Pelazoneuron augescens (Link) A.R.Sm. & S.E.Fawc.
Descripción
Rhizomes creeping, 0.4–0.8 cm diam.; fronds (30–)65–140 cm, each with a ± distinct terminal pinna 5–17 X 3(–5) cm; stipes about as long as blades, 2–7(–9) mm diam., scaly at bases, the scales linear-lanceolate, castaneous, lustrous, setulose on the margins; blades coriaceous, generally 30–70 cm long; pinnae (4–)10–22(–28) X (0.3–)0.7–1.5 cm, incised 0.5–0.7 the way to the costae, proximal pinnae with basal segments slightly longer and narrower than more distal segments, basiscopic segment of distal pinnae adnate to rachises; segments subfalcate, the margins revolute; veins (3–)5–8(–10) pairs per segment, the proximal pair from adjacent segments connivent at the sinuses; indument abaxially of castaneous, setulose scales mostly 0.6–1 mm long along costae; also with hairs 0.2–0.4 mm long costae, costules, and tissue between veins, adaxially the blades glabrous except along costae, eglandular on both sides; sori medial, indusia with hairs 0.2–0.4 mm long, paraphyses absent; 2n=144 (Fla).A
Forma de vida
Rupícola, TerrestreA
Ejemplar revisado
(Related to the synonym Thelypteris augescens) QR (Cabrera 4536 et al., ENCB, MO, XAL, 16053, CAS; Calzada et al. 7100, XAL; Torres 529, 533, UAMIZ).A
Elevación
50 – 100 mA
Ecología y Hábitat
On limestone rocks in sun or partial shade.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
(In relation to the synonym Thelypteris augescens) Palacios-Rios (2002c) cited a hybrid between this species and T. kunthii from Quintana Roo: Palacios-Rios et al. 3669 (XAL); we have not seen this specimen. Hybrids between these same two species are known from southern Florida (Smith, 1971).A