Sori occur near the midvein of fertile pinnules and lack indusia. Submerged leaves bearing sori that are surrounded by basifixed membranous indusia (sporocarps). True indusia are absent, although reduced scales may encircle the sori. The sori are covered in hairy, whitish, cup-shaped indusia. The sori are covered by inconspicuous thin, white indusia with untoothed edges. The underside of each leaflet has sori beneath brown or black indusia. The sori are covered by thin, pale tan indusia, with entire edges. The sori are covered by opaque indusia with untoothed edges. The sori are mostly reniform in shape and have indusia, except for the "Phegopteris" group. Sori are close to fertile pinnule midveins and covered by thin indusia. They are protected by red-brown, globose indusia. The sori (spore-bearing structures) are rounded, with or without indusia (covers). The sori lack true indusia, the base of the sorus bears a ring of scales. They are protected by conical, bivalvate, or tubular indusia. They are covered by firm, brown indusia that are cup-like in appearance.