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Lorinseria
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 or dwarf 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), on the basis of its anastamosing veins and lobed frond form, as well as its more marked frond dimorphism. However, the genus name Lorinseria appears to be a later homonym of Lorinsera Opiz, and will need to be replaced or conserved.
The sterile fronds are 40–60 cm long, and the fertile fronds 50–70 cm long.
This species is native to the eastern United States, with a range spanning from Texas to Florida in the southeast and north to Massachusetts. A disjunct population also exists in southwestern Nova Scotia in Canada. It favors moist, sandy, acid soils, and has appeared in areas in the interior of the US around acid mine seeps, thus being one of the few species to benefit from acid mine drainage.
Text excerpted from the Wikipedia article Lorinseria by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
