Asplenium lamprocaulon Fée
Descripción
Roots thin, wiry, fibrous, not proliferous; rhizomes shortcreeping to suberect; rhizome scales bicolorous, central portion black, margins lighter, clathrate, 2–3 X 0.8–1 mm, entire; fronds clumped, relatively few (3–5 per plant), 30–50 cm long; stipes castaneous, lustrous, 10–12 cm X 1–1.5 mm, 1⁄5–2⁄5 of frond length, glabrous, adaxially with narrow light brown wings 0.1– 0.2 mm; blades thick-herbaceous, 1-pinnate, pinnatifid at apices, not radicant or proliferous, 17–26 X 5–7 cm, the lowest pinnae slightly reduced and deflexed; rachises atropurpureous to black, lustrous, glabrous, adaxially with light brown wings 0.3 mm wide; pinnae trapezoidal, 12–25 pairs, 2–3(–4) X 0.7–1.5 cm, sessile, inequilateral, bases slightly auriculate, apices rounded to obtuse, margins crenulate; veins 1-forked, obscure, tips evident adaxially; indument abaxially of appressed clavate hairs ca. 0.1 mm long; sori to 4 on basiscopic sides, 0–3 on acroscopic sides; indusia 3–7 X 1 mm, margins subentire; spores not seen.A
Forma de vida
Terrestre, EpífitaA
Ejemplar revisado
Chis (Breedlove 21797, DS, ENCB, 31441, DS, MEXU, NY, 32757, 34451, DS, 66277, CAS; Ton 5393, CICY, ENCB, MEXU). Oax (Mickel 6051, NY; Wendt et al. 4909, CHAPA, NY).
Unverified, Doubtful, or Mistaken Reports. Méx (reported by Mickel & Beitel, 1988, but not verified; see comments below).
A
Unverified, Doubtful, or Mistaken Reports. Méx (reported by Mickel & Beitel, 1988, but not verified; see comments below).
A
Elevación
1500–2150 mA
Tipo de vegetación
Bosque de neblina/mesófiloA
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Discusión taxonómica
The dark stipes and relatively small number of large pinnae characterize this uncommon taxon in the A. monanthes group. Asplenium lamprocaulon is intermediate, in pinna number and size, between A. monanthes (large number of small pinnae) with A. obesum (small number of large pinnae).
Fisher 51 (US) and Fisher s.n. (MO), from Amecameca was identified as this species (by Maxon and by Adams), and is probably the source of the attribution of range to Edo. México, but the specimen is too incomplete for satisfactory identification; perhaps it is A. polyphyllum.
A
Fisher 51 (US) and Fisher s.n. (MO), from Amecameca was identified as this species (by Maxon and by Adams), and is probably the source of the attribution of range to Edo. México, but the specimen is too incomplete for satisfactory identification; perhaps it is A. polyphyllum.
A