Amauropelta oaxacana (A.R.Sm.) Salino & T.E.Almeida
Descripción
Rhizomes erect; fronds ca. 60–95 cm long, mucilaginous when young; stipes stramineous to tan, 8–20 cm X 3–5 mm; blades 50–100 X 14–25 cm, with 6–10 pairs of gradually reduced proximal pinnae, lacking proliferous buds; rachises adaxially with scattered hairs along the sulcus, glabrous abaxially; pinnae 7–13 X 1.3–2.5(–3) cm, broadest at their bases, incised ca. 0.8 to the costae; aerophores prominent, tuberculate or peg-like at pinna bases; segments 3–5 mm wide, slightly oblique, not falcate, apices rounded or subacute; veins 5–12 pairs per segment, glabrous; indument abaxially generally absent, but with a few stramineous linearlanceolate appressed scales towards bases of costae, adaxially with scattered acicular hairs 0.5 mm long along costae, veins and tissue between veins glabrous on both sides of blades; sori medial, round or slightly oblong, with prominent, persistent, glabrous indusia ca. 0.7 mm diam.; sporangia glabrous.A
Forma de vida
TerrestreA
Ejemplar revisado
(Related to the synonym Thelypteris oaxacana) Chis (Breedlove 32326, 22845, DS, 34402, DS, ENCB, 42099, DS). Gro (Lorea 2058, FCME; Millan Espin 124, FCME). Oax (Germán R. & Sousa 47, MEXU; Smith 403, UC).A
Elevación
1500 – 2250 mA
Ecología y Hábitat
Along streams.A
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 oaxacana differs from Mexican congeners in the costae and tissue between veins lacking hairs and glands abaxially and in having large, persistent indusia. It is very closely related to T. pachyrhachis (Kunze ex Mett.) Ching, a variable species of southern Central America, the Antilles, and South America.A