Scales few, very narrow, usually present on costae abaxially; blades minutely pubescent or glabrous adaxially.

Riverbanks and moist canyons; 0--100 m; Tex.; Mexico; West Indies in Jamaica; Central America in Belize, Guatemala.

Common Name: Lindheimer's marsh fern

Ethnobotany: Unknown

Etymology: Thelypteris is from Greek thelys for female and pteris for fern, while ovata refers to the ovate leaf shape, while lindheimeri is named for Ferdinand Jakob Lindheimer (1801-1879) a German naturalist who worked extensively in Texas as a botanical collector.

Synonyms: Drypoteris augescens var. lindhiemeri, Thelyoteris lindheimeri