Elaphoglossum maya N.T.L.Pena
Descripción
Ab E. latifolium rhizomate tenue, stipite longiori, necnom lamina angustiore diversum.
Rhizomes 2.5-4 mm diam,short-creeping; rhizome scales 4-8 x 0.5-1.0 mm, linear-lanceolate, orange-yellowish, marginally entire to short-ciliate; phyllopodia 5-15 mm long; fronds (22-)30-45 cm long; stipes 1/3-1/2 the frond length; stipe scales 2-5 x 0.5-1.0 mm, lanceolate, orange-yellowish, very dispersed, marginally short to long-ciliate, apically occasionally dark brown to blackish; blades 16-23 x 1.7-2.5 cm, narrowly oblance-olate to linear-elliptic, basically cuneate, apically narrowly acute; costal scales 2-5 x 0.5-1.0 mm, lanceolate, orange-yellowish withoccasional blackish apex, marginally short to long-ciliate; blade scales 0.1-0.3 mm diam., stellate, orange-yellowish to brown, dispersed, present only on abaxial surface; veins evident, simple to 1-forked, 0.8-1.5 mm apart, diverging at 70-80° from costa; hydathodes absent; fertile fronds 17-43 cm long; stipes ca. 1/2 the frond length; fertile blades 11-18 x 1-1.4 cm, narrowly elliptic to linear-elliptic, basically cuneate, apically acute to narrowly acute; intersporangial scales absent.A
Rhizomes 2.5-4 mm diam,short-creeping; rhizome scales 4-8 x 0.5-1.0 mm, linear-lanceolate, orange-yellowish, marginally entire to short-ciliate; phyllopodia 5-15 mm long; fronds (22-)30-45 cm long; stipes 1/3-1/2 the frond length; stipe scales 2-5 x 0.5-1.0 mm, lanceolate, orange-yellowish, very dispersed, marginally short to long-ciliate, apically occasionally dark brown to blackish; blades 16-23 x 1.7-2.5 cm, narrowly oblance-olate to linear-elliptic, basically cuneate, apically narrowly acute; costal scales 2-5 x 0.5-1.0 mm, lanceolate, orange-yellowish withoccasional blackish apex, marginally short to long-ciliate; blade scales 0.1-0.3 mm diam., stellate, orange-yellowish to brown, dispersed, present only on abaxial surface; veins evident, simple to 1-forked, 0.8-1.5 mm apart, diverging at 70-80° from costa; hydathodes absent; fertile fronds 17-43 cm long; stipes ca. 1/2 the frond length; fertile blades 11-18 x 1-1.4 cm, narrowly elliptic to linear-elliptic, basically cuneate, apically acute to narrowly acute; intersporangial scales absent.A
Forma de vida
EpífitaA
Ejemplar revisado
Chiapas: Jaltenango, El Triunfo Reserve, trail from El Triunfo camp N to El Triunfo, 15° 39’ N, 92°50’ W, 2100 m, R. Hampshire et al. 451(MEXU). Oaxaca: Comaltepec, Ixtlán, 11.1 km SW de La Esperanza, carretera Oaxaca-Tuxtepec, entrada al camino de San Isidro Yolox, 17°36’ N, 96°23’ W, 1950 m, A. Campos & R. Torres 902(MEXU).A
Elevación
1250 – 2100 mA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Elaphoglossum angustifrons resembles E. latifolium in short-creeping rhizome and short-ciliate rhizome scales, but differs in having thinner (2.5-4 mm vs. 5-15 mm diam.) rhizome, longer [1/3-1/2 the frond length vs. 1/6-1/4(-1/3)] stipes, narrowly oblanceolate to linear-elliptic (vs. elliptic) and narrower (1.7-2.5 cm wide vs. 4-9 cm) blade. It is also similar to E. longicrure H. Christ in narrow rhizomes and blade shape, but differs in having longer (4-8 mm long vs. 2-4 mm) and dentate (vs. entire) rhizome scales, relatively longer [(22-)30-45 cm long vs.15-30(-45) cm] fronds, and longer [1/3-1/2 the frond length vs. 1/10-1/5 (-1/3)] stipe.A