Melpomene flabelliformis (Poir.) A.R.Sm. & R.C.Moran

Primary tabs

Melpomene flabelliformis (Poir.) A.R.Sm. & R.C.Moran

Descripción

Rhizomes long-creeping, 1.5–2 mm diam.; rhizome scales reddish brown, 3–4 mm long, appressed, acute at tips; fronds distant; stipes castaneous, gray-brown or black, 1–6(–11) cm long, 1⁄8–1⁄3 the frond length, lacking setae but with very short 0.3 mm pale branched hairs; blades linear, 10–20 X 1–1.6 cm, slightly reduced at bases, gradually tapering distally; rachises abaxially bearing scattered reddish setae 1–1.5 mm long and some smaller branched hairs, glabrous adaxially; pinnae ca. 25–45 pairs, oblong, 4.5–7 mm long, ca. 2 times longer than wide, perpendicular to rachises, obtuse at tips; costae not visible abaxially; indument abaxially of sparse setae 0.8–1 mm long on costae, segment margins with rare twisted hairs 0.3 mm long; sori 1–3 pairs per pinna, sporangia intermixed with reddish setae 0.5–1 mm long.A

Forma de crecimiento

Hierba

Forma de vida

EpífitaA

Nutrición

Autotrófica

Ejemplar revisado

Chis (Breedlove 22070B, DS; Mickel 1247c, NY). Oax (Hallberg 847a, NY, US; Mickel 3823b, 4325, 5251, 6784b, 6786, NY; Smith 470, UC p.p.).

A

Distribución

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

Elevación

2150 – 2800 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

Melpomene flabelliformis is very close to M. moniliformis and M. deltata (see discussion under M. moniliformis). A specimen from Chiapas (Mickel 1247c) was growing with M. deltata, M. moniliformis, and M. zempoaltepetlensis, at 2850 meters. Smith 470, from Oaxaca, was growing mixed with M. moniliformis. Grammitis andicola, recently described from Peru and attributed also to Colombia, seems to be exactly Melpomene flabelliformis from Africa and offshore islands. Furthermore, it is conspecific with specimens of M. flabelliformis from Mexico and Central America. What Stolze called Grammitis flabelliformis from Peru (and matched by some specimens from Costa Rica to Bolivia), is perhaps a different species, distinguished by narrower, more acuminate, and more spreading scales and smaller fronds. However, this group is sufficiently problematic taxonomically that confident conclusions are impossible at present.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]