Cyclosorus interruptus

Thelypteridaceae

Cyclosorus interruptus (Willd.) H.Ito

Link to Australian Plant Name Index for publication details and synonyms: https://id.biodiversity.org.au/name/apni/116867

Rhizome long-creeping, slender, scaly at apex; scales ovate to narrowly ovate, hairy; hairs mostly marginal. Fronds 1-pinnate(-pinnatifid); pinnae lobed; basal pinnae not reduced; lower surfaces variously hairy, sometimes copiously so, sometimes glabrous; broad flat scales always present on lower surface of costae; rather large spherical red glands scattered on costules and veins; basal veins in adjacent pinna lobes always anastomosing to produce a long excurrent vein passing to the sinus membrane. Sori indusiate; indusium bearing copious acicular hairs and, occasionally, some spherical glands; body of sporangium lacking glands or hairs, but a spherical red gland terminates a hair on sporangium stalk. Spores finely and irregularly spinulose.

Widespread and scattered across tropical and subtropical Australia. Also widespread in the Palaeotropics.

Terrestrial, grows in and at the margins of freshwater swamps.