Diplazium wendtii Mickel & A.R.Sm.
Descripción
Rhizomes erect; rhizome scales concolorous, brown-black, lustrous, lanceolate to ovate-lanceolate, to 4 X 1.5 mm, entire; fronds 90–100 cm; stipes tan to stramineous, to ca. 40 cm X 4 mm, 2⁄5 the frond length, with dark brown scales at very bases, otherwise glabrous; blades chartaceous, 3-pinnate-pinnatifid to 4-pinnate, to ca. 60 X 48 cm, ovate, apices pinnatifid, lacking buds; rachises stramineous, glabrous; pinnae 25+ pairs per blade, stalked 5–7 mm, 20 X 25 cm long, inequilateral, perpendicular or ascending ca. 80° from rachises, pinnules stalked ca. 2 mm, alternate, inequilateral, costules adaxially with green wings perpendicular to the plane of the blades forming deep grooves, pinnulets and some ultimate segments stalked to 1 mm, inequilateral, bases cuneate, margins toothed; veins free, pinnate in ultimate lobes, 2–4 pairs per segment; indument absent on all parts of the blades; sori pinnate in ultimate segments, with entire indusia 1.5–2.5 X 0.3 mm.A
Forma de vida
TerrestreA
Ejemplar revisado
Known only from the type specimen. Oax (Wendt et al. 5580, NY!, MEXU, TEX, UC!).A
Distribución
México (país) EndémicoA
Elevación
450 mA
Tipo de vegetación
Selva altaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Diplazium wendtii is distinguished by its highly dissected blades, pinnae perpendicular or nearly so with respect to the rachises, petiolulate inequilateral pinnae, pinnules and pinnulets, and very small ultimate segments. Of Mexican diplaziums, only D. gomezianum approaches D. wendtii in blade dissection, both species being at least 3-pinnate to 3-pinnate-pinnatifid; all other Mexican diplaziums have less dissected blades. Diplazium gomezianum also differs in having opposite to subopposite pinnules that are nearly equilateral at their bases, as well as at least some hairs or scales on the laminae abaxially, at least at the segment bases.A