Cheilanthes maxoniana Mickel
Descripción
A C. longipila frondibus longioribus angusti-oblongis et pilis laminarum longioribus differt. (Dedicated to William Maxon, who first suggested the distinctness of this specimen.)
Rhizomes unknown; rhizome scales, judging from stipe bases, linear-lanceolate, orange-tan; fronds 28–40 cm long; stipes 2⁄5–1⁄2 the frond length, atropurpureous, terete, with abundant, patent, orange-tan, gland-tipped hairs 0.1–0.3 and some 1–1.5 mm long; blades narrowly oblong, bipinnate-pinnatifid to tripinnate; pinnae mostly subopposite, subequilateral; segments broadly adnate; both surfaces with scattered straight, orange-tan, spreading hairs 2 mm long, apparently not glandular; sporangia at vein tips, generally 1–3 sporangia covered by segment lobe, lacking differentiated false indusia; spores dark brown.
A
Rhizomes unknown; rhizome scales, judging from stipe bases, linear-lanceolate, orange-tan; fronds 28–40 cm long; stipes 2⁄5–1⁄2 the frond length, atropurpureous, terete, with abundant, patent, orange-tan, gland-tipped hairs 0.1–0.3 and some 1–1.5 mm long; blades narrowly oblong, bipinnate-pinnatifid to tripinnate; pinnae mostly subopposite, subequilateral; segments broadly adnate; both surfaces with scattered straight, orange-tan, spreading hairs 2 mm long, apparently not glandular; sporangia at vein tips, generally 1–3 sporangia covered by segment lobe, lacking differentiated false indusia; spores dark brown.
A
Ejemplar revisado
Known only from the type, Tam (Viereck 76, US).A
Distribución
México (país) EndémicoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Cheilanthes maxoniana is very close to C. longipila but is distinct in the narrowly oblong blades (vs. broadly oblong to narrowly deltate), hair length 2 mm (vs. 1 mm), and hair density scattered (vs. dense).A