Cheilanthes brandegeei D.C.Eaton
Descripción
Rhizomes stout, compact, horizontal, 2–3 mm diam.; rhizome scales linear-lanceolate, concolorous orange-tan, 3–4 mm long, entire; fronds to 20 cm long, clumped; stipes ca. 1⁄3 the frond length, castaneous, lustrous, glabrous, terete; blades deltate or pentagonal, bipinnate-pinnatifid to tripinnate at base, 6–7 cm wide; pinnae 5–7 pairs, the proximal ones slightly inequilateral; segments ovate with rounded apices; adaxial surfaces with sparse hairs 0.2–0.3 mm long; abaxial surfaces with scattered 1-celled white hairs 0.3–0.5 mm long; texture thin; laminar margins curved, deeply lobed, weakly differentiated; spores brown.A
Ejemplar revisado
BCN (Montgomery 83-28, NY; Moran 23952, SD; Wiggins 7649, NY, P, 15080, ARIZ; Wiggins & Thomas 176, NY). BCS (Breedlove 62331, NY; Moran 18934, MICH, 19679, ARIZ, ASC, SD, TEX). Cedros Isl (Palmer 707, NY, P).A
Distribución
México (país) EndémicoA
Elevación
30 – 1250 mA
Ecología y Hábitat
Among (basaltic) rocks on shaded north slopes, and among trees and shrubs.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Cheilanthes brandegeei is one of the most distinct species of the genus with its broadly deltate blades, deeply lobed indusia, and scattered, long, white, 1-celled hairs. Molecular studies (Cranfill, unpublished data) suggest that this species might be more closely allied to Bommeria than to Cheilanthes.A