Hymenophyllum tunbrigense (L.) Sm.

  • 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

    Hymenophyllum tunbrigense (L.) Sm.

  • Description

    Species Description - Rhizome creeping, 0.2-0.3 mm diam.; rhizome hairs 0.3-0.5 mm long, concentrated at base of frond; fronds arching or erect, 4.0-12.0 cm long; stipe 1/3 the frond length, 0.3 mm diam., very narrowly alate at top, glabrous except for occasional short hairs; blade pinnate-bipinnati-fid, ovate-lanceolate, 1.2-2.5 cm wide, lower pinnae not much reduced; rachis barely alate; segments 0.7-1.0 mm wide, glabrous; margin remotely or distantly serrulate; involucres not immersed, turned nearly at right angles to plane of the blade, margin entire to denticulate, 2.0-2.3 mm long, 1.0-1.3 mm wide, receptacles not exserted.

  • Discussion

    Trichomanes tunbrigense Linnaeus, Sp. pl. 2: 1098. 1753. Type. Uncertain, LINN 1253.4 and 1253.5 are this species. Hymenophyllum fucoides var. frigidum Liebmann, Mexic. bregn. 291 (seors. 139). 1849. Type. Mexico. Oaxaca: “Cerro de Sempoaltepec,” Liebmann [Pl. Mex. 2152, Fl. Mex. 554] (C!). Hymenophyllum tunbrigense is related to H. fucoides and H. ectocarpon, but differs in narrower (0.7-1.0 mm wide) segments, smaller size, glabrous blade, and subentire indusial segments.

  • Distribution

    Epiphytic or epipetric (or on soil) in cloud forests or montane rain forests; Centro, Ixtlán, Mixe, Teotitlán, Tlacolula; 1850-2750 m. Mexico (Chih, Oax, Chis); US (SC); Guat, CR; Jam; Ven, Chile; w Eur, Africa, Austr, NZ.

    Mexico North America| New Zealand Australia Oceania| Africa| Europe| Chile South America| Venezuela South America| Jamaica South America| Costa Rica South America| Guatemala Central America| South Carolina United States of America North America|