Pityrogramma ebenea (L.) Proctor
Descripción
Rhizomes erect; rhizome scales 8–12 X 0.5–1 mm, concolorous, golden brown, black with age, entire, prolonged into hair-like, uniseriate tips; fronds to 100 cm long, clumped; stipes 1⁄3–1⁄2 the frond length, dark reddish brown, glabrous except bases with dense golden brown scales varying to hair-like scales 2 mm long and sparse, minute clavate hairs less than 0.1 mm long; blades deltate to narrowly triangular, to 40 cm wide, broadest at bases, 1–2-pinnate-pinnatifid; pinnae inequilateral, exaggerated basiscopically, segments perpendicular to costae, ovate, glabrous adaxially, coriaceous, white-farinose abaxially, margins strongly recurved; veins free, depressed adaxially; sori elongate along veins, appearing as black specks scattered in the white farina; spores brown; 2n=240 (Jam).A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 23327, DS, NY). Col (Orcutt 4699, NY). DF (Schaffner 124, in 1875, NY). Dgo (Breedlove 18909, CAS, NY). Gro (Hinton 14190, NY, US). Gto (Rzedowski 51253, IEB). Hgo (Frye 2545, US). Jal (Mexia 1827, CAS, DS, UC, US). Méx (Hinton 7434, MEXU, NY, US). Mich (Pringle 13642, CAS, UC). Mor (Lyonnet 1325, MEXU). Nay (Jones 23480, CAS, NY, UC). Oax (Mickel 5020, NY, UC). Pue (Fröderström & Hultén 747, NY). Qro (Rzedowski 48440, IEB). Rev (Díaz-Luna 18058, GUADA, NY). SLP (Parry & Palmer 1040, NY, US). Sin (Keil & Canne 8847, NY). Ver (Ventura A. 230, ENCB).A
Elevación
900 – 2600 mA
Ecología y Hábitat
On exposed banks.A
Tipo de vegetación
Bosque de neblina/mesófilo, Bosque de pino, Bosque de pino-encinoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Although P. ebenea generally occurs at higher elevations tan P. calomelanos, the two species occasionally grow together in Mexico. Pityrogramma ebenea is distinguished by the pinnules being broadest at the base and held nearly at right angles to the costae.A