''Abrodictyum'' is a fern genus in the family

Hymenophyllaceae The Hymenophyllaceae, the filmy ferns and bristle ferns, are a family of two to nine genera (depending on classification system) and about 650 known species of ferns, with a subcosmopolitan distribution, but generally restricted to very damp pla ...

. The genus is accepted in the

Pteridophyte Phylogeny Group The Pteridophyte Phylogeny Group, or PPG, is an informal international group of systematic botanists who collaborate to establish a consensus on the classification of pteridophytes (lycophytes and ferns) that reflects knowledge about plant relation ...

classification of 2016 (PPG I) but not by some other sources, which sink it into a broadly defined ''

Trichomanes ''Trichomanes'' is a genus of ferns in the family Hymenophyllaceae, termed bristle ferns. The circumscription of the genus is disputed. All ferns in the genus are filmy ferns, with leaf tissue typically 2 cells thick. This thinness generally nec ...

''.

Taxonomy

The genus ''Abrodictyum'' was erected by Carl Presl in 1843. Its status, like other genera in the family Hymenophyllaceae, remains disputed. The

classification of 2016 (PPG I) accepts the genus, placing it in the subfamily

Trichomanoideae The Hymenophyllaceae, the filmy ferns and bristle ferns, are a family of two to nine genera (depending on classification system) and about 650 known species of ferns, with a subcosmopolitan distribution, but generally restricted to very damp pla ...

, and saying that there are about 25 species. , the ''Checklist of Ferns and Lycophytes of the World'' listed 41 species, whereas ''

Plants of the World Online Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by ...

'' sank the genus into ''

''.

Species

, the ''Checklist of Ferns and Lycophytes of the World'' accepted the following species: *'' Abrodictyum angustimarginatum'' (Bonap.) J.P.Roux *'' Abrodictyum asae-grayi'' (Bosch) Ebihara & K.Iwats. *'' Abrodictyum boninense'' Tagawa & K.Iwats. ex K.Iwats. *'' Abrodictyum brassii'' (Croxall) Ebihara & K.Iwats. *'' Abrodictyum caespifrons'' (C.Chr.) comb. ined. *'' Abrodictyum caudatum'' (Brack.) Ebihara & K.Iwats. *'' Abrodictyum cellulosum'' (Klotzsch) Ebihara & Dubuisson *'' Abrodictyum clathratum'' (Tagawa) Ebihara & K.Iwats. *'' Abrodictyum compactum'' (Alderw.) comb. ined. *'' Abrodictyum cumingii'' C. Presl *'' Abrodictyum cylindratum'' Dubuisson *'' Abrodictyum dentatum'' (Bosch) Ebihara & K.Iwats. *'' Abrodictyum elongatum'' (A.Cunn.) Ebihara & K.Iwats. *'' Abrodictyum extravagans'' (Copel.) comb. ined. *'' Abrodictyum flavofuscum'' (Bosch) Ebihara & K.Iwats. *'' Abrodictyum franceae'' Dubuisson et al. *'' Abrodictyum gemmatum'' (J. Sm. ex Baker) comb. ined. *'' Abrodictyum guineense'' (Afzel. ex Sw.) J.P.Roux *'' Abrodictyum idoneum'' (C.V.Morton) Ebihara & K.Iwats. *'' Abrodictyum kalimantanense'' (K.Iwats. & M.Kato) Ebihara & K.Iwats. *'' Abrodictyum laetum'' (Bosch) Ebihara & K.Iwats. *'' Abrodictyum meifolium'' (Bory ex Willd.) Ebihara & K.Iwats. *'' Abrodictyum muluense'' (K.Iwats.) comb. ined. *'' Abrodictyum obscurum'' (Blume) Ebihara & K.Iwats. *'' Abrodictyum pachyphlebium'' (C.Chr.) Bauret & Dubuisson *'' Abrodictyum pluma'' (Hook.) Ebihara & K.Iwats. *'' Abrodictyum polystromaticum'' (Bierh.) comb. ined. *'' Abrodictyum pseudoarbuscula'' (Alderw.) comb. ined. *'' Abrodictyum pseudorigidum'' Dubuisson et al. *'' Abrodictyum rigidum'' (Sw.) Ebihara & Dubuisson *'' Abrodictyum saxatile'' (T. Moore) Parris *'' Abrodictyum schlechteri'' (Brause) Ebihara & K.Iwats. *'' Abrodictyum schultzei'' (Brause) comb. ined. *'' Abrodictyum setaceum'' (Bosch) Ebihara & K.Iwats. *'' Abrodictyum setigerum'' (Backh.) Parris *'' Abrodictyum sprucei'' (Baker) Ebihara & Dubuisson *'' Abrodictyum strictum'' (Menzies ex Hook. & Grev.) Ebihara & K.Iwats. *'' Abrodictyum stylosum'' (Poir.) J.P.Roux *'' Abrodictyum tamarisciforme'' (Jacq.) Ebihara & Dubuisson *'' Abrodictyum truncatum'' (Copel.) comb. ined. *'' Abrodictyum windischianum'' (Lellinger) comb. ined.

References

Hymenophyllales Fern genera {{Polypodiidae-stub