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 vida
EpífitaA
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
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
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
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