Pityrogramma dealbata (C.Presl) R.M.Tryon
Descripción
Rhizomes erect; rhizome scales 2–3 X 0.1–0.3 mm, concolorous, light brown, entire, prolonged into long, hair-like, uniseriate, often divided tips; fronds less than 40 X 12 cm, clumped; stipes 1⁄3–1⁄2 the frond length, dark reddish brown, glabrous except for rare golden brown scales at extreme bases; blades lanceolate, bipinnate-pinnatifid to tripinnate, pinnae equilateral; ultimate segments ascending, cuneate, ovate, coriaceous, glabrous, white-farinose abaxially, rarely yellow, margins toothed, slightly recurved; veins free, depressed adaxially; sori elongate along the veins, appearing as black specks scattered in white farina; spores reddish brown.A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 20648, DS, NY; Marcks & Marcks 884, ENCB, WIS). Col (Jones 515, CAS, DS, NY, UC, US). Gro (Lorea 4600, FCME). Jal (Pringle 4377, MEXU, NY, UC, US). Mich (Nelson 6937, US). Nay (Mexia 510, CAS, US). Oax (Mickel 6276, NY, UC; Roe et al. 544, ENCB, US). Ver (Pringle 6078, MEXU, MO, NY, UC, US).A
Elevación
100 – 1300 mA
Ecología y Hábitat
Roadside banks and wooded slopes of the Pacific slope, riparian situations.A
Tipo de vegetación
Bosque de pino-encino, Selva altaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Pityrogramma dealbata resembles P. calomelanos in having bipinnate-pinnatifid to tripinnate blades and occurring at low elevations, but is distinct in its cuneate, ovate segments, smaller fronds, and smaller rhizome scales.
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