Mickel, John T. & Smith, Alan R. 2004. The pteridophytes of Mexico. Mem. New York Bot. Gard. 88: 1-1054.
Diplaziopsidaceae
Species Description - Caudices to ca. 30 cm tall, 15 cm diam.; rhizome scales to 4 cm x 1 mm; stipes to 100 x 2 cm long, ca. 1/2 the frond length, bases somewhat scaly; blades 100–200 x 50–100 cm; pinnae opposite to subopposite, entire, sessile, often subcordate and overlapping the rachises, 25–55 x 6–12 cm, abruptly acuminate, bases cordate-clasping, laminae bright-green, succulent, papery and fragile on drying; indusia 15–30(–40) x 0.5–0.8 mm, entire; 2n=62 (Trin).
Asplenium marginatum L., Sp. Pl. 2: 1082. 1753. Asplenium limbatum Willd., Sp. Pl., ed. 4, 5(1): 310. 1810, nom. illeg. (based on Asplenium marginatum L.). Diplazium marginatum (L.) Diels in Engl. & Prantl, Nat. Pflanzenfam. 1(4): 229. 1899, hom. illeg., non Blume, 1828. Diplazium limbatum (Willd.) Proctor, Rhodora 68: 467. 1966. Lectotype (designated by Proctor, 1985: 390). Linnaeus cited Petiver, Pter. Amer., t. 12, f. 2, 1712, which is a redrawing of Plumier, Traite´ Foug. Ame´r., pl. 106, 1705, illustrating a plant probably from Martinique (Morne de la Calebasse), according to Proctor (1977). LINN 1250.20 is also this species.
Unverified, Doubtful, or Mistaken Reports. Ver (Acosta 3103-2d, CIB, XAL, cited by Palacios-Rios, 1992, but not verified). The only large 1-pinnate, entire-margined species of Diplazium with which Hemidictyum might be confused in Mexico are D. grandifolium and D. obscurum, and these are easily distinguished by their free venation.