Elaphoglossum lonchophyllum (Fée) T.Moore

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Elaphoglossum lonchophyllum (Fée) T.Moore

Descripción

Rhizomes short-creeping, to 3 mm diam.; rhizome scales linearlanceolate, lustrous, concolorous, brown, somewhat resinous, to 4(–20) mm long, entire; fronds clumped, 24–74 X 1.7–4.5 cm; phyllopodia indistinct; stipes 1⁄5–1⁄3 the frond length, sparsely clothed with minute, stellate, appressed hairs; blades narrowly elliptic, very thin, bases cuneate, apices long acuminate; veins evident, free, simple or once-forked, 1.5–2 mm apart, at 60–70° angle to costa; hydathodes absent, but vein tips expanded laterally, sometimes uniting; blade scales absent except for a few minute, stellate, reddish, resinous hairs, mostly on the abaxial blade surfaces; fertile fronds about equal to the sterile in length, but with longer stipes (ca. 1⁄2 the fertile frond length) and narrower blades, scales absent from abaxial blade surfaces.A

Forma de crecimiento

Hierba

Forma de vida

EpífitaA

Nutrición

Autotrófica

Ejemplar revisado

Chis (Breedlove 31627, DS, 32218, NY, 32994, DS). Gro (Lorea 1004, FCME; Núñez 1040, NY). Oax (Mickel 1003, 1084, 5706, NY). Ver (Bourgeau 2888, K, NY; Müller 435, NY).A

Distribución

Caribe PresenteA, Centroamérica: Costa Rica PresenteA; Guatemala PresenteA; Honduras PresenteA; Nicaragua PresenteA; Panamá PresenteA, México (país) Nativo y no endémicoA

Elevación

450 – 2500 mA

Tipo de vegetación

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

This is distinguished from other species by its very thintextured blades and laterally expanded vein ends. Specimens from Chiapas seem to have shorter, more resinous rhizome scales than do those of Guatemala, but since both conditions are found in Oaxaca, it is presumed to be a variable character in the species. Breedlove 32218, NY, has rhizome scales to 20 mm long. From E. decursivum, E. lonchophyllum differs in having longer stipes and blades not long-decurrent.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]