Notholaena neglecta Maxon

  • Authority

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

  • Family

    Pteridaceae

  • Scientific Name

    Notholaena neglecta Maxon

  • Description

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    Species Description - Rhizomes compact, horizontal, ca. 3 mm diam.; rhizome scales linear-lanceolate, bicolorous, 2.5–3.5 mm long, dark brown to black with brown margins, erose-denticulate, long-attenuate, apices twisted; fronds (5–)10–15(–25) cm long, clumped; stipes 1/2– 2/3 the frond length, atropurpureous to black, terete, with a few scales at base like those of rhizomes; rachises similar but shallowly grooved; blades 3-pinnate to 3-pinnate-pinnatifid (to 4-pinnate at base), elongate-pentagonal, 2–6.5 cm wide, herbaceous to subcoriaceous; ultimate segments constricted at bases, narrowly adnate to petiolulate; pinnae 4–8 pairs, with basal pair exaggerated basiscopically; adaxial surfaces sparsely pale yellow-farinose; abaxial surfaces densely pale yellow-farinose; laminar margins strongly curved (covering half of lower surface); spores tan or black; 2n=60 (NL, USA), n =2n = 90 (USA).

  • Discussion

    Cheilanthes neglecta (Maxon) Mickel, Phytologia 41: 435. 1979. Chrysochosma neglecta (Maxon) Pic. Serm., Webbia 43: 308. 1989. Type. Mexico. Coahuila: vicinity of Saltillo, Palmer 324 (US!, photos GH, MICH; isotypes BM, GH,! MO, NY!).

    Notholaena neglecta resembles small specimens of N. candida, but the blades are more dissected and pentagonal and have revolute margins.

  • Distribution

    Rocky slopes and cliffs, apparently confined to limestone; 750–2150 m. USA (Ariz, Tex); Mexico.

    Arizona United States of America North America| Texas United States of America North America| México Mexico North America|