Asplenium palmeri


Contr. U.S. Natl. Herb. 13: 39. 1909.

Common names: Palmer's spleenwort
Treatment appears in FNA Volume 2.

Roots not proliferous. Stems short-creeping, unbranched; scales black with lighter margins, linear-lanceolate, 1.5–3 × 0.1–0.4 mm, margins entire. Leaves monomorphic. Petiole purplish black, lustrous, 0.5–3 cm, 1/3–1/20 length of blade; indument of black filiform scales at base. Blade linear, 1-pinnate throughout, 7–17.5 × 0.9–1.8 cm, thick, glabrous; base gradually reduced; apex gradually reduced to whiplike rooting tip. Rachis purplish black throughout, lustrous, glabrous or nearly so. Pinnae in (12–)20–40 pairs, oblong; medial pinnae 6–9 × 3–4 mm; base broadly cuneate or auriculate; margins crenate-serrate; apex obtuse. Veins free, obscure. Sori 3–7 pairs per pinna, on both basiscopic and acroscopic sides. Spores 64 per sporangium.

Habitat: Shaded rocky slopes, wet ledges, often in protected places
Elevation: 900–2000(–2750) m


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Ariz., N.Mex., Tex., Mexico, Central America in Guatemala, Belize.


Selected References


Lower Taxa

... more about "Asplenium palmeri"
Warren H. Wagner Jr. +, Robbin C. Moran +  and Charles R. Werth +
Palmer's spleenwort +
Ariz. +, N.Mex. +, Tex. +, Mexico +, Central America in Guatemala +  and Belize. +
900–2000(–2750) m +
Shaded rocky slopes, wet ledges, often in protected places +
Contr. U.S. Natl. Herb. +
Asplenium palmeri +
Asplenium +
species +