Pleopeltis crassinervata (Fée) T.Moore

  • Authority

    Mickel, John T. & Beitel, Joseph M. 1988. Pteridophyte Flora of Oaxaca, Mexico. Mem. New York Bot. Gard. 46: 1-580.

  • Family

    Polypodiaceae

  • Scientific Name

    Pleopeltis crassinervata (Fée) T.Moore

  • Description

    Species Description - Rhizome creeping, 1-1.5 mm diam.; rhizome scales dimorphic, along rhizome 1-1.5 mm long, ovate-lanceolate, black, margin generally broad, pale, denticulate, rarely comose, at base of stipe 1.5-2 mm long, lanceolate, generally concolorous with only dark center spot, denticulate; fronds monomorphic; stipe 1/10-1/3 the frond length, terete; blade simple, linear-elliptic, (8-) 10-30 cm long, 7-10(-20) mm broad, thin; veins evident, dark, prominent, dark at base near the costa; abaxial scales sparse, round, 0.5 mm diam., brown-centered, margin pale brown to whitish, fimbriate; sori oblong, soral scales peltate, 0.5-0.8 mm broad, center brown-black, margin pale brown, fimbriate.

  • Discussion

    Drynaria crassinervata Fée, Mém. foug. 8: 97. 1857. Polypodium crassinervatum (Fée) Kiaerskou, Beretn. Bot. Haves Virks. 1871-1873:49. 1874. Polypodium lanceolatum Linnaeus var. crassinervatum (Fée) Weatherby, Contr. Gray Herb. 65:8. 1922. Syntypes. Mexico. Veracruz: “Vallée d’Orizaba,” Schaffner 173, 489, Córdoba, Schaffner 174a (P?). Pleopeltis crassinervata is aptly named for its distinctive, conspicuous, dark veins near the costa in the proximal half of the blade.

  • Distribution

    Epiphytic in wet montane forests; Cuicatlán, Ixtlán, Teotitlán, Villa Alta; (450-)850-1900 m. Mexico (Chih, Dgo, Sin, Mex, Mor, SLP, Tam, Hgo, Ver, Pue, Oax, Chis); Guat.

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