Athyrium skinneri (Baker) C.Chr.

  • Authority

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

  • Family

    Athyriaceae

  • Scientific Name

    Athyrium skinneri (Baker) C.Chr.

  • Description

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    Species Description - Rhizomes creeping, with apices protruding 2–4 cm beyond stipe bases, sparsely scaly; rhizome scales 3–4 x 0.3–0.5 mm, light brown to brown, linear-lanceolate to narrowly deltate, slightly twisted; fronds distant; stipes 9–22 cm long, 1/3–1/2 the frond length, pink to rarely stramineous, glabrous except for scattered scales (similar to rhizome scales) at bases, broadly grooved to somewhat flattened; rachises pink and flexuous, broadly grooved, very narrowly winged; blades pinnate-pinnatifid, 12–20 x 6–15 cm, ovate-lanceolate, free pinnae 4–10 pairs, stalked, apices pinnatifid, largest pinnae 3.5–9 x 1.5–2.5 cm, laminae membranaceous, abaxially glabrous or with rare hair-like scales on costae and pinna bases, adaxially glabrous with papillae 0.1 mm in pinna axils; pinna margins serrate, wings along adaxial costae and segment midribs absent or minute, not conspicuous and not continuous; sori mostly linear to hamate, some diplazioid or round; indusia deeply laciniate, 0.5–1(–2) x 0.5–0.8 mm, coarsely dentate.

  • Discussion

    Asplenium skinneri Baker in Hooker & Baker, Syn. Fil. 226. 1867. Type. Guatemala. Skinner s.n. (K!, frag. NY!, UC! photo ex K).

    See A. palmense and A. tejeroi for comparison and discussion.

  • Distribution

    Terrestrial in moist woods on Pacific side, mostly low elevations, tropical subdeciduous forests; 100-850(-1050) m. Mexico; Guat, Salv, Nic, CR, Pan; Col, Ec.

    Mexico North America| Amazonas Ecuador South America| Colombia South America| Panama Central America| Costa Rica South America| Nicaragua Central America| El Salvador Central America| Guatemala Central America|