Tectaria fimbriata (Willd.) Proctor & Lourteig
Descripción
Rhizomes short-creeping to suberect, 1–3(–5) mm diam.; rhizome scales uniformly tan to brown, glabrous, 1–3 X 0.2–0.5 mm; fronds mostly 3–15 cm long; stipes stramineous, slender, 0.3–1mm diam., often longer (to 2.5 times) than blades, moderately to densely hairy, hairs 0.1–0.3 mm long; blades membranaceous, ovate to deltate, simple or broadly lobed to pinnatifid or with one free pair of proximal pinnae, 3–6(–10) X 1.5–3(–7) cm, cordate at bases; pinnae 0–1 lateral pair per blade, stalked to ca. 1 mm, to 4 X 2.5 cm, shallowly lobed on both sides, basiscopic lobes more pronounced; rachises (midribs) glabrescent to often moderately or densely hairy, buds absent; vein areoles mostly lacking included veinlets; indument of fine but dense hairs on blade margins, midribs, veins, and often laminae (between veins) abaxially, also on veins and laminae adaxially, hairs 0.1–0.3 mm long, septate; sori round, irregularly arranged between the principal lateral veins; indusia tan, thin, round-reniform, glabrous or sparsely hairy, each attached at a sinus; 2n=80 (Fla).A
Forma de vida
Epipétrica, TerrestreA
Ejemplar revisado
Yuc (Schott 780, MO, US–2 sheets, 2 localities, Cenote de Sta. Ana and Pozo de Guayma).A
Elevación
100 mA
Ecología y Hábitat
Sinkholes and shaded ledges, on limestone; low elevations.A
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
This species is easily distinguished from other Mexican tectarias by the relatively small, simple or merely lobed blades (rarely with one pair of free pinnae), narrow, short-creeping to suberect rhizomes 1–3 mm thick, and finely pubescent blades. It is primarily an Antillean species, rare on the continent.A