Trichomanes tuerckheimii Christ

  • Authority

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

  • Family

    Hymenophyllaceae

  • Scientific Name

    Trichomanes tuerckheimii Christ

  • Description

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    Species Description - Rhizomes slender, 0.8–1 mm diam., long-creeping, green; rhizome hairs on lower side dark brown, 0.5–1 mm long; roots absent; fronds 6.5–20 cm long, distant; stipes virtually absent, 1–2 x 0.8–1 mm, with dense hairs abaxially like those of rhizomes; blades pinnatifid, 4–11 cm wide, with pinnatifid terminal pinnae, not reduced proximally, ovate to lanceolate; pinnae 10–20 pairs, glabrous except for dense hairs similar to those of stipes on abaxial surfaces of rachises, veins, and often along blade margins affixing the fronds to the substrate, margins entire; veins free, not reaching margins, with small, unconnected false veins parallel to true veins; involucres stalked, free from blade tissue; 2– 2.2 mm long, 0.5–0.8 mm wide at mouths, mouths round, concolorous.

  • Discussion

    Lectotype (chosen by Stolze, 1989: 90). Guatemala. Alta Verapaz: Cubilquitz, Tu¨rckheim 8348 (P!; isolectotypes GH!, K!, photo US!, P!).

    The peculiar habit of the leaves adhering to the bark surface by trichomes on veins and margins is unique among Mexican species of Trichomanes

  • Distribution

    Epiphytic in wet forests at low elevations; 50– 500 m in Guat. Mexico; Guat, Bel, Hond, Nic, CR, Pan; Col, Ven, Guy, Sur, Fr Gui, Ec, Peru.

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