Pteris paucinervata Fée
Descripción
Rhizomes short, erect; rhizome scales 3–4 X 0.8–1 mm, concolorous, golden brown; fronds 60–150 cm long; stipes ca. 1⁄2 the frond length, reddish brown, glabrous; blades pinnate to bipinnate-pinnatifid, not pedate, basal basiscopic pinnules pinnatifid; ultimate segments entire to crenate, 6–12 mm wide, obtuse, chartaceous to firmly herbaceous, decurrent, adaxial surfaces glabrous, abaxial surfaces with scattered, short hairs 0.1 mm long, sinuses asymmetrical; rachis awns reduced to 1–2 round papillae 0.1 mm long; pinna awns blunt, 0.1 mm long; veins free, not running to sinuses, sterile veins ending before margins, some veins arising from costae of pinnae; indusia 0.8–1 mm wide, entire; sporangia without paraphyses; spores reddish brown.A
Ejemplar revisado
Chis (Breedlove 33111, DS, MEXU, 46196, CAS, ENCB; Martínez S. 19642, MEXU, XAL; Matuda 2949, MEXU, NY, US, 5389, MEXU, 5449, US). Gro (Campos 1660, FCME; Lorea 1171, ENCB, FCME, MEXU). Ver (Finck 185, UC).A
Elevación
(120 –)800 – 2600 mA
Tipo de vegetación
Bosque de pino-encino, Bosque de neblina/mesófilo, Selva altaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Pteris paucinervata resembles P. pungens in having some veins arising from the pinna costae, but is distinct by the reduced rachis awns and veins ending before the segment margins.A