Asplenium pulchellum Raddi
Descripción
Roots thin, fibrous, not proliferous; rhizomes erect; rhizome scales black, clathrate, 1.5–2 X 0.5–0.8 mm, entire; fronds clumped, 5–12(–18) cm; stipes green with narrow ridges, dull, 1–6 cm X 0.3–1 mm, 1⁄3 or less of frond length, glabrous or with sparse clavate hairs 0.3 mm long, adaxially with narrow wings. 0.1 mm wide; blades thin-chartaceous, 4–13(–22) X 1.5–3 cm, 1-pinnate, lanceolate, slightly narrowed proximally, apices pinnatifid, not proliferous; rachises green, with sparse, appressed, clavate hairs 0.3 mm long, adaxially with green wings 0.3 mm wide; pinnae oblong-rhombic, falcate, ascending, (5–)7–15 pairs, 0.8–1.8 X 0.4–0.8 cm, dimidiate, apices obtuse, toothed on acroscopic margins, sinuses 1 mm or less deep, basiscopic margins entire on proximal 3⁄4; veins forked acroscopically, simple basiscopically, tips evident adaxially; indument abaxially of scattered appressed, tan clavate hairs 0.1–0.2 mm long; sori 1–5 pairs per pinna, on both sides of midveins; indusia 3–5 X 0.5–0.8 mm, margins entire; spores reniform.A
Forma de vida
EpipetricA
Ejemplar revisado
Chis (Breedlove 39059, DS, NY, TEX). Oax (Hernández G. 1184, CHAPA, ENCB, MEXU, MO, NY, 1584, 1880, CHAPA, MEXU, MO, NY; Mickel 7394, NY, UC).Ver (Chazaro B. et al. 6137, XAL; Ibarra M. 2470, CHAPA, ENCB; Sinaca C. 905, IEB, MO).
Unverified, Doubtful, or Mistaken Reports. Tab (reported by Mickel & Beitel, 1988, but not verified and probably based on a misidentification; also reported by Magaña, 1992, as A. otites).
A
Unverified, Doubtful, or Mistaken Reports. Tab (reported by Mickel & Beitel, 1988, but not verified and probably based on a misidentification; also reported by Magaña, 1992, as A. otites).
A
Elevación
200–1000 mA
Ecología y Hábitat
On shaded limestone bluffs.A
Categoría IUCN
No incluidaC
Categoría NOM-059-SEMARNAT-2010
No incluidaD
Discusión taxonómica
Breedlove 39059 differs from other material seen in having larger fronds and reddish brown stipes and rachises, and lacking sharp teeth on the acroscopic pinna margins. Asplenium pulchellum can be confused with several 1-pinnate, green-stiped taxa, especially when these species are precociously fertile. Asplenium pulchellum differs from A. abscissum in smaller frond size (stipes 1–6 cm rather than 13–20 cm, blades usually 4–13 cm rather than 13–20 cm), shorter stipes relative to frond length (1⁄3 or less rather than 1⁄2 of frond length), smaller obtuse pinnae (0.8–1.8 cm long rather than 4.5–8 cm long and acuminate), simply serrate pinna margins (rather than biserrate), and 1-forked acroscopic veins (rather than 2-forked). From A. pteropus, A. pulchellum differs by smaller rhizome scales (1.5–2 mm vs. 6–9 mm long), narrow rachial wings, obtuse, smaller, and fewer pinnae (fewer than 10 vs. more than 30), forked acroscopic veins (vs. simple except for basal vein), and blades only slightly reduced proximally (vs. strongly tapering). Asplenium pulchellum is similar to A. hoffmannii in number of pinnae, rhizome scale size, stipe color and wings, and relative stipe length, but differs in the erect rhizomes, smaller pinnae with low serrations (sinuses 1 mm or less deep vs. 1–2 mm deep), narrower, more linear blades (vs. ovate), and entire (vs. suberose) indusia.
The relationship with A. otites Link, the type of which is a cultivated specimen of uncertain origin (holotype B, isotype BR, photo NY!), is unclear. Morton and Lellinger (1966: 26) circumscribed A. otites in the sense that A. pulchellum is applied here; in this they were followed by Smith (1985) and Mickel and Beitel (1988). According to Morton and Lellinger, A. otites differs from A. pulchellum primarily in its more numerous, often forking veins.
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The relationship with A. otites Link, the type of which is a cultivated specimen of uncertain origin (holotype B, isotype BR, photo NY!), is unclear. Morton and Lellinger (1966: 26) circumscribed A. otites in the sense that A. pulchellum is applied here; in this they were followed by Smith (1985) and Mickel and Beitel (1988). According to Morton and Lellinger, A. otites differs from A. pulchellum primarily in its more numerous, often forking veins.
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