Flora of North America species comparison

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Asplenium monanthes

Scott's spleenwort, single-sorus spleenwort
Roots

not proliferous.
Stems

erect, unbranched;

scales black with lighter margins, linear-lanceolate, 3–6 × 0.4–0.8 mm, margins entire.
Leaves

monomorphic.
Petiole

reddish brown throughout, lustrous, 1–12(–20) cm, 1/3–1/10 length of blade;

indument of black filiform scales.
Blade

linear, 1-pinnate throughout, 5–25(–40) × 1–2.5(–3) cm, thick, glabrous;

base gradually tapered;

apex acute, not rooting.
Pinnae

in 10–40 pairs, oblong to quadrangular, somewhat asymmetric;

medial pinnae 4–15 × 2–5 mm;

base rounded to cuneate;

margins crenulate or ± entire;

apex obtuse.
Veins

free, obscure.
Sori

1(–3) per pinna, only on basiscopic side.
Spores

32 per sporangium.
Rachis

reddish brown throughout, lustrous, glabrous.
n

= 2n = 108 (apogamous).

Asplenium monanthes
Habitat Rock
Elevation 50–1000 m [160–3300 ft]
Distribution
map from FNA
AL; AZ; NC; SC; HI; Mexico; Central America; West Indies in Hispaniola; Jamaica; South America to n Argentina; Africa including Madagascar; Madeira; Réunion; Tristan da Cunha
[WildflowerSearch map]
[BONAP county map]
Parent taxa Aspleniaceae > Asplenium
Sibling taxa
A. abscissum, A. adiantum-nigrum, A. adulterinum, A. auritum, A. bradleyi, A. cristatum, A. dalhousiae, A. ebenoides, A. exiguum, A. heterochroum, A. montanum, A. palmeri, A. pinnatifidum, A. platyneuron, A. plenum, A. pumilum, A. resiliens, A. rhizophyllum, A. ruta-muraria, A. scolopendrium, A. septentrionale, A. serratum, A. trichomanes, A. trichomanes-dentatum, A. trichomanes-ramosum, A. verecundum, A. vespertinum, A. ×biscayneanum, A. ×curtissii, A. ×heteroresiliens
Name authority Linnaeus: Mant. Pl. 1: 130. (1767)
Source FNA vol. 2. Treatment authors: Warren H. Wagner Jr., Robbin C. Moran, Charles R. Werth.
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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