. underwoodii – A. uniseriale – A. unisorum
v

A. vareschianum – A. variabile – A. veneticolor – A. venturae – A. venustum – A. verecundum – A. vespertinum – A. vieillardii – A. virchowii – A. virens – A. viride – A. virillae – A. vittiforme – A. viviparioides – A. volkensii – A. vomeriforme – A. vulcanicum
w

A. wacketii – A. warburgkianum – A. warneckei – A. werneri – A. wildii – A. wilfordii – A. wrightii
y

A. yelagagense – A. yoshinagae
z

A. zamiifolium – A. zenkerianum
Nothospecies: (122)

A. × akaishiense – A. × akimense – A. × alternifolium – A. × aran-tohanum – A. × artanense – A. × badense – A. × barrancense – A. × bavaricum – A. × bechereri – A. × biscayneanum – A. × bosco-gurinense – A. × bouharmontii – A. × boydstoniae – A. × brissaginense – A. × capillicaule – A. × capillipoides – A. × celtibericum – A. × centovallense – A. × chasmophilum – A. × chingii – A. × clermontiae – A. × confluens – A. × contrei – A. × corbariense – A. × costei – A. × coto-brusense – A. × crinolinense – A. × curtissii – A. × cyrnosardoum – A. × diasii – A. × dolosum – A. × dutartrei – A. × ebenoides – A. × fawcettii – A. × flagrum – A. × flexuosum – A. × francii – A. × garhwalense – A. × gastoni-gautieri – A. × genicoalitum – A. × gravesii – A. × helii – A. × herbwagneri – A. × heteroresiliens – A. × huawuense – A. × hungaricum – A. × iidanum – A. × inexpectatum – A. × jacksonii – A. × javorkae – A. × joellaui – A. × joncheerei – A. × kentuckiense – A. × kenzoi – A. × khaniense – A. × kidoi – A. × kitazawae – A. × kokeense – A. × krameri – A. × kuemmerlei – A. × lellingerianum – A. × lessinense – A. × liberiense – A. × ligusticum – A. × lobmingense – A. × lucrosum – A. × mendelianum – A. × microdon – A. × mitsutae – A. × montanum – A. × morganii – A. × muellerianum – A. × murariaeforme – A. × murbeckii – A. × mustangense – A. × newmanii – A. × nieschalkii – A. × orellii – A. × pagesii – A. × papyraceum – A. × perardii – A. × poscharskyanum – A. × protomajoricum – A. × rajbhandarii – A. × recoderi – A. × reichlingii – A. × reichsteinii – A. × rosselloi – A. × ruscinonense – A. × santamariae – A. × sarniense – A. × shawneense – A. × shikokianum – A. × shmakovii – A. × sleepiae – A. × sobtianum – A. × sollerense – A. × souchei – A. × sphenocookii – A. × stiriacum – A. × suevicum – A. × tagananaense – A. × tandinii – A. × tavelii – A. × ticinense – A. × tosaense – A. × trichomaniforme – A. × trudellii – A. × tubalense – A. × tyrrhenicum – A. × uiryeongse – A. × valgannense – A. × virginicum – A. × wachaviense – A. × waikamoi – A. × wangii – A. × wherryi – A. × wojaense – A. × woynarianum – A. × wudangshanense – A. × xianqianense – A. × xinyiense
Source(s) of checklist:
Unplaced names

A. × hendersonii – A. benguetense – A. bifissum – A. fibrilliferum – A. goudeyi – A. hagenbeckii – A. macrolepis – A. mexiae – A. prionurus – A. pycnophyllum – A. rhomboideum – A. russellii – A. truncatilobum
Source(s) of checklist:
Name

Asplenium L., Sp. Pl. 2: 1078. 1753; Gen. Pl. ed. 5: 485. 1754.

Lectotypus: Asplenium marinum L., designated by J.Sm., Historia Filicum 316 (1875)

Synonyms

Heterotypic
Acropteris Link, Hort. Reg. Bot. Berol. 55. 1833.
Amesium Newman, Hist. Brit. Ferns (ed. 2): 10. 1844, nom. superfl.
Antigramma C.Presl, Tent. Pterid. 120. 1836.
Arcasplenium Moore ex Baker, Kew Bull. 145. 1901.
Asplenidictyum (Hook.) J.Sm., Hist. Fil. 333. 1875.
Asplenium nothosubg. Asplenoceterach (D.E.Mey.) Rosselló, Mus, Salvo & N.Torres, Candollea 45(1): 80. 1990.
Asplenium subg. Ceterach (Willd.) Vida ex Bir, Fraser-Jenk. & Lovis, Fern Gaz. 13(1): 61. 1985.
Asplenium subg. Ceterachopsis J.Sm., Hist. Fil. 317. 1875.
Asplenium subg. Phyllitis (Hill) Jermy & Viane, J. Linn. Soc. Bot. 109(3): 322. 1992.
Asplenium subg. Phyllitopsis (Reichst.) Jermy & Viane, J. Linn. Soc. Bot. 109(3): 322. 1992.
Asplenium subg. Thamnopteris C.Presl, Tent. Pterid. 105. 1836.
Biropteris Kümmerle, Mag. Bot. Lapok 19: 2, 1920. 1922.
Boniniella Hayata, Bot. Mag. (Tokyo) 41: 709. 1927.
Caenopteris Berg., Acta Acad. Sci. Imp. Petrop. 6: 249. 1782.
Camptosorus Link, Hort. Reg. Bot. Berol. 69. 1833.
Ceterac Adans., Fam. Pl. 2: 20, 536. 1763.
Ceterach Willd., Anleit. Selbststud. Bot. 578. 1804, nom. cons.
Ceterachopsis (J.Sm.) Ching, Bull. Fan Mem. Inst. Biol. Bot. 10: 8. 1940.
Chamaefilix Hill, Brit. Herb. 526. 1756 ex Farw., Amer. Midl. Naturalist 12: 268. 1931.
Cheilosorum J.Sm., Hist. Fil. 317. 1875.
Cryptostigma A.Braun ex Mett., Fil. Hort. Bot. Lips. 80. 1856.
Darea Jussieu, Gen. pl. 15. 1789.
Dareastrum Fée, Gen. Fil. 190. 1850–52.
Diellia Brack., U.S. Expl. Exp. 16: 217. 1854.
Diplora Baker, J. Bot. 235. 1873.
Eremopodium Trevis., Atti Ist. Veneto V, 8: 589. 1877.
Glossopteris Raf., Anal. Nat. Tabl. Univ. 205 (1815), Amer. Monthly Mag. & Crit. Rev. 2: 268. 1818, nom. superfl. nom. rej. against Glossopteris Brongniart, 1828 (nom. cons.)
Glossopteris Raf., Journ. Phys. 89: 262. 1819.
Hemionites J.Sm., Hist. Fil. 318. 1875.
Hemionitidastrum Fée, Gen. Fil. 190. 1850–52.
Holodictyum Maxon, Contr. U.S. Nat. Herb. 10: 481. 1908.
Homatoneuron Klotzsch, Linn. 20: 354. 1847.
Lobium Keyserling, Pol. Cyath. Hb. Bung. 15. 1873.
Loxoscaphe Moore, Hooker's J. Bot. Kew Gard. Misc. 5: 227. 1853.
Macrophyllidium Rosenst., Repert. Spec. Nov. Regni Veg. 13: 216. 1914.
Micrasplenium Keyserling, Pol. Cyath. Hb. Bung. 15. 1873.
Micropodium Mett., Ann. Mus. Bot. Lugd.-Bat. 2: 232. 1866, (non Saporta 1861)
Neottopteridastrum Fée, Gen. Fil. 190. 1850–52.
Neottopteris J.Sm., J. Bot. (Hooker) 3: 409. 1841.
Nephrodium J.Sm., J. Bot. 3: 409. 1841.
Notolepeum Newman, (Hist. Brit. Ferns (ed. 2): 9. 1844.
Onopteris Necker, Element. Bot. 3: 316. 1790.
Parasplenium Keyserling, Pol. Cyath. Hb. Bung. 15. 1873.
Phyllitis Hill, Brit. Herb. 525, t. 74. 1756.
Pleurosorus Fée, Mém. Foug. 5 (Gen. Fil.):179. 1852.
Rutamuraria Ortega, Tabulae Bot. 31. 1773.
Schaffneria Fée, Mém. Foug. 7: 56. 1857.
Scolopendrium Adanson, Fam. Pl. 2: 20. 1763.
Sinephropteris Mickel, Brittonia 28(3): 326. 1976.
Stormesia J.Kickx f., Fl. Crypt. Env. Louvain 8. 1835.
Tarachia C.Presl, Epim. bot. 74. 1851.
Thamnopteris (C.Presl) C.Presl, Epim. bot. 68. 1851, (non Brongn. 1849, nom. superfl.)
Trichomanes Bubani, Fl. Pyr. 4: 424. 1901.
Trichoneuron Ching, Acta Phytotax. Sin. 10(2): 118. 1965.
Triphlebia Baker, Malesia (Beccari) 3: 41. 1886.
×Asplenoceterach D.E.Mey., Ber. dt. Bot. Ges. 70: 61. 1957.
×Asplenophyllitis Alston, Proc. Linn. Soc. 152: 139. 1940.
×Asplenosorus Wherry, Amer. Fern J. 27: 56. 1937, nomen
×Ceterophyllitis Pic.Serm., Webbia 34(1): 208. 1979.
×Phyllitopsis Reichst., Bot. Helv. 91: 107. 1981.

References
Primary references

Linnaeus, C. 1753. Species Plantarum. Tomus II: 1078. Reference page.
Linnaeus, C. 1754. Genera Plantarum, ed. 5: 485. Reference page.

Additional references

Brownsey, P. J. 1977. A taxonomic revision of the New Zealand species of Asplenium. New Zealand Journal of Botany 15 (1): 39–86. DOI: 10.1080/0028825X.1977.10429618 Open access. Reference page.

Links

Hassler, M. & Schmitt, B. 2019. World Ferns. Checklist of the Ferns and Lycophytes of the World. Version 7.63 – January 2019. Accessed 7 Jan 2019.
International Plant Names Index. 2019. Asplenium. Published online. Accessed: Feb. 18 2019.
The Plant List 2013. Asplenium in The Plant List Version 1.1. Published online. Accessed: 2019 Feb. 07.
Tropicos.org 2019. Asplenium. Missouri Botanical Garden. Published online. Accessed: 07 Feb. 2019.
Govaerts, R. et al. 2019. Asplenium in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2019 Feb. 07. Reference page.
Farr, E.R. & Zijlstra, G. (eds.) 1996 onwards. Asplenium in Index Nominum Genericorum (Plantarum). Accessed: 2019 Feb. 07.

Vernacular names
Deutsch: Streifenfarne
English: Spleenwort
suomi: Raunioiset
中文: 铁角蕨属

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Asplenium is a genus of about 700 species of ferns, often treated as the only genus in the family Aspleniaceae, though other authors consider Hymenasplenium separate, based on molecular phylogenetic analysis of DNA sequences, a different chromosome count, and structural differences in the rhizomes. The type species for the genus is Asplenium marinum.

Many groups of species have been separated from Asplenium as segregate genera. These include Camptosorus, Ceterach, Phyllitis, and Tarachia, but these species can form hybrids with other Asplenium species and because of this are usually included in a more broadly defined Asplenium.

Some of the older classifications elevate the Aspleniaceae to the taxonomic rank of order as Aspleniales. The newer classifications place it in the subordinal group called eupolypods within the order Polypodiales. Within the eupolypods, Aspleniaceae belongs to a clade informally and provisionally known as eupolypods II.

It has been found that in some species, the chloroplast genome has evolved in complex and highly unusual ways. This makes standard cladistic analyses unsuited to resolve the phylogeny of that particular group of ferns, and even very sophisticated computational phylogenetics methods yield little information. In addition to hybridization running rampant in parts of this genus, there are also some species like the Mother Spleenwort (A. bulbiferum) or A. viviparum which mainly reproduce asexually, essentially cloning themselves over and over again. While most are diploid or tetraploid, some species (e.g. A. shuttleworthianum) are octoploid.[1]

The most common vernacular name is spleenworts, applied to the more "typical" species. A. nidus and several similar species are called bird's-nest ferns, the Camptosorus group is known as walking ferns, and distinct names are applied to some other particularly well-known species.
Uses

Both the scientific name and the common name "spleenwort" are derived from an old belief, based on the doctrine of signatures, that the fern was useful for ailments of the spleen, due to the spleen-shaped sori on the backs of the fronds. "-wort" is an ancient English term that simply means "plant" (compare German -wurz).

A few of these ferns have some economic importance in the horticulture trade. The bird's-nest ferns (A. nidus and several very similar, closely related species) are commonly found for sale as a house plant. The Australian Mother Spleenwort (A. bulbiferum) is sometimes available at greenhouses, and is of interest, along with the related A. viviparum, for the many small bulblets borne on the fronds that may grow into new plants. This characteristic is also shared with the eastern North American Walking Fern (A. rhizophyllum) and several Mexican species including A. palmeri. The Ebony Spleenwort A. platyneuron is also sometimes sold in nurseries as a hardy plant. However, many spleenworts are epipetric or epiphytic and difficult to cultivate.

Asplenium species are used as food plants by the larvae of some Lepidoptera species including Batrachedra bedelliella which feeds exclusively on A. nidus. For diseases of Asplenium, see List of foliage plant diseases (Polypodiaceae).

References

* Shepherd, Lara D.; Holland, Barbara R. & Perrie, Leon R. (2008): Conflict amongst chloroplast DNA sequences obscures the phylogeny of a group of Asplenium ferns. Mol. Phylogenet. Evol. 48(1): 176-187. doi:10.1016/j.ympev.2008.02.023

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