Cheilanthes mickelii T.Reeves
Descripción
Rhizomes short-creeping, compact, horizontal, ca. 1.5 mm diam.; rhizome scales linear, ca. 3 mm long, bicolorous with dark brown to black, sclerotic, lustrous streak, orange-tan margins, and hair-tips; fronds to 22 cm long, approximate; stipes ca. 1⁄3 the frond length, atropurpureous to dark-castaneous, lustrous, terete, clothed with long, jointed, tan hairs 3 mm long and sparse tan linear scales (to 4 cells wide); blades lanceolate or oblong, 2–3-pinnate, proximal pinnae slightly reduced; adaxial surfaces with sparse, tan hairs; abaxial surfaces with scattered long, tan, curled hairs 1 mm long, laminae visible; laminar margins curved, somewhat modified, 0.3 mm wide; spores tan.A
Ejemplar revisado
Chis (Breedlove 30592, 36744, DS). Oax (Mickel 5194, 6068, NY; Salas M. 1848, NY). Ver (Palacios Rios 3435, XAL).
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Distribución
México (país) EndémicoA
Elevación
50 – 900 mA
Ecología y Hábitat
Dry, rocky slopes and stream banks in light shade.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Cheilanthes mickelii is related to C. notholaenoides and C. cucullans, differing in the generally smaller size, short-creeping rhizomes, the presence of adaxial hairs, and longer abaxial hairs (ca. 1 mm). In addition, it differs from small specimens of C. notholaenoides in being chartaceous rather than coriaceous. The cited Chiapas collections were treated by Smith (1981) as Notholaena cinnamomea Baker, incorrectly.A