Asplenium pringlei Davenp.
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Authority
Mickel, John T. & Smith, Alan R. 2004. The pteridophytes of Mexico. Mem. New York Bot. Gard. 88: 1-1054.
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Family
Aspleniaceae
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Scientific Name
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Description
Species Description - Roots thin, wiry, not proliferous; rhizomes suberect to erect; rhizome scales dark brown to black, clathrate, ca. 3–4 x 0.3–0.4 mm, entire; fronds clumped, mostly 10–15 cm long; stipes dark brown to black, lustrous, 1.5–2.5 cm x 0.7–1 mm, ca. 1/10 of frond length, often curved at bases, sparsely scaly, adaxially with wings ca. 0.1 mm wide; blades chartaceous, mostly 8–13 x 1–1.5 cm, pinnate to pinnate-pinnatifid, linear, lacking buds, rachises black, lustrous, curved, nearly glabrous, adaxially with brownish wings 0.2 mm wide; pinnae oblong, 20–34 pairs, proximal and sometimes middle ones slightly deflexed, 4–5 x 1.5–3 mm, subsessile, rachis color not running onto the pinna stalks, slightly auriculate acroscopically, apices obtuse, incised 1/4–1/2 the way to the costae; veins obscure, tips evident adaxially; indument abaxially of scattered appressed, whitish to tan clavate hairs 0.1–0.2 mm long; sori 1–4 pairs per pinna, on both sides of midveins, submarginal on small lobes, 1 sorus per lobe; indusia 0.7–1.2 x 0.7–1.2 mm, margins entire, often incurved; spores reniform.
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Discussion
Type. Mexico. Jalisco: Near Guadalajara, Pringle 1837 (GH?; isotypes CAS!, DS!, NY!-4 sheets, US!, YU!).
This species is distinguished by its curved rachises, incised pinnae, and submarginal sori with large, entire indusia. It is closely related to A. sanchezii, A. fibrillosum, and A. blepharodes.
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Distribution
Epipetric on wet cliffs and mossy ledges; 1200– 2300 m; Mexico.
Mexico North America|