Asplenium virillae Christ
Descripción
Roots thin, fibrous, not proliferous; rhizomes erect; rhizome scales 2–3 X 0.4–0.5 mm; fronds clumped, 4–12 cm long; stipes darkened at bases, stramineous to greenish distally, dull, 1–6 cm X 0.3–0.8 mm, 1⁄3–1⁄2 of frond length, glabrous, not or obscurely alate adaxially; blades herbaceous, with (1–)2–5 pairs of lateral pinnae, stalked 1–2 mm, terminal segments broadly hastatedeltate; rachises greenish, dull, glabrous, lacking wings or these to ca. 0.1 mm wide; pinnae oblong, 1–5 pairs, 1–2 X 0.6–1 cm, less than 2 times longer than wide, sessile or stalked to 2 mm, obtuse at apices, margins entire to dentate to weakly lobed acroscopically, entire or nearly so basiscopically; veins mostly 1-forked, readily visible on both sides, tips prominent and expanded adaxially; indument abaxially of scattered, tan, appressed clavate hairs 0.1 mm long; sori 2–5 pairs per pinna, on both sides of midveins; indusia tan, 2–4 mm, margins entire; spores reniform.A
Forma de vida
Terrestre or epipetricA
Ejemplar revisado
Chis (Breedlove 21798, 25070, DS, 56943, CAS).A
Elevación
1350–1800 mA
Tipo de vegetación
Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Discusión taxonómica
This species is difficult to distinguish from small, precociously fertile plants of A. abscissum (which see). Asplenium virillae differs by the smaller fronds with fewer pinnae and lateral pinnae rounded or slightly oblong (vs. rhombic, more acute or acuminate at the tips, and more strongly inequilateral in A. abscissum). In addition, specimens of A. virillae seem to dry a much darker green. Both species often occur on wet rocks, and both can become fertile at very small size, the fertile fronds sometimes less than 5 cm long.A