Marsileaceae
Australian Tropical Ferns and Lycophytes - Online edition
Marsilea costulifera
Marsilea costulifera D.L.Jones
Link to Australian Plant Name Index for publication details and synonyms: https://id.biodiversity.org.au/name/apni/119036
Nardoo
Rhizome much-branched, glabrous except at the tips. Fronds 1–12 cm long, clustered. Stipes glabrous or scaly. Leaflets narrowly oblanceolate to cuneate, 1–12 mm long, 1–5 mm wide, arranged unequally with 2 leaflets spreading and 2 ±porrect, glabrous or scaly; outer margin entire, flat to rounded. Sporocarps in clusters; stalks 1–2 mm long, unbranched, glabrous; conceptacles 2.5–3 mm long, scaly, distinctly ribbed; upper surface concave; upper basal tooth prominent; lower basal tooth absent; apex of the stalk forming a less prominent, tooth-like protuberance.
Endemic. Widespread but uncommon across coastal and inland tropical Australia.
Aquatic or terrestrial in seasonally wet areas.
Field AR, Quinn CJ, Zich FA (2022) Australian Tropical Ferns and Lycophytes. apps.lucidcentral.org/fern/text/intro/index.htm (accessed online INSERT DATE).
Field AR, Quinn CJ, Zich FA (2022) ‘Platycerium superbum’, in Australian Tropical Ferns and Lycophytes. apps.lucidcentral.org/fern/text/entities/platycerium_superbum.htm (accessed online INSERT DATE).