It has been collected in a number of locations in western Ecuador and in the Galápagos Islands, and in the nearby Tumbes Province of Peru.
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was described as occurring in Guayas Province, near Guayaquil, and in Mexico, but the latter reference is now held to be an error.
Adiantum | ''A. adiantum-nigrum'' | Adiantum jordanii | Adiantum aleuticum | Adiantum aethiopicum |