Distinguished from other subgenera by the combination of evergreen leaves, usually long to short-creeping stems more than 5 mm diam., pinnate-pinnatifid blades with proximal pinnae usually not shortened (except Thelypteris hispidula and T. dentata), and some veins meeting margin at or below the sinuses. x = 36.

Discussion

Species 7–12 were monographed by A. R. Smith (1971), who treated them in Thelypteris sect. Cyclosorus. These same species were placed in Christella sect. Pelazoneuron by R. E. Holttum (1982, p. 553), who restricted use of Cyclosorus to Thelypteris interrupta (species 15 here) and two other species.

Selected References

None.

Lower Taxa

Thelypteris augescens, Thelypteris dentata, Thelypteris grandis, Thelypteris hispidula, Thelypteris interrupta, Thelypteris kunthii, Thelypteris ovata, Thelypteris patens, Thelypteris puberula