Grammitis

Grammitis and some 3–15 segregate genera (about 700 species) with green trilete spores and often characteristic dark hairs formerly classified in Grammitidaceae are now considered a specialized subgroup of Polypodiaceae. Family Tectariaceae Plants in soil or on rocks; rhizomes mostly short-creeping or ascending, scaly; leaves…

, Osmunda and its relatives, Grammitis and its relatives, Hymenophyllum, Trichomanes, Matteuccia, and Equisetum) possess thin-walled spores. In practically all known examples, such thin-walled spores are also green-pigmented, being provided with chloroplasts. Such spores are common among rainforest genera; they are often short-lived and require a short time for germination.…

The dwarf polypodies (Grammitis and its relatives from the former family Grammitidaceae, about 750 species) were included in Polypodiaceae following new DNA evidence.