Osmunda family

Rhizomes short, often trunk-like and erect, without scales. Sterile and fertile fronds similar or different. Fronds in several terminal crowns, oblong to ovate in outline, divided several times; veins free. Stalks with two leaf-like outgrowths at the base. Sporangia large, almost spherical, without indusia and not arranged into sori.

3 genera and c. 20 species, cosmopolitan (Australia 2 species).

Sporangia not arranged into sori but scattered on the undersurface of fronds, sometimes in spike-like heads.

Hewitson (1962).

Source: Spencer, R. (1995). Osmundaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 1, Ferns, conifers & their allies. The identification of garden and cultivated plants. University of New South Wales Press.

Hero image
kingdom Plantae
phylum   Tracheophyta
class    Polypodiopsida
order     Osmundales
Higher taxa
Subordinate taxa
genus       Osmunda L.
genus       Todea Willd.