Adiantum

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Perennial. Rhizome creeping or erect, covered with scales, bristles or woolly hairs. Fronds tufted or separated, usually small. Stipe stiff, polished dark red-brown or black, scaly at base, sometimes hairy above. Lamina 1–4-pinnate, thin, glabrous or very sparsely hairy (in Australian species); pinnae more or less fan-shaped, often asymmetric at base, membranous or coriaceaous; veins radiating outwards, repeatedly forked, free, without main vein. Sori oblong or reniform, marginal, covered by strongly recurved marginal lobes.

About 220 species world-wide; 9 in Australia, 5 in Victoria.

Among the most easily recognised leptosporangiate fern genera. All species share a unique character: sporangia borne on the reflexed leaf margin or "false indusium" (pseudoindusium) (Huiet et al 2018).

Source: Entwisle, T.J. (1994). Ferns and allied plants (Psilophyta, Lycopodiophyta, Polypodiophyta). In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2018-09-26
 
References

Huiet, L.; Li, F-W.; Kao, T-T.; Prado, J.; Smith, A.R.; Schuettpelz, E. & Pryer, K.M. (2018). A worldwide phylogeny of Adiantum (Pteridaceae) reveals remarkable convergent evolution in leaf blade architecture, Taxon 67(3): 488-502.

 
Hero image
life Life
kingdom Plantae
phylum Tracheophyta
order Polypodiales
family Pteridaceae
Higher taxa
genus Adiantum
Subordinate taxa