Alansmia

  • Authority

    Moguel Velázquez, Ana L. & Kessler, Michael. 2013. Grammitid ferns (Polypodiaceae). III. . Fl. Neotrop. Monogr. 113: 1--68. (Published by NYBG Press)

  • Family

    Polypodiaceae

  • Scientific Name

    Alansmia

  • Type

    Type. Polypodium lanigerum Desv., Ges. Naturf. Freunde Berlin Mag. Neueste Entdeck. Gesamte Naturk. 5: 316. 1811. Alansmia lanigera (Desv.) Moguel & M. Kessler.

  • Synonyms

    Polypodium lanigerum Desv., Alansmia lanigera (Desv.) Moguel & M.Kessler

  • Description

    Genus Description - Plants epiphytic, sometimes epipetric or terrestrial; rhizomes short creeping to suberect, radially symmetric, usually scaly, rarely lacking scales, the scales linear-lanceolate to lanceolate, basifix, nonclathrate, concolorous, dull to shiny, yellow, orange, castaneous, or black, with variously colored setae (hyaline to atropurpureous) and/or hyaline to orange hairs on the margins and sometimes surfaces; fronds pendent, of indeterminate growth, not articulated to rhizome; petioles usually short to very short (<1 cm long), setose and puberulent, the setae simple, spreading, 0.5-3.5 mm long, hyaline to castaneous, the hairs 0.1-0.2 (-0.3) mm long, turgid or globose, branched or unbranched; blades proximally gradually reduced, lacking black, clavate, fungal, fruiting bodies, pinnatisect to 1-pinnate, rarely 1-pinnate-pinnatifid, forked in 2 species, monomorphic, setose and puberulent, the setae stramineous, hyaline, yellow, orange, castaneous, red, deep red, or atropurpureous, simple, paired, irregularly branched or stellate on pinnae surfaces, pinnae margins, and rachises, or rarely on the abaxial surfaces of the rachises also growing out of the transverse walls of up to 1.5 mm long, axes catenate, the hairs simple or branched, hyaline to orange or rarely white-sericeous, turgid to globose, sometimes eglandular; veins free, 1-furcate; hydathodes present, sometimes producing calcareous secretions (white lime dots); sori round, not sunken into the blade tissue, without paraphyses; sporangia ciliate or rarely glabrous; spores tetrahedral-globose to ellipsoid or reniform, with apparently monolete or trilete laesures; n = 37 (Evans, 1963).