Lindsaea arcuata Kunze
Descripción
Rhizomes short- to long-creeping, 2–3 mm diam.; rhizome scales lustrous dark brown, lanceolate, 1–2 X 0.3 mm; fronds 40–70 cm long; stipes ca. 1⁄2 the frond length, yellow-green to castaneous to atropurpureous, quadrangular in cross-section, glabrous; rachises at insertion of basal pinnae terete or slightly flattened abaxially; blades bipinnate; pinnae (1–)2–3(–5) pairs, segments arcuate, dimidiate, lacking midveins; sori 1–2 per segment; indusia continuous, 0.5 mm wide, margins entire; spores tetrahedral; 2n=ca. 168 (Oax), ca. 176 (Chis).A
Forma de vida
TerrestreA
Ejemplar revisado
Chis (Breedlove 31517, DS, NY; Castillo C. et al. 3810, XAL; Münch 7, DS, US; Rovirosa 963, PH). Oax (Hallberg 1554, NY; Hernández G. 2492, CHAPA, NY; Maya J. 2138, NY; Mickel 5698, 6695, NY; Rzedowski 30665, NY).A
Elevación
250 – 1500 mA
Tipo de vegetación
Selva alta, Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Lindsaea arcuata is distinct by its entire indusia and terete rachises at insertion of basal pinnae. Most Mexican collections have segments twice as long as wide whereas Central American specimens have segments 3–3.5 times as long as broad.A