Notholaena R.Br.
Descripción
Rhizomes compact to short-creeping, scaly; roots wiry; fronds monomorphic, small to rarely mediumsized, clumped; blades 1-pinnate-pinnatifid to 3-pinnate, generally farinose abaxially (the farina being a white to yellow waxy substance produced by short capitate glandular hairs), occasionally also bearing hairs and/or scales; veins free; sori at vein ends, forming marginal bands, exindusiate; blade margin only slightly curved, undifferentiated (somewhat curved and thin in N. rosei); spores tetrahedral-globose; gametophytes glandular-farinose; x=30.A
Forma de vida
Rupícola, TerrestreA
Distribución
México (país) Nativo y no endémicoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Of the approximately 30 species in the genus, 24 occur in Mexico, on or among rocks, usually in warm, seasonally dry regions. Notholaena has been treated in various ways in the past, most notably to include what we now treat as Argyrochosma (R. Tryon, 1956; Windham, 1986), or included within Cheilanthes (Mickel & Beitel, 1988; Mickel, 1991). Molecular data (Gastony & Rollo, 1995) suggest Notholaena is monophyletic with Cheiloplecton closely related. Cheilanthes aurea and C. aurantiaca may belong in Notholaena.A