Melpomene melanosticta (Kunze) A.R.Sm. & R.C.Moran

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Melpomene melanosticta (Kunze) A.R.Sm. & R.C.Moran

Descripción

Rhizomes short-creeping to usually suberect, compact, 2–3 mm diam.; rhizome scales dark brown to blackish, 2–3 mm, appressed, acute at tips; fronds clumped; stipes dark brown, 0–1 cm long, 1⁄20–1⁄10 the frond length, lacking setae on both sides, hairy abaxially, the hairs pale reddish, 0.1–0.2 mm long, generally branched, lax; blades 10–20 X 0.6–1(–1.5) cm, linear-elliptic, gradually tapering at both ends; rachises lacking setae on both sides, sparsely hairy to glabrescent abaxially, the hairs 0.1–0.2 mm long, generally branched, pale reddish, lax; pinnae 22–50 pairs, oblong, to 7 mm long, 1.5–2.5 times as long as wide, mostly spreading, rounded at tips; costae not visible abaxially; indument absent abaxially; sori mostly 2–4 pairs per segment, lacking setae among the sporangia.A

Forma de crecimiento

Hierba

Forma de vida

EpífitaA

Nutrición

Autotrófica

Ejemplar revisado

Chis (Breedlove 29900, DS p.p., 29902, 33014, DS; Martínez S. 18679, MEXU, UAMIZ).A

Distribución

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

Elevación

800 – 1000 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 species most resembles M. moniliformis but is found at lower elevations, is always epiphytic (vs. usually terrestrial or epipetric), has suberect (vs. creeping) rhizomes, and has blades tapering gradually at the base, nearly or quite to the rhizomes. The blade texture of M. melanosticta is also less coriaceous.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]