Elaphoglossum tejeroanum A.Rojas
Descripción
Ab E. tonduzii lamina basi angustiore, squamis rhizomatis minoribus planis, iis stipitis minoribus dispersis differt.
Rhizomes 5-10 mm diam. (without scales), compact to short-creeping; rhizome scales 8-15 x 1.0-2.5 mm, lanceolate, orange-yellowish, marginally entire; phyllopodia present, 7-15 mm long; fronds 25-42 cm long, 3-10 mm apart; stipes 1/4-2/5 of frond length; stipe scales 2-6 x 1.0-2.0 mm, orange-yellowish to pale brown, marginally entire to occasionally short-ciliate, present over the entire stipe; blades 18-27 x 2.4-3.8 cm, narrowly elliptic to oblong-elliptic, coriaceous, basally cuneate to broadly cuneate, apically acute; costal scales 1-3 x 0.5-1.5 mm, orange-yellowish to pale brown, marginally entire to erose; blade scales 0.1-0.3 wide, stellate, orange-yellowish to pale brown, dispersed, marginally long-ciliate, present only on abaxial surface; veins commonly evident, simple to 2-forked, 1-2 mm apart, diverging at 70-80° from costa; hydathodes absent; fertile fronds 30-45 cm long; stipes 1/3-1/2 of frond length; fertile blades 17-25 x 1.5-2.7 cm, elliptic to linear-elliptic, basally cuneate, apically acute; intersporangial scales absent.A
Rhizomes 5-10 mm diam. (without scales), compact to short-creeping; rhizome scales 8-15 x 1.0-2.5 mm, lanceolate, orange-yellowish, marginally entire; phyllopodia present, 7-15 mm long; fronds 25-42 cm long, 3-10 mm apart; stipes 1/4-2/5 of frond length; stipe scales 2-6 x 1.0-2.0 mm, orange-yellowish to pale brown, marginally entire to occasionally short-ciliate, present over the entire stipe; blades 18-27 x 2.4-3.8 cm, narrowly elliptic to oblong-elliptic, coriaceous, basally cuneate to broadly cuneate, apically acute; costal scales 1-3 x 0.5-1.5 mm, orange-yellowish to pale brown, marginally entire to erose; blade scales 0.1-0.3 wide, stellate, orange-yellowish to pale brown, dispersed, marginally long-ciliate, present only on abaxial surface; veins commonly evident, simple to 2-forked, 1-2 mm apart, diverging at 70-80° from costa; hydathodes absent; fertile fronds 30-45 cm long; stipes 1/3-1/2 of frond length; fertile blades 17-25 x 1.5-2.7 cm, elliptic to linear-elliptic, basally cuneate, apically acute; intersporangial scales absent.A
Forma de vida
Terrestre, EpífitaA
Ejemplar revisado
Chiapas: Mpio. Unión de Juárez, a 1 km de Chiquihuite, 1800 m, E. Martínez 20674 (MEXU). Jalisco: Sierra de Manatlán, 30-35 km SE of Autlán, precipitous seward facing slopes, 1-4 km below the summit called “La Cumbre”, near the lumber orad between El Chante and Cuzalapa and above the abandoned site of Durazno, 19°32’ N, 104°14’W, 1500-1900 m, R. McVaugh 23223 (ENCB). Michoacán: Mpio. Coalcomán, La Yerbabuena del Naranjillo, Cañada del Colorín, 1400 m, H. Díaz & E. Pérez 6180a (IEB). Oaxaca: 60 km by road N of Pachuca on road to Jalatengo (Hwy. 175), 1440 m, W. Anderson 13213 (IEB); Mpio. Juquila, ca. 80 km SSW of Sola de Vega, seaward side of the pass 25 km above San Gabriel Mixtepec, and ca. 30 km of the Río Verde crossing at Juchatengo, 1450-1700 m, R. MacVaugh 22375 (ENCB). Veracruz: borde E del Volcán San Martín Tuxtla, 1650 m, J. Beaman & C. Alvarez 5693 (MEXU).A
Elevación
1400 – 1900 mA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Elaphoglossum tejeroanum resembles E. Latifolum in its short-creeping rhizomes, shape and size of the fronds, elliptic blades, and color and size of the blade scales, but differs in having shorter (8-15 mm vs. 15-22 mm) and plane (vs. twisted) rhizome scales, relatively shorter [1/4-2/5 of frond length vs. ca. 1/3) stipes, and 0.3-1.5 mm wide (vs. absent) stipe apex scales. It is also similar to E. tonduzii H. Christ in its narrowly elliptic blade and dense stipe scales, but differs in longer [1/4-2/5 of frond length vs. 1/12-1/6) stipe and cuneate (vs. attenuate) blade base.A