Pleopeltis pyrrholepis (Fée) A.R.Sm. & Tejero

Primary tabs

Pleopeltis pyrrholepis (Fée) A.R.Sm. & Tejero

Descripción

Rhizomes creeping, 5–7 mm diam.; rhizome scales widely spreading, 3–4 mm long, bicolorous with black bases and maroon, long-attenuate, ciliate-serrulate tips, the teeth often bifid; fronds 25–50 cm long, distant, 1–2 cm apart; stipes 1⁄4–1⁄2 the frond length, castaneous, with long, acicular scales with somewhat twisted tips; blades pinnatisect, linear-lanceolate, 3.5–7 cm wide with very small terminal pinna; pinnae 22–40 pairs, linearoblong, to 2.5–3.5 cm long, bases broadly adnate, surcurrent, 4–6 mm wide, apices obtuse; nectaries on acroscopic surcurrent pinna bases; costae prominent, dark, at least in proximal half; adaxial surfaces with scattered acicular, fimbriate, white scales, with light brown centers; abaxial surfaces with dense scales 2–2.3 mm long, these with light brown centers, whitish margins and light Brown tips; sori round, emerging through scales; sporangia glabrous; 2n=74 (Oax, Ver).A

Forma de crecimiento

Hierba

Forma de vida

EpífitaA

Nutrición

Autotrófica

Ejemplar revisado

(Related to the synonym Polypodium pyrrholepis) Chis (Breedlove 25139, 34569, NY). Oax (Hernández G. 356, NY; Mickel 6464, NY; Wendt et al. 3625, NY). Tab (Magaña 2122, ENCB). Ver (Bourgeau 1446, NY; Purpus 2166, NY; Wendt et al. 3612, 3968, NY).
Unverified, Doubtful, or Mistaken Reports. Mich (Díaz-Barriga 1338, IEB, XAL, cited by Díaz-Barriga & Palacios-Rios, 1992, but not verified and doubtful, probably Polypodium rosei). Mor (Pérez García 794, UAMIZ, cited by Riba et al., 1996, but specimen is Polypodium rosei).A

Distribución

México (país) EndémicoA

Elevación

130 – 1500 mA

Tipo de vegetación

Selva alta, Bosque de neblina/mesófiloA

Categoría IUCN

No incluidaB

Categoría NOM-059-SEMARNAT-2010

No incluidaC

Estatus del taxón

(A) Como definida actualmente, probablemente una entidad natural (monofilética)

Discusión taxonómica

(In relation to the synonym Polypodium pyrrholepis) Within the P. squamatum complex (de la Sota, 1966), P. pyrrholepis is distinct by its short pinnae with rounded apices, and strongly reflexed, reddish brown rhizome scales.A

Bibliografía

A. Mickel, J. T. & Smith, A. R. 2004: The Pteridophytes of Mexico Vol. 88
B. IUCN 2022: The IUCN Red List of Threatened Species. Versión 2022-2
C. SEMARNAT 2019: MODIFICACIÓN del Anexo Normativo III, Lista de especies en riesgo de la Norma Oficial Mexicana NOM-059-SEMARNAT-2010: 101 pp. – https://www.dof.gob.mx/nota_detalle.php?codigo=5578808&fecha=14/11/2019#gsc.tab=0 [accessed 2023-05-04 06:16]