Amauropelta sancta (L.) Pic.Serm.
Descripción
Rhizomes erect, to 1.5 cm diam.; fronds numerous, tightly clustered, mostly 15–25(–40) cm long; stipes stramineous, mostly 3–5 cm X 1 mm; blades thin-chartaceous, mostly 10–20 X 2–9 cm, oblanceolate, attenuate at apices, the proximal 3–7 pinna pairs gradually reduced, auriculate or unequally 3-foliate; pinnae 1–5 X 0.4–1.2 cm, usually inequilateral at the bases, incised to within 1 mm of costae; aerophores absent; segments strongly oblique, 1–2 mm wide, rounded to acutish at apices, entire or crenateserrate, the proximal pair often free; veins 2–6(–10) pairs per segment; indument abaxially of relatively sparse thin short hairs ca. 0.1–0.3 mm on rachises, costae, costules, veins, and tissue between veins, or blades nearly glabrous, sometimes also with resinous-glands on tissue between veins; sori medial to supramedial, with very small, tan, ciliate, sometimes resinousglandular indusia; sporangia glabrous; 2n=58 (Jam).A
Forma de vida
TerrestreA
Ejemplar revisado
(Related to the synonym Thelypteris sancta) Chis (Breedlove 47427, CAS; Martínez S. 8398, ARIZ, CHAPA, MEXU, MO, UAMIZ, 11302, 13715, 14825, MEXU).A
Elevación
200 – 300 mA
Ecología y Hábitat
Along streams.A
Tipo de vegetación
Selva altaA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
(In relation to the synonym) Thelypteris sancta is distinguished from congeners in Mexico by its small fronds (it is generally the smallest species of subg. Amauropelta in Mexico), inaequilateral pinnae, resinous glands between the veins abaxially, and small indusia. Of Mexican species, it is most closely related to T. resinifera, but the nearest relatives are several species in the Antilles.A