Elaphoglossum huacsaro (Ruiz) Christ

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Elaphoglossum huacsaro (Ruiz) Christ

Descripción

Rhizomes compact, often 5–10 cm long, 3–5 mm diam., apices ascending; rhizome scales lanceolate, concolorous, castaneous to black, 1–3 mm long, lustrous, entire, each often with a tortuous hair-like tip; fronds 17–34 cm long, approximate; phyllopodia present but obscured by scales; stipes 1⁄4–1⁄3 of sterile frond length, orange to brown; stipe scales ca. 1 mm long, mostly appressed, some spreading, lanceolate, dark to pale, the larger ones often dark-tipped; sterile blades (6–)15–24 X 0.8–1.6 cm, linear, chartaceous to subcoriaceous, bases narrowly cuneate, apices obtuse to rounded; veins obscure, ca. 1 mm apart, at 60–75° angle to costa; hydathodes absent; blade scales reduced to resinous dots on both surfaces, costal scales ca. 1 mm long, lanceolate, spreading, and scales along adaxial lamina margins 0.2–0.6 mm long, appressed, ovate, entire; fertile fronds far exceeding the sterile in length, stipes 2⁄3 of frond length, nearly as long as the entire sterile leaf, blades narrow, (6–)8–11 mm wide, intersporangial scales absent.A

Forma de crecimiento

Hierba

Forma de vida

o epipétrica. TerrestreA

Nutrición

Autotrófica

Ejemplar revisado

Chis (Breedlove 22412, ENCB, NY, 23167, 32336, DS; Lloyd 4064, ENCB).A

Distribución

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

Elevación

1700 – 2200 mA

Ecología y Hábitat

On steep roadbanks.A

Tipo de vegetación

Bosque de pino-encino, 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

Elaphoglossum huacsaro is distinct by the linear fronds with resinous dots abaxially and small marginal scales adaxially, obtuse blade apices, ascending rhizomes, and terrestrial habitat.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]