Elaphoglossum vestitum (Schltdl. & Cham.) Schott

Primary tabs

Elaphoglossum vestitum (Schltdl. & Cham.) Schott

Descripción

Rhizomes short-creeping, ca. 5 mm diam.; rhizome scales castaneous, lustrous, linear-lanceolate, toothed, 4–6 mm long; fronds clumped, 25–60 X 1.4–3.1 cm; phyllopodia distinct, short; stipes 1⁄8–2⁄5 the frond length, with scales linear, tan, ca. 2 mm long, ciliolate, spreading, others smaller, stellate; blades narrowly elliptic, chartaceous, bases narrowly cuneate, apices caudate; veins evident to obscure, free, simple to once-forked, ca. 1 mm apart, at ca. 70° angle to costa; hydathodes absent; blade scales orange, linear, highly skeletonized, very long-ciliolate, the hairs 3–4 times as long as the scale body width, plane or the hairs turned upward, loosely covering the abaxial surfaces, adaxial surfaces glabrous with age, with narrowly lanceolate scales with long hair-teeth or substellate with long teeth; fertile fronds slightly shorter or longer than the sterile fronds, stipes 1⁄3–1⁄2 the frond length, with a few reduced scales on abaxial costae, but not among the sporangia.A

Forma de crecimiento

Hierba

Forma de vida

EpífitaA

Nutrición

Autotrófica

Ejemplar revisado

Chis (Breedlove 21846, NY, 38979, DS; Kress et al. 749, MEXU). Hgo (Herrera & Riba 2205, MEXU). Oax (Croat 43916, NY; Mickel 4721, NY). Pue (Riba 12, MEXU). Qro (Díaz B. & Carranza 6556, IEB, MEXU). Ver (Nee &Taylor 29466, NY; Purpus 6425, NY).A

Distribución

México (país) EndémicoA

Elevación

300 – 2000 mA

Tipo de vegetación

Selva alta, Bosque de neblina/mesófilo, 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

Elaphoglossum vestitum is most closely allied to E. rubescens, resembling it in rhizome scale color and texture, ciliate blade scales lightly covering the laminae, and lax fronds with caudate tips. The latter can be distinguished by the rhizome scales not (or only weakly) toothed, the stipes often with resin dots, and the blade scales with the teeth and margins upturned. These two species may be only varietally distinct, and several specimens from Chiapas overlap in morphology.
Elaphoglossum auricomum belongs to the same complex, but has more abundant, spreading stipe scales, the rhizome scales are lighter in color, and the blades have acuminate apices. Some specimens of E. paleaceum have blades only lightly covered with scales, but they have black scales on the stipes and abaxial rachises.
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]