Pecluma rhachipterygia (Liebm.) F.C.Assis & Salino
Descripción
Rhizomes creeping, 7–10 mm diam., greenish; rhizome scales ovate, pale brown, lustrous, 3–4 X 1–1.5 mm, somewhat caducous, point of attachment dark brown; fronds 20–70 cm long, distant; stipes ca. 2⁄5 the frond length, brown abaxially, stramineous adaxially, narrowly winged to base with 1 mm wide green wing, glabrous; rachises narrowly winged, glabrous; blades oblong, pectinate, with somewhat large terminal pinna, 16–23(–31) cm wide; pinnae 3–10 pairs, 1.2–2.6(–3.1) cm wide, linearlanceolate, slightly constricted near and dilated at bases; rachises, costae, and larger veins prominent, glabrous except for rare hairs 0.3–0.5 mm long on abaxial costae and appressed trichomidia on adaxial costae; margins with small, flap-like teeth; veins regularly uniting near margins to form a single row of areoles, free at margins; sori distinctly elongate-oblong, 2–3 mm long, 1 row each side of costae, medial; sporangia glabrous.A
Forma de vida
o rupícola. EpífitaA
Ejemplar revisado
(Related to the synonym Polypodium rhachipterygium) Chis (Purpus 6753, UC, 6871, UC, US). Oax (Hallberg 1605, NY; Hernández G. 1996, NY; Mickel 4230, 6416, 7417, NY). Ver (Calzada 1539, NY; Martínez C. 02191, NY; Vázquez T. 2487, NY).A
Elevación
80 – 1600 mA
Ecología y Hábitat
On rocks in streams in wet montane forests of Atlantic slope.A
Tipo de vegetación
Bosque de neblina/mesófilo, Selva altaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
(In relation to the synonym Polypodium rhachipterygium) This is one of the few species of Polypodium with distinctly elongate-oblong sori. The netted veins, broadly adnate pinnae, glabrous blades, and occurrence by streams at low elevations serve to identify it.A