Pleopeltis rosei (Maxon) A.R.Sm. & Tejero

Primary tabs

Pleopeltis rosei (Maxon) A.R.Sm. & Tejero

Descripción

Rhizomes creeping, 3–6 mm diam.; rhizome scales slightly reflexed, flaccid, linear-lanceolate with sparse teeth, light reddish brown, darker in the center with age and then weakly bicolorous, 4–5 mm long; fronds (10–)20–50 cm long; stipes 1⁄5–2⁄5 the frond length, with abundant scales, stramineous to orange-tan, with red-black point of attachment and acicular tip 4–7 mm long; blades pinnatisect, long-lanceolate, 4.5–11 cm wide, the longest pinnae 2.4–6 cm X 4–6 mm; pinnae 18–37 pairs, linear, the terminal pinna small to medium-sized; nectaries on acroscopic surcurrent pinna bases; adaxial surfaces heavily scaly, the scales acicular, fimbriate, each with reddish black center and whitish margins, 2–2.5 mm long; abaxial surfaces and costae completely hidden by the scales, these acicular, like those on the adaxial surfaces; sori impressed slightly (but this not apparent on the adaxial surface), round to slightly oblong; sporangia glabrous; 2n=74 (Mexico-state not given).A

Forma de crecimiento

Hierba

Forma de vida

o epipétrica. EpífitaA

Nutrición

Autotrófica

Ejemplar revisado

(Related to the synonym Polypodium rosei) Dgo (Breedlove 59125, NY). Gro (Hinton et al. 14498, NY). Jal (McVaugh 26022, NY). Méx (Dunn & Dunn 18933, NY). Mich (Rzedowski 34627, ENCB). Mor (Lyonnet 859, MEXU, NY). Nay (Breedlove 44341, CAS). Oax (Campos V. 2201, MEXU). Sin (Breedlove 44890, NY). Zac (McVaugh 25789, NY).
Unverified, Doubtful, or Mistaken Reports. Qro (Fernández N. 3755, ENCB, cited by Díaz-Barriga & Palacios-Rios, 1992, but not verified).A

Distribución

México (país) EndémicoA

Elevación

(600 –)1000 – 3000 mA

Ecología y Hábitat

On rocky slopes and moist ravines, montane.A

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 relation to the synonym Polypodium rosei) This species is distinct from P. sanctae-rosae by the rhizome scales, which are larger (over 4–5 mm long instead of 0.8–1.5 mm).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]