Lorinseria is a genus of fern in the subfamily Woodwardioideae of the family Blechnaceae.

Its only species is Lorinseria areolata (synonym Woodwardia areolata), the netted chain fern, native to eastern North America.

The monotypic genus Lorinseria has been separated from Woodwardia in the Pteridophyte Phylogeny Group classification of 2016 (PPG I),[2] on the basis of its anastamosing veins and lobed frond form, as well as its more marked frond dimorphism.

This species is native to the southeast United States, but ranges all the way up the East Coast of the United States and Canada to southern Nova Scotia.

[citation needed] Habitat loss and degradation harm the netted chain fern.