Cheilanthes feei T.Moore
Descripción
Rhizomes compact, ascending, 2–3 mm diam.; rhizome scales linear-lanceolate, some concolorous orange-brown, most bicolorous with blackish central stripe, 3–4 mm long, entire; fronds to 20 cm long, clumped; stipes 1⁄3–1⁄2 the frond length, dark brown to black, lustrous, terete, with lax to patent white to tan hairs, 1 mm long; blades narrowly oblong to lanceolate, bipinnate-pinnatifid to tripinnate, 1–3 cm wide; pinnae 3–10 pairs, equilateral, narrowly to broadly deltate; ultimate segments bead-like, largest 1–3 mm, round to slightly oblong; adaxial surfaces sparsely hirsute to glabrescent; abaxial surfaces densely villous; laminar margins curved but not differentiated, sori continuous around segment margins; sporangia 32-spored; spores brown; n=2n=90, apogamous (USA).A
Ejemplar revisado
Chih (Correll 22635, NY, 23314, UC, US; Correll & Gentry 22718, UC, US, 23222, US; Knobloch 229, US, 409, MSC, US; Worthington 14566, NY). Coah (McCulloch 63-71-MC, MSC; Palmer 432, NY, 734, US).
A
A
Elevación
1200 – 1400 mA
Ecología y Hábitat
Calcareous cliffs and ledges, usually on limestone or sandstone.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Cheilanthes feei is often confused with C. parryi, from which it is distinguished by having thinner, sparser pubescence and smaller, 1–3 mm, round, bead-like ultimate segments (vs. 3–5 mm, oblong segments) and tripinnate blade bases (vs. bipinnatepinnatifid). From C. lendigera, C. feei differs by the indusia being weakly differentiated (vs. strongly so) and generally having smaller fronds to 20 cm (vs. to 37 cm).A