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Notholaena aureolina is found in generally disturbed sites, such as earthen roadsides or riverbanks, in southern Mexico and northern Central America. Long known as Cheilanthes aurea, it has only recently been shown to be embedded within Notholaena (Rothfels et al., 2008) and given a name there (Yatskievych and Arbeláez, 2008). It differs from members of core Notholaena mostly in the presence of a well-developed lip-like false indusium (very similar to that seen on many Cheilanthes species). However, like most members of the notholaenids (and unlike members of Cheilanthes), it has farina on its gametophytes as well as its sporophytes (Rothfels et al., 2008). Limited cytogenetic work to date indicates that this species is a sexual diploid (Windham and Yatskievych, 2003).