The genus Ophioderma are distinctive ferns (or fern-allies) in the family Ophioglossaceae. Ophioderma is closely related to, and sometimes treated as a subgenus of, the genus Ophioglossum. It includes the genus formerly known as Cheiroglossa. Recent genetic analysis has indicated that the two genera should be treated as one, and Ophioderma has precedence by being validly published at an earlier date. The type species is Ophioderma pendulum. Species , World Ferns listed the following species: Ophioderma falcatum (C.Presl) O.Deg. Ophioderma intermedium (Hook.) Nishida Ophioderma pendulum (L.) C.Presl Ophioderma redactophyllum Chantanaorr. & Li Bing Zhang Ophioderma simplex (Ridl. ex Bower) Nishida Ophioderma subsessile Amoroso & Coritico Notes References Hauk, Warren D., Clifford R. Parks and Mark W. Chasel. "Phylogenetic studies of Ophioglossaceae: evidence from rbcL and trnL-F plastid DNA sequences and morphology." Molecular Phylogenetics and Evolution, 28(1): 131-141. 2003. Ophioglossaceae Fern genera