Trichomanes pyxidiferum L.

  • Authority

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

  • Family

    Hymenophyllaceae

  • Scientific Name

    Trichomanes pyxidiferum L.

  • Description

    Species Description - Rhizome slender, long-creeping, 0.5-0.8 mm diam.; rhizome hairs dense, black, 0.5 mm long; roots present; fronds 3-10 cm long, 1.5-5 cm wide, distant; stipe ca. 1/3 the frond length, blackish, with dense, 0.5 mm long, black hairs, up stipe along two margins, alate ¾ way to base or to base; blade bipinnate to tripinnate, not reduced at base, apex pinnatifid; rachis alate; pinnae 4-10 pairs, oblique, nearly glabrous with scattered to rare minute glandular hairs; ultimate segments linear, 0.8-1.0 mm wide, obtuse, margin entire, often drying with long narrow "folds" parallel to the veins; veins free, false veins lacking; sori immersed in blade tissue; involucre 1.5-2.0 mm long, 1.0 mm wide, mouth flaring, 1.3-1.5 mm wide, concolorous, not bilabiate.

  • Discussion

    Vandenboschia pyxidifera (Linnaeus) Copeland, Philipp. J. Sci. 67: 53. 1938. Type. Plumier, Traité foug. Amér., t. 50E. 1705, illustrating a plant from Haiti. Trichomanes cavifolium K. Müller, Bot. Zeitung (Berlin) 12: 753. 1854. Type. Mexico. Schiede s.n. (B?). Trichomanes pyxidiferum is similar to T. hymenophylloides but the ultimate segments are wider (0.8-1.0 mm), and the rhizome and stipe have dense black hairs; it is found at lower elevations (450-1400(-1700) m).

  • Distribution

    Epiphytic or terrestrial in wet montane forests; Cuicatlán, Ixtlán, Juquila, Teo-titlán, Tuxtepec, Villa Alta; 450-1400(-l700) m. Mexico (SLP, Ver, Oax, Chis); Guat to Pan; Cuba, Hisp; Col to Bol & Braz; Africa.

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