Pleopeltis sanctae-rosae (Maxon) A.R.Sm. & Tejero

Primary tabs

Pleopeltis sanctae-rosae (Maxon) A.R.Sm. & Tejero

Descripción

Rhizomes creeping, 5–7 mm diam.; rhizome scales appressed to slightly reflexed, broadly ovate to linear-lanceolate, fimbriate, 0.8–1.5 mm long, each with a dark red-brown center and whitish margins; fronds 40–55 cm long, distant; stipes 1⁄4–1⁄2 the frond length, with scales mostly appressed, of two types, one similar to rhizome scales, the other dark-centered with toothed acicular tips 2 mm long, spreading (even on specimens with only small rhizome scales); blades pinnate to pinnatisect, with small to medium-sized terminal pinnae, lanceolate to deltate-lanceolate, 8–15 cm wide; pinnae 20–30 pairs, 5–6.5 cm X 5–8 mm wide, linear; nectaries on acroscopic surcurrent pinna bases; costae castaneous at bases, covered with scales; adaxial surfaces with sparse scales, glabrescent with age, the scales acicular and fimbriate with centers reddish and margins whitish, 2–2.5 mm long; abaxial surfaces with scales completely hiding the surfaces and costae, linear-lanceolate, like scales on adaxial surfaces; sori impressed slightly but not embossed, round to slightly oblong; sporangia glabrous; 2n=74 (Oax).A

Forma de crecimiento

Hierba

Forma de vida

EpífitaA

Nutrición

Autotrófica

Ejemplar revisado

(Related to the synonym Polypodium sanctae-rosae) Chis (Breedlove 25504, 27548, NY). Col (Vázquez 1303, UC, photocopy of specimen at UCR). Jal (Boutin & Brandt 2489, NY; McVaugh 21365, MICH; Palafox 5409, NY). Méx (Tejero-Díez, 2435, IZTA). Nay (McVaugh 16445, NY). Oax (Mickel 867, 3734, NY; Ramírez G. 556, NY).
Unverified, Doubtful, or Mistaken Reports. Mich (Arséne 5226, MEXU, cited by Díaz-Barriga & Palacios-Rios, 1992, as Polypodium squamatum L., but that species occurs only in the West Indies; this specimen is most likely Polypodium sanctae-rosae or P. rosei).A

Distribución

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

Elevación

800 – 2700 mA

Tipo de vegetación

Bosque de pino-encino, Bosque de 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 relation to the synonym) Polypodium sanctae-rosae is the most abundant member of the P. squamatum complex (de la Sota, 1966) and is distinguished by its mostly appressed rhizome scales and pinnae 5–6.5 cm long.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]