Phanerophlebia remotispora E.Fourn.

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Phanerophlebia remotispora E.Fourn.

Descripción

Rhizomes suberect to erect, usually unbranched; rhizome scales concolorous, brown, ovate to ovate-lanceolate, 3.5–10 X 1–3(–4) mm, margins denticulate to ciliate; fronds mostly 60–125 cm long; stipes 1⁄3–1⁄2 the frond length, with dense brownish, ovate to lanceolate scales at bases; blades ovate to ovatelanceolate, 35–65 cm long; rachises glabrescent or with sparse, thin, curled, fibrillose scales 2–4 mm long, mostly at pinna bases; buds absent from axils of distal pinnae; pinnae 8–18 lateral pairs, linear-lanceolate, straight to often falcate, mostly 9–18 X 1.5–3.5 cm, bases rounded to broadly cuneate, apices attenuate, lowermost pinnae inequilateral, not auriculate, distal pinnae equilateral, margins spinulose most of their length, decidedly so at pinna apices; veins anastomosing about 2⁄3 the way to pinna margins; sori in 2–4(–5) series between costae and pinna margins, inner row mostly (2–)3–5 mm from costa, outer row 1–3 mm from margin; indusia tan, caducous, 0.8 mm diam., flat or concave, not umbonate; 2n=82 (Chis, Hgo, Ver).A

Forma de crecimiento

Hierba

Forma de vida

o epipétrica. TerrestreA

Nutrición

Autotrófica

Ejemplar revisado

Chis (Breedlove 21363, LL, NY; Yatskievych 85-186, ARIZ, NY, UAMIZ, UC). Hgo (Yatskievych 83-128, ENCB, NY). Méx (Guillemin s.n., NY). Oax (Mickel 7248, UC). Pue (Lorea 1095, FCME). Qro (Lorea 686, FCME, IEB). SLP (Rzedowski 10571, ENCB, NY). Ver (Copeland herb. 40, MEXU, UC; Duran E. & Burgos 739, XAL).
Unverified, Doubtful, or Mistaken Reports. Mich (reported by Mickel & Beitel, 1988, but not verified, the specimen used as a basis is probably P. nobilis; reported by Tejero-Díez & Arreguín-Sánchez, 2004, but not verified).
A

Distribución

Centroamérica: Guatemala PresenteA, México (país) Nativo y no endémicoA

Elevación

250 – 2200 mA

Ecología y Hábitat

Often on calcareous rocks (limestone sinks).A

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

From P. nobilis, P. remotispora differs in having anastomosing veins, first series of sori usually more distant from the costae, broader pinnae, and occurrence at generally lower elevations. It appears to be absent from western Mexico, where P. nobilis is relatively common. This appears to be a classic case of ecogeographic speciation, with P. remotispora very common on the Caribbean slope and in southern Mexico, and P. nobilis very common on the Pacific slope; however, there is slight interdigitation of the ranges. See discussion under P. nobilis for additional comments.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]