Pellaea truncata Goodd.
Descripción
Rhizomes compact, ascending, 5–10 mm diam.; rhizome scales linear-subulate, bicolorous, black with brown, erose-dentate margins; fronds somewhat dimorphic, sterile shorter and less divided than the fertile, 10–40 cm long, clumped; stipes ca. 1⁄3 the frond length, castaneous to dark brown, lustrous, adaxially flattened or shallowly grooved, glabrous or nearly so; blades ovatedeltate, bipinnate, 5–18 cm wide; rachises straight, glabrous; pinnae 5–8 pairs of divided pinnae; ultimate segments narrowly oblong, 4–10 mm long, coriaceous, glabrous, apices mucronate; adaxial and abaxial surfaces glabrous; sporangia 64-spored, mixed with farina; spores brown; 2n=58 (USA).A
Forma de vida
TerrestreA
Ejemplar revisado
BCN (Brandegee s.n., 20 Apr 1889, GH, NY; Montufar L. 74, ENCB; Moran 7996, UC; Wiggins 9826, 16846, DS). BCS (Moran 11671, DS, UC, 18727, UC, US). Son (McManus 737, MEXU; Phillips 338, 419, MICH).
Unverified, Doubtful, or Mistaken Reports. Chih (Correll 23306, cited by Knobloch & Correll, 1962, without herbarium, not verified).A
Unverified, Doubtful, or Mistaken Reports. Chih (Correll 23306, cited by Knobloch & Correll, 1962, without herbarium, not verified).A
Elevación
500 – 1650 mA
Ecología y Hábitat
Cliffs and rocky slopes, on various substrates but rarely observed on limestone.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Pellaea truncata crosses with P. wrightiana in areas of overlap, and the hybrids can be distinguished by their malformed spores.A