Cheilanthes alabamensis (Buckley) Kunze
Descripción
Rhizomes compact to short-creeping, horizontal, 1–2 mm diam.; rhizome scales linear, concolorous orange-brown, slender, 2–3.5 mm long, entire; fronds 13–30 cm long, approximate; stipes black, lustrous, terete, glabrate, short-pubescent adaxially on distal stipes and rachises with scattered, twisted, catenate hairs 0.5–0.8 mm; blades lanceolate, bipinnate to 2-pinnate-pinnatifid, coriaceous; segments lanceolate, auriculate, acute to acuminate at apices; adaxial surfaces glabrous except for rare 0.1(–0.3) mm long white hairs; abaxial surfaces glabrous or with rare white hairs 0.1–0.3 mm long; sori at vein ends, laminar margins curved, only slightly modified into 0.3 mm wide false indusia; sporangia 32-spored; spores tan; 2n=58 (NL).A
Forma de vida
Rupícola.B
Ejemplar revisado
Chih (Pringle 449, NY). Coah (Wynd & Mueller 377, NY). Gto (Rzedowski 40582, IEB). NL (Pringle 1989, NY). Oax (Camp 2232, NY). Pue (Purpus 4097, UC). Qro (Zamudio 6101, IEB). SLP (Palmer 268, NY). Son (Van Devender s.n., 6 Feb 1978, UC). Tam (von Rozynski 285, NY p.p.).A
Elevación
450 – 2400 mA
Ecología y Hábitat
Limestone outcrops.A
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Discusión taxonómica
Cheilanthes alabamensis can be distinguished from the closely related C. microphylla (q.v.) by its lanceolate segments glabrous on both sides or with only rare 0.1 mm white hairs abaxially, vs. oblong segments with scattered hairs 0.1–0.5 mm on both sides in C. microphylla.A