Phanerosorus sarmentosus

Phanerosorus sarmentosus is a member of the fern family Matoniaceae, a group of tropical and subtropical ferns. It is part of the genus Phanerosorus, which includes species characterized by distinct rhizome structures and specific leaf morphology. This species is found in the Borneo region, an area known for its rich biodiversity and diverse fern flora. The species was formally described in 1909 by Copel., building upon the initial work of Baker. Its classification and nomenclature reflect the taxonomic history of the genus and its placement within the Matoniaceae family.