Elaphoglossum tenuifolium (Liebm.) T.Moore
Descripción
Rhizomes short-to moderately creeping, 1–2 mm diam.; rhizome scales dense to sparse, ovate, orange or tan with varying degrees of dark, shiny, sclerotic streaking, ca. 3 mm long, deeply cordate, appearing nearly peltate, entire or with occasional small, irregular teeth; fronds 1–8 mm apart, 6–23 X 0.6–1 cm; phyllopodia distinct; stipes 1⁄4–2⁄3 the frond length, glabrous or with tan, ovate scales; blades linear-elliptic, chartaceous, bases attenuate, apices acuminate; veins obscure, free, simple or onceforked, ca. 1 mm apart, at 60–70° angle to costa; hydathodes absent; blade scales sparse, reduced to minute stellate trichomidia or dots on abaxial surfaces, rare adaxially; fertile fronds similar to the sterile in blade size and shape, scales absent on abaxial surfaces.A
Forma de vida
o epipétrica. TerrestreA
Ejemplar revisado
Chis (Ghiesbreght 305, NY). DF (Rzedowski 19495, ENCB). Dgo (Reeder et al. 3354, ARIZ, US). Gro (Rzedowski & McVaugh 251, ENCB). Hgo (Pringle 13637, US). Jal (McVaugh 26141, MICH). Méx (Hinton 3275, NY). Mich (Hinton 13459, NY). Mor (Lyonnet 2466, US). Oax (Pringle 4916, NY, PH, UC, US). Ver (Riba et al. 353, MEXU, NY).A
Elevación
1800 – 3100 mA
Tipo de vegetación
Bosque de pino-encino, Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Although the general habit and the dark streaking of the rhizome scales are similar to those of Elaphoglossum affine and E. alansmithii, E. tenuifolium can be distinguished by its narrow blade and generally shorter rhizome length. See comments under those species.
Mickel (in Davidse et al., 1995) included E. tenuifolium in E. minutum (Fée) T. Moore, but the latter is a larger plant (fronds 6–38 cm long) and its the rhizomes are short-creeping to compact with the fertile fronds slightly to far exceeding the sterile in length. It occurs from Costa Rica to Bolivia, Brazil, Jamaica, and Hispaniola.
A
Mickel (in Davidse et al., 1995) included E. tenuifolium in E. minutum (Fée) T. Moore, but the latter is a larger plant (fronds 6–38 cm long) and its the rhizomes are short-creeping to compact with the fertile fronds slightly to far exceeding the sterile in length. It occurs from Costa Rica to Bolivia, Brazil, Jamaica, and Hispaniola.
A