Notholaena lemmonii D.C. Eaton
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Authority
Mickel, John T. & Smith, Alan R. 2004. The pteridophytes of Mexico. Mem. New York Bot. Gard. 88: 1-1054.
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Family
Pteridaceae
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Scientific Name
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Description
Species Description - Rhizomes compact, horizontal, 1.5–2.5 mm diam.; rhizome scales linear-lanceolate, bicolorous, dark brown to black with very narrow tan margins, weakly ciliolate, lustrous, apices flexuous, hair-like; fronds 16–35 cm long, clumped; stipes ca. 1/3 the frond length, shallowly grooved, lustrous, reddish brown to black, with a few cordate lance-ovate scales proximally; blades linear to narrowly oblong, 1.3–5 cm wide; rachises grooved, pinnate-pinnatifid to bipinnate, subcoriaceous; pinnae 10–17 pairs, deltate to lanceolate, short-stalked (1 mm), proximal ones somewhat reduced; segments linear to oblong, broadly adnate; adaxial surfaces glabrous; abaxial surfaces densely white- to pale yellow-farinose; laminar margins curved; sporangia 64-spored; spores tan to dark brown. 2n =60 (USA).
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Discussion
Cheilanthes lemmonii (D. C. Eaton) Domin, Biblioth. Bot. 20(85): 133. 1913. Chrysochosma lemmonii (D. C. Eaton) Pic. Serm., Webbia 43: 308. 1989. Type. U.S.A. Arizona: Sta. Catarina Mts, near Ft. Lowell and Tucson, 8 Apr 1880, Lemmon s.n. (YU!; isotypes GH!-3 sheets, NY!).
Notholaenea lemmonii is distinct from N. grayi by its lack of scales on the fronds. It is similar to Notholaena meridionalis except that it has grooved stipes and rachises.
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Distribution
Epipetric on rocky slopes in tropical deciduous forests; 75–1450 m. Mexico.
Mexico North America|