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FNA | Family List | FNA Vol. 2 | Dryopteridaceae | Diplazium

2. Diplazium lonchophyllum Kunze, Linnaea. 13: 141. 1839.

Diplazie à feuilles allongées

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.

Moist wooded slopes; lowland; very rare; 0--100 m; La.; Mexico; Central America; n South America.

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).


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