Pecluma hartwegiana (Hook.) F.C.Assis & Salino

Contenido

Descripción

Rhizomes creeping, 4–6 mm diam.; rhizome scales widely spreading, dark reddish brown, 4–6 X 1 mm, margins paler, narrow, tips linear to uniseriate, ovate-lanceolate to lanceolateattenuate, with an occasional marginal hair; fronds 15–60(–79) cm long, 3–8 mm distant; stipes 1⁄6–1⁄3 the frond length, castaneous, glabrous; rachises with dense hairs 0.3 mm long adaxially, scattered hairs abaxially; blades 1-pinnate, apices pinnatifid; pinnae 22–49 pairs, sessile, acuminate, linear-oblong, 30–50 X 6–10 mm, only slightly reduced proximally, the basal pinnae at least 1⁄2 as long as the longest pinnae; hairs sparse abaxially, scattered to abundant on adaxial surfaces, 0.1–0.3 mm, and along margins, 0.3–0.5 mm; margins slightly undulate; veins free; sori distinctly elongate-oblong; sporangia with sharp-pointed setae less than 0.1 mm long.A

Forma de crecimiento

Hierba

Forma de vida

raramente terrestre o epipétrica. EpífitaA

Nutrición

Autotrófica

Ejemplar revisado

(Related to the synonym Polypodium hartwegianum) BCS (Pray 1773, LAM). Chih (Correll & Gentry 22953, NY). Chis (Breedlove 22758, NY). DF (Pringle 11796, US). Dgo (Reveal 3573, NY). Gro (Hinton et al. 14729, NY). Gto (Zamudio & Murillo 6398, IEB). Hgo (Dunn et al. 23091, NY). Jal (Rzedowski 26164, MICH). Méx (Rzedowski 26447, NY). Mich (Hinton et al. 15347, NY). Mor (Lyonnet & Chavez 3397, US). Nay (Flores F. 2204, US). Oax (Mickel 4333, NY). Pue (Arsène 7065, US). Qro (Rzedowski 45738, IEB). SLP (Schaffner s.n. in 1879, NY). Ver (Ugent & Flores C. 2367, NY).
Unverified, Doubtful, or Mistaken Reports. NL (Favela 33, UNL, cited by Arreguín-Sánchez & Aguirre-Claverán, 1985, but not verified).A

Distribución

Centroamérica: El Salvador PresenteA; Guatemala PresenteA; Honduras PresenteA, México (país) Nativo y no endémicoA

Elevación

1850 – 3100 mA

Tipo de vegetación

Bosque de pino-encinoA

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 related to the synonym Polypodium hartwegianum) This is the most common species of Polypodium at higher elevations. It is distinct by the elongate sori and pilose blades. Polypodium liebmannii is similar but densely hairy on the abaxial surfaces, and the fronds are larger (60–115 cm).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]