Difference between revisions of "Neurodium"

Fée

4: 201. 1850.

Common names: Ribbon ferns
Etymology: Greek neuron, nerve, and -ium, resemblance veinlets are embossed
Synonyms: Paltonium C. Presl
Treatment appears in FNA Volume 2.
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Revision as of 15:47, 18 September 2019

Plants epiphytic. Stems short-creeping, branched, 2–4 mm diam., not whitish pruinose; scales bicolored, lanceolate, somewhat clathrate, margins dentate. Leaves essentially monomorphic, tufted, narrowed toward apex, to 45 cm. Petiole articulate to stem, greenish, round in cross section, grooved at base. Blade linear to lanceolate-elliptic, simple, not glaucous, glabrous, margins entire. Veins obscure, in irregular areoles that are generally longer than wide and parallel to costa, included veinlets 1–2, simple or forked, free. Sori in nearly continuous, nearly marginal band (coenosorus) in distal 1/2 of blade, sometimes also with 1–3 separate oblong to circular sori proximally; indument filamentous. Spores minutely tuberculate. x = 37.

Distribution

Tropical, North America, Mexico, West Indies, Central America.

Discussion

Species 1 (1 in the flora).

Selected References

None.