Asplenium rutaceum (Willd.) Mett.
Descripción
Roots fibrous, not proliferous; rhizomes erect; rhizome scales black, strongly clathrate, 3–4 X 0.3–0.8 mm, entire; fronds clumped, mostly 20–45 cm long; stipes castaneous to atropurpureous, lustrous, 1–3 cm long, to 1⁄10 of frond length, with appressed clavate hairs 0.1–0.2mmlong, adaxially with brownish wings 0.1 mm wide; blades thin-herbaceous, 15–35 X 4–10(–15) cm, 3-pinnate, elliptical, gradually tapered both proximally and distally, apices elongate, naked, proliferous; rachises castaneous to atropurpureous, lustrous, glabrous or with scattered appressed clavate hairs 0.1 mm long, adaxially with wings 0.1–0.3 mm wide; pinnae narrowly deltate, somewhat falcate, 10–24 pairs, 2.5–9 X 1–2.5 cm, sometimes ending in naked flagelliform apices, sessile, usually 2-pinnate, proximal pinnules essentially opposite, perpendicular to and overlapping rachises, ultimate segments elliptic or obovate, mostly 3–5 X 1–1.5 mm, bases cuneate, apices acute, margins entire, segments towards apices of pinnae slightly falcate and sometime slightly gibbous on indusia-bearing side; veins solitary in the ultimate segments, tips readily evident adaxially; indument abaxially of appressed clavate hairs 0.1–0.2 mm long; sori 1 per ultimate segment; indusia 1.5–2.5 X 0.3–0.6 mm, margins minutely erose; spores reniform.A
Forma de vida
Terrestre or occasionally epipetric or epiphyticA
Ejemplar revisado
Chis (Breedlove 29807, DS, 32199, DS, MEXU, 38934, DS; Ghiesbreght 382, K, PH). Oax (Mickel 941, US, 5655, NY, UC, 6549, MEXU, NY, UC; Rzedowski 34077, IEB). Ver (Lira 217, MEXU, XAL; Ramírez 782, 848, XAL).A
Elevación
600–1800 mA
Tipo de vegetación
Selva alta, Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Discusión taxonómica
The atropurpureous lustrous stipes and rachises, 3-pinnate blades, proliferous and flagelliform blade apices, and slightly gibbous sorus-bearing segments distinguish this species from the similarly dissected A. cristatum and A. myriophyllum, which are probably not closely related.A