Pellaea sagittata (Cav.) Link
Descripción
Rhizomes short, stout, compact; rhizome scales 3–4 X 0.5–0.8 mm, straight, light brown, concolorous, dull, linear-lanceolate to lanceolate, irregularly denticulate; fronds to 80 cm long, erect; stipes 1⁄4–1⁄2 the frond length, nearly terete to plane on adaxially, stramineous, with narrow orange scales toward the base, otherwise glabrous or rarely sparsely puberulous, rachises straight; blades narrowly oblong to deltate, 1–2-pinnate, light green, yellow-green to gray-green; pinnae widely spreading to slightly ascending, entire to pinnate, segments short-stalked, 20–28 X 8–14 mm at base, narrowly deltate to sagittate, entire, cordate at bases, apices acute, subcoriaceous, glabrous to sparsely pubescent at pinna bases with scattered hairs and scales, terminal pinnule of each pinnae with strongly inequilateral base (1–1.5 mm difference); margins recurved, glabrous, with whitened cells on recurved portion, indusia well differentiated, 0.3–0.5 mm wide, papillate; spores brown; n=2n=87, apogamous (Mich).A
Forma de vida
TerrestreA
Ejemplar revisado
Chih (Knobloch 5940, US). Chis (Ghiesbreght 303, GH). DF (Pringle 10152, NY). Dgo (Mendoza R. 156, UAMIZ). Gto (Díaz B. & Zamudio 3482, IEB). Hgo (Mexia 2760, UC). Jal (McVaugh 12974, MICH). Méx (Bourgeau 1163, GH). Mich (Feddema 215, MICH). Mor (Hitchcock & Stanford 7089, UC). Oax (Pringle 4887, NY). Pue (Purpus 2712a, NY). Qro (Basile 3, NY). SLP (Schaffner 959, GH). Tlax (Clausen s.n., 23 Aug 1955, MEXU). Zac (Correa 173, MICH).
Unverified, Doubtful, or Mistaken Reports. Ags (Siqueiros 4148, HUAA, and eight other collections, cited by Siqueiros-Delgado & González-Adame, 2004, but not verified). Gro (Lorea 848, FCME, cited by Lorea-Hernández & Velázquez M., 1998, but not verified).A
Unverified, Doubtful, or Mistaken Reports. Ags (Siqueiros 4148, HUAA, and eight other collections, cited by Siqueiros-Delgado & González-Adame, 2004, but not verified). Gro (Lorea 848, FCME, cited by Lorea-Hernández & Velázquez M., 1998, but not verified).A
Elevación
1350 – 3050 mA
Ecología y Hábitat
Rocky slopes.A
Tipo de vegetación
Bosque de pino-encinoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Pellaea sagittata is distinguished from P. cordifolia by the ovate-deltate to sagittate (vs. nearly round) segments. The specimen cited from Durango has extraordinarily large segments 25–35 X 12–23 mm.A