Flora of North America species comparison

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Diplazium lonchophyllum

Diplazie à feuilles allongées, lanceleaf twinsorus fern
Stems

ascending to erect;

scales dark brown, ovate to lanceolate, margins dentate.
Petiole

15–45 cm.
Blade

deltate-lanceolate, pinnate-pinnatifid, 20–36 × 8–22 cm, broadest at or just above base, acuminate at apex.
Pinnae

lanceolate-oblong, inequilateral, base cuneate basiscopically, truncate acroscopically, apex acuminate, lobed halfway or more toward costa;

basal acroscopic segments of basal pinnae free, margins serrate.
Veins

pinnate, lateral veins simple or sometimes forked.
Sori

elongate, straight, single or double, indusiate;

indusia vaulted, thin, erose.

Diplazium lonchophyllum
Habitat Moist wooded slopes
Elevation lowland; very rare; 0–100 m (lowland; very rare; 0–300 ft)
Distribution
from FNA
LA; Mexico; Central America; n South America
[BONAP county map]
Discussion

Central and South American species closely related to Diplazium lonchophyllum, including D. cristatum (Desrousseaux) Alston, D. drepanolobium A. R. Smith, and D. werckleanum H. Christ, are in need of monographic work (R. G. Stolze 1981; A. R. Smith 1981; J. T. Mickel and J. M. Beitel 1988).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 2.
Parent taxa Dryopteridaceae > Diplazium
Sibling taxa
D. esculentum, D. pycnocarpon
Name authority Kunze: Linnaea 13: 141. (1839)
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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