Elaphoglossum polypodium A.Rojas
Descripción
Ab E. latifolium stipite longiori, lamina crassiori, squamis rhizomatis minoribus pardalis, iis laminae pardalis vel nigris abstat.
Rhizomes 8-12 mm diam., very short-creeping, horizontal; rhizome scales 5-10 x 1-1.5 mm, linear-lanceolate, brown-yelowish, marginally entire to sparce ciliate, plane, deciduous with old; phyllopodia present, 10-20 mm long, robust, persistent; fronds 50-68 cm long, 1-3(-10) mm distant; stipes ca. 1/3-2/5 of frond length; stipe scales 3-8 x 1-2 mm, ovate-lanceolate, orange-yellowish, marginally long-ciliate, present only on stipe base; blades 40-50 x 5-6 cm, narrowly elliptic to narrowly oblanceolate, coriaceous, basally attenuate, apically long acute; costal scales similar to blade scales; blade scales 0.3-1 mm, ovate to stellate, brown to blackish, dispersed, marginally long-ciliate, present only on abaxial surface; veins evident, 1-2-forked (rarely simple), 1-1.5 mm apart, diverging at 80° from costa; hydathodes absent; fertile fronds not seen.A
Rhizomes 8-12 mm diam., very short-creeping, horizontal; rhizome scales 5-10 x 1-1.5 mm, linear-lanceolate, brown-yelowish, marginally entire to sparce ciliate, plane, deciduous with old; phyllopodia present, 10-20 mm long, robust, persistent; fronds 50-68 cm long, 1-3(-10) mm distant; stipes ca. 1/3-2/5 of frond length; stipe scales 3-8 x 1-2 mm, ovate-lanceolate, orange-yellowish, marginally long-ciliate, present only on stipe base; blades 40-50 x 5-6 cm, narrowly elliptic to narrowly oblanceolate, coriaceous, basally attenuate, apically long acute; costal scales similar to blade scales; blade scales 0.3-1 mm, ovate to stellate, brown to blackish, dispersed, marginally long-ciliate, present only on abaxial surface; veins evident, 1-2-forked (rarely simple), 1-1.5 mm apart, diverging at 80° from costa; hydathodes absent; fertile fronds not seen.A
Forma de vida
EpífitaA
Ejemplar revisado
Oaxaca: Dist. Cuicatlán, La Escalera camino de Zantla a Papalo, 2000 m, R. González & C. Conzatti 16822 (GH); Dist. Villa Alta, 3500 ft., B. Hallberg 1508 (ENCB).A
Elevación
1066 – 2000 mA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Elaphoglossum polypodium resembles E. latifolium in its short-creeping rhizomes, frond size and elliptic blades, but differs in having longer (1/3-1/2 of frond length vs. 1/4-1/3) stipes, narrowly elliptic to narrowly oblanceolate (vs. elliptic) and very coriaceous (vs. chartaceous to subcoriaceous) blades, and brown to blackish (vs. orange-yellowish) blade scales. It is also similar to E. andicola (Fée) T. Moore, but differs in having smaller (5-10 mm long vs. 7-18 mm), brown-yellowish (vs. orange-yellowish to blackish), plane (vs. twisted) and deciduous (vs. persistent) rhizome scales, narrowly elliptic to narrowly oblanceolate (vs. elliptic) blade.
The name make reference to longer and persistent phyllopodia.
A
The name make reference to longer and persistent phyllopodia.
A