Distinguished from other subgenera by the combination of seasonal leaves, long-creeping stems 1–3 mm diam., pinnate-pinnatifid blades, veins often forked and meeting margins above the sinuses, scales along the abaxial costae, and by the proximal pinnae not or only slightly shortened. x = 35.

Discussion

Thelypteris palustris and T. confluens (Thunberg) C. V. Morton from the Southern Hemisphere constitute the subgenus Thelypteris, according to R. E. Holttum (1971).

Selected References

None.

Lower Taxa

Thelypteris palustris