Greek kyrtos - curved; referring either to the curved veins that run together or the shape of the leaves in some species.
Terrestrial ferns. Rhizomes short, erect, covered with scales. Sterile and fertile fronds similar, tufted, divided once, scaly. Segments large, entire or toothed, sickle-shaped, long-pointed and leathery; veins netted. Sori round, away from the midrib, scattered or in several rows. Indusia round, attached by a stalk in the centre.
Cultivars have segments that are variously toothed and cut (care with key).
Recognition: Large segments; veins fusing together to form a network; sori attached in the middle.
Literature: Christensen (1930), Shing (1965).
c. 20 species, widespread.
Created by: Val Stajsic
Updated by: Val Stajsic, May 2018