Cheilanthes cuneata Link
Descripción
Rhizomes compact, horizontal, 2–3 mm diam.; rhizome scales linear-lanceolate, 2–2.5 mm long, concolorous, brown to black, lustrous, entire; fronds 18–34 cm long, clumped; stipes 1⁄3–2⁄3 the frond length, castaneous, lustrous, grooved, glabrous; blades 8–18 X 4–8 cm (length:width ratio 2–4:1), bipinnate-pinnatifid to tripinnate, lanceolate, proximal pinnae slightly reduced; pinna pairs 10–20 (distal 2–4 pairs entire, median 6–14 pairs pinnate), proximal 0–5 pairs bipinnate), terminal segments ovate, 0.5–1.5 cm X 2–4 mm (length:width ratio 2.5–7:1); proximal pinnae bipinnate, slightly exaggerated basiscopically, 3.2–6.5 X 1.6–3 cm (length:width ratio 1.7–2.5:1), 5–10 pinnule pairs (distal 3–4 pairs entire, proximal 2–6 pairs pinnate; basal basiscopic pinnules 1–1.7 cm long, 1–3 lobed, terminal segment 2–3 mm wide; adaxial and abaxial surfaces glabrous, the veins prominent abaxially; laminar margins recurved, modified into 0.5–0.8 mm wide false indusia, suberose, surfaces and margins with white papillae; spores black; 2n=180 (Oax).A
Forma de vida
Rupícola, TerrestreB
Ejemplar revisado
Chis (Breedlove 22683, DS). Gro (Lorea 3240, FCME). Jal (McVaugh 24347, MICH). Méx (Huerta G. 16, IEB). Mich (Escobedo 1838, IEB). Mor (Lyonnet 864, UC). Oax (Mickel 4881, NY). Pue (Tlapa & Ubierna 1117, IEB).
Unverified, Doubtful, or Mistaken Reports. Ver (Zolá 851, MEXU, XAL, cited by Palacios-Rios, 1992, but not verified).
A
Unverified, Doubtful, or Mistaken Reports. Ver (Zolá 851, MEXU, XAL, cited by Palacios-Rios, 1992, but not verified).
A
Distribución
México (país) EndémicoA
Elevación
1050 – 2800 mA
Ecología y Hábitat
Shaded, often rocky slopes.A
Tipo de vegetación
Bosque de pino-encinoB
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Discusión taxonómica
Cheilanthes cuneata is part of the C. angustifolia complex (including also C. chaerophylla and C. decomposita). See discussion of the complex under C. angustifolia.A