Amauropelta caucaensis (Hieron.) A.R.Sm.
Descripción
Rhizomes suberect; fronds ca. 15(–50) cm long; stipes to ca. 5 cm X 1 mm, tan to brownish; blades subcoriaceous, 10–45 X 4–8(–12) cm, with 1–3 pairs of abruptly reduced proximal pinnae; pinnae to ca. 10 pairs, to 2(–6) X 0.8(–1.5) cm, incised to ca. 1 mm from costae; aerophores absent; segments slightly oblique, apices obtuse to subacute, ca. 2(–4) mm wide; veins mostly 4–7 pairs per segment; indument abaxially of antrorse acicular hairs mostly 0.3–0.5 mm long on costae and rachises, the costae also with a few narrow subclathrate scales ca. 2–3 cells wide, tissue between veins glabrous and eglandulose on both sides; sori supramedial, exindusiate, sometimes with a few receptacular setae; sporangia glabrous.A
Forma de vida
TerrestreA
Ejemplar revisado
(Related to the synonym Thelypteris caucaensis) Chis (Martínez S. 19577, MEXU).A
Elevación
2750 mA
Tipo de vegetación
Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
(In relation to the synonym Thelypteris caucaensis) This species occurs at high elevations throughout its wide range. Because of the subclathrate scales on the costae abaxially, the exindusiate sori, and the abruptly reduced proximal pinnae, it is believed to be related to T. rudis, from which it differs in its small size, narrower costal scales, sparser hairs on the costae abaxially, and more coriaceous blades.A