Pellaea mucronata D.C.Eaton
Descripción
Rhizomes compact, ascending, 5–10 mm diam.; rhizome scales linear-subulate, 0.1–0.3 mm wide at bases, bicolorous, black, with brown, erose-dentate margins; fronds to 45 cm long, clumped; stipes 1⁄2–2⁄3 the frond length, dark brown, red brown, or purplish black, lustrous, glabrous, adaxially flattened to shallowly grooved; blades ovate-deltate to ovate-lanceolate, (2–) 3-pinnate, 4–11(–18) cm wide, glabrous; pinnae perpendicular to rachises; ultimate segments narrowly oblong, often folded lengthwise in half, pinnules divided into 3’s, segments 2–12 mm long, bases rounded, apices mucronate, coriaceous, glabrous, margins recurved on fertile segments, covering more than half the abaxial surface; adaxial and abaxial surfaces glabrous; sori marginal; sporangia 64-spored, mixed with farina; 2n=58 (USA).A
Forma de vida
TerrestreA
Ejemplar revisado
BCN (Carter 1046, MEXU; Franklin & Chandler 5688, NY; Montgomery 83-36, NY; Taylor & Taylor 15606, NY; Wiggins 9821, US; Wiggins & Gillespie 4151, GH, MEXU, MICH, MO, US). Guad (Moran 6166, UC; Palmer 100, GH, MO, NY, YU). Son (Felger 87-42, ARIZ, MEXU, TEX; Palmer 554, US).A
Elevación
0 – 2300 mA
Ecología y Hábitat
Cliffs and rocky slopes, on a variety of acidic to mildly basic substrates.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
In Mexico the blades are tripinnate proximally and the pinnae usually ± perpendicular to the rachis and not overlapping (vs. bipinnate with the pinnae ascending and overlapping in subsp. californica (Lemmon) Windham of California).A