Amauropelta linkiana (C.Presl) Pic.Serm.
Descripción
Rhizomes erect; fronds (25–)60–140 cm long; stipes 15–25(–45) cm long; blades chartaceous to thick herbaceous, mostly 25–95 X 15–30 cm, with 2–6 proximal pinna pairs gradually reduced, lowermost 1–2 cm long or more, often short-stalked (ca. 1 mm), nearly always bearing proliferous buds in axils of distal pinnae; pinnae (4–)8–16 X 1–2.5(–3) cm, broadest at bases, incised 0.5–0.8 to the costae; aerophores tuberculiform or peg-like at bases of larger pinnae; segments oblong, 3–6 mm wide, rounded to truncate at apices, spreading or slightly oblique; veins 4–8(–12) pairs, lowermost meeting margins at or slightly above sinuses; indument abaxially of scattered hamate hairs ca. 0.2 mm long on rachises, costae, and veins, tissue between veins on both sides glabrous or glabrescent, or with appressed hairs 0.1–0.2 mm long adaxially; sori oblong to linear, to ca. 2 mm long, exindusiate; sporangia glabrous; 2n=58 (Oax, Ver), 116 (Chis).A
Forma de vida
TerrestreA
Ejemplar revisado
(Related to the synonym Thelypteris linkiana) Chis (Breedlove 32219, DS, 56485, CAS, ENCB). Gro (Lorea 1522, FCME; Velazquez 285, FCME, IEB). Oax (Conrad & Conrad 3239, MO, UC). Pue (Riba 463, MEXU; Sharp 45396, TENN, US). Qro (Díaz B. & Carranza 6518, IEB, UC). Ver (Purpus 5690, UC, US; Ventura A. 10451, ASU, ENCB, IEB).A
Elevación
500 – 2000 mA
Ecología y Hábitat
Especially along streams, wet banks.A
Tipo de vegetación
Bosque de neblina/mesófilo, Selva altaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
(In relation to the synonym) Thelypteris linkiana is easily distinguished by the combination of exindusiate, elongate sori, glabrous sporangia, and presence of hamate hairs on the axes abaxially (see T. atrovirens for additional discussion). Nearly all collections seen from Mexico have one or more minute buds in the axil(s) of distal pinnae. The only other species of subg. Amauropelta in Mexico that has buds on the blades is T. scalaris.A