Pellaea sagittata (Cav.) Link

  • Authority

    Mickel, John T. & Smith, Alan R. 2004. The pteridophytes of Mexico. Mem. New York Bot. Gard. 88: 1-1054.

  • Family

    Pteridaceae

  • Scientific Name

    Pellaea sagittata (Cav.) Link

  • Description

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    Species Description - 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).

  • Discussion

    Pteris sagittata Cav., Descr. Pl. 267. 1801. Allosorus sagittatus (Cav.) C. Presl, Suppl. Tent. Pterid. 153. 1836. Platyloma sagittata (Cav.) J. Sm., J. Bot. (Hooker) 4: 160. 1841. Type. Mexico. Cerro de Guadaloupe, Ne´e s.n. (MA).

    Unverified, Doubtful, or Mistaken Reports. Ags (Siqueiros 4148, HUAA, and eight other collections, cited by Siqueiros-Delgado & Gonza´lez-Adame, 2004, but not verified). Gro (Lorea 848, FCME, cited by Lorea-Herna´ndez & Vela´zquez M., 1998, but not verified). 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.