Blechnum stoloniferum (Mett.) C.Chr.

  • Authority

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

  • Family

    Blechnaceae

  • Scientific Name

    Blechnum stoloniferum (Mett.) C.Chr.

  • Description

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    Species Description - Rhizome horizontal, compact and stolonifer-ous; rhizome scales 3-4 mm long, 0.8-1 mm wide, light brown, debate, entire; fronds dimorphic, clumped, fertile fronds taller than sterile; stipe 1.5-5 cm long, 1/10-1/3 the frond length, brown to purple, with sparse scales, grooved through rachis only, papillate; blade pinnatifid to pin-natisect, 8.5-11 cm long, 1-3 cm wide, coriaceous, linear, elliptic, apex pinnatifid, base gradually reduced to semicircular distant pinna lobes; rachis grooved, papillate; pinnae broadly adnate, oblong, obtuse somewhat falcate, glabrous abaxially and adaxially; margin entire, undulate, recurved; veins simple to once-forked, enlarged vein ending on upper surfacfertile pinnae (8-18 mm long, 0.8-1.5 mm wide) equal to sterile pinnae in length (10-18 mm long, 5-6 mm wide); indusia 0.8 mm wide, erose.

  • Discussion

    Lomaria stolonifera Mettenius ex Fournier, Mexic. pl. 1: 113. 1872. Struthiopteris stolonifera (Mettenius ex Fournier) Broadhurst, Bull. Torrey Bot. Club 39: 277. 1912. Type. Mexico. Veracruz: Orizaba, Müller 61.1491 (NY!; isotype K!, frag. B!). Lomaria ghiesbreghtii Baker in Hooker & Baker, Syn. fil. ed. 2, 481. 1874. Blechnum ghiesbreghtii (Baker) Christensen, Index filic. 154. 1905. Type. Mexico. Chiapas, Ghiesbreght 207 (K; isotypes NY!, PH). The small size, higher elevation and stolonif-erous nature of Blechnum stoloniferum distinguish it from the other members of sect. Lomaria in Oaxaca (B. divergens, B. l’herminieri and B. wardiae). See B. wardiae for possible hybrid origin involving B. stoloniferum.

  • Distribution

    Terrestrial in cloud forest, at high elevation; Ixtlán, Mixe, Teotitlán; 2000-2700 m. Mexico (Chih, Dgo, Hgo, Mex, Ver, Oax, Chis); Guat.

    Mexico North America| Guatemala Central America|