Asplenium palmeri

Maxon

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

Distribution

V2 346-distribution-map.gif

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

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Asplenium palmeri"
reduced +
Warren H. Wagner Jr. +, Robbin C. Moran +  and Charles R. Werth +
auriculate +  and cuneate +
reduced +
simple +  and 4-pinnate +
7 cm70 mm <br />0.07 m <br /> (17.5 cm175 mm <br />0.175 m <br />) +
thick;0.9cm;1.8cm +
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 +
monomorphic +
fertile +  and than sterile ones +
crenate-serrate +  and entire +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
perforate +, reticulate +, spiny +  and winged +
not articulate +
purplish black +
1/3 length of blade;1/20 length of blade +
c--shaped +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Contr. U.S. Natl. Herb. +
purplish black +
nearly +  and glabrous +
not proliferous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
filiform +  and linear-lanceolate +
0.1mm;0.4mm +
acroscopic +  and basiscopic +
less lunate;linear +
dorsiventral +  and symmetric +
Asplenium palmeri +
Asplenium +
species +
whip-like +
anastomosing +