Asplenium seileri C.D. Adams
Descripción
Roots thin, fibrous, not proliferous; rhizomes erect; rhizome scales dark brown to black, clathrate, 1.5–2.5(–3) X 0.4–0.7 mm, entire; fronds densely clumped, 15–20 cm long; stipes brownish, dull, 0.5–4 cm X 0.6–0.8 mm, 1⁄5 or less of frond length, narrowly green- or brown-winged to bases, glabrous or with sparse clavate hairs 0.3 mm long, wings to ca. 0.2 mm wide; blades thin-chartaceous, 12–18 X 1.5–2.5(–3) cm, 1-pinnate, linearelliptic, decidedly narrowed proximally, apices pinnatifid, nonproliferous or with small buds at the tips of blades; rachises greenish, dull, with sparse clavate hairs 0.3 mm long, adaxially with greenish wings 0.2–0.3 mm wide; pinnae oblong, spreading, falcate, 30–40 pairs, 0.8–1.5 X 0.4(–0.6) cm, dimidiate, apices obtuse, margins minutely crenulate acroscopically, sinuses mostly 0.5 mm or less deep, basiscopic margins entire in proximal 3⁄4; veins simple, tips evident adaxially; indument abaxially of scattered, tan, appressed, clavate hairs 0.1–0.2 mm long; sori 3–6 on acroscopic sides of pinnae, 2–4 on basiscopic sides; indusia 1.5–3 X 0.4–0.5 mm, margins entire; spores reniform.A
Forma de vida
Terrestre, EpífitaA
Ejemplar revisado
Chis (Croat 47144, MO, UC; Matuda 186bis, US). Adams (in Davidse et al., 1995: 319) discussed an epipetric specimen from Chiapas, Breedlove 42513, MEXU, as this species.A
Elevación
1700 mA
Tipo de vegetación
Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Discusión taxonómica
This species is most similar to A. pulchellum, but differs from that in the more numerous pinnae (ca. 30–40 pairs) and the minutely crenulate pinna margins. In Mexico, it is known from a collection from Mt. Ovando and another from Volcán Tacaná. The Matuda collection was cited by Smith (1981: 55) as possibly representing an undescribed species. Matuda 186 (MEXU p.p., US), from Pasital, seems to be A. potosinum, vel aff. The Croat collection cited bears small buds at the tips of some blades.A
Bibliografía
C. Maiz-Tome, L. 2016: Brasenia schreberi. – The IUCN Red List of threatened species 2016: e.T185681A78457027. http://doi.org/10.2305/IUCN.UK.2016-1.RLTS.T185681A78457027.en.