Cheilanthes viscida Davenp.
Descripción
Rhizomes compact, ascending, 2–3 mm diam.; rhizome scales linear, concolorous reddish orange, dull or slightly viscid, flexuous, ca. 3 mm long, entire; fronds to 20 cm long, clumped; stipes 1⁄3–1⁄2 the frond length, dark reddish brown to atropurpureous, lustrous, shallowly grooved, with short, erect, glandular hairs ca. 0.1 mm long; blades narrowly oblong, bipinnatepinnatifid to tripinnate; pinnae 5–9 pairs, deltate; adaxial surfaces viscid, occasionally sessile glands visible, often with soil particles adhering; abaxial surfaces viscid with short glandular hairs 0.1 mm; sori on segment lobes, laminar margins curved, but not differentiated; sporangia 64-spored; spores brown.A
Ejemplar revisado
BCN (Wiggins 13044, DS).A
Elevación
750 mA
Ecología y Hábitat
Cliffs and rocky slopes, usually on igneous substrates.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Cheilanthes viscida is distinct in its glandular hairs, viscid laminar surfaces, and oblong blade shape. In its glandular hairs it most closely resembles C. kaulfussii, which is widespread in Mexico and has broadly pentagonal blades and mostly erect glandular hairs (rather than narrowly oblong blades and mostly sessile glands).A