Polypodium echinolepis Fée
Descripción
Rhizomes creeping, 6–10 mm diam.; rhizome scales orangebrown, deltate-attenuate, margins of tips curled, minutely pubescent on outer surfaces, spreading, 3–5 X 1.5–2 mm; fronds 30–85 cm long; stipes 1⁄5–2⁄5 the frond length, stramineous to light brown, with scattered to dense white hairs 0.1–0.3 mm long; blades 1-pinnate, 15–26 cm wide, terminal pinna pinnatifid; pinnae 9–20 pairs, 1.4–2.5 cm wide, linear-lanceolate; rachises, costae, and laminar surfaces subglabrous or with dense hairs 0.1–0.3 mm long; margins serrulate with hairs 0.1–0.3 mm long; veins free to casually anastomosing; sori round, medial, in one row on each side of costae; sporangia setose with hairs 0.3 mm long; 2n=74(Ver).A
Forma de vida
EpífitaA
Ejemplar revisado
Chis (Breedlove 29135, NY, 32906, MEXU). Mich (Escobado 1369, NY). Mor (Lyonnet 500500002, MEXU). Oax (Mickel 1430, 7266, NY). Pue (Riba et al. 282, NY). Ver (Bourgeau 1430, 3070, NY; Ventura A. 15797, MEXU).
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Elevación
500 – 1600 mA
Tipo de vegetación
Selva alta, Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
See key and description of P. eperopeutes for comparison. Polypodium echinolepis is most closely related to P. subpetiolatum but is distinct by its variable venation (often anastomosing or casually so, but sometimes totally free) and rhizome scales having minute surficial hairs. Rarely the rhizome scales of P. subpetiolatum are slightly papillose, obscuring the difference between the two species. More work is needed.
Polypodium echinolepis resembles P. puberulum in its papillose rhizome scales, but the latter is distinct by its broadly adnate pinnae.
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Polypodium echinolepis resembles P. puberulum in its papillose rhizome scales, but the latter is distinct by its broadly adnate pinnae.
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