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- Oleandra Cav., Anales Hist. Nat. 2: 115. 1799; Descr. Pl. (Cavanilles): 252. 1802. Lumbreras, Flora Montiber. 28: 19. 2004. Aspidium subg. Oleandra Splitg., Tijdschr. Natuurl. Gesch. Physiol. 7: 411. 1840. Type: Oleandra neriiformis Cav. (as “neriformis”).
- Ophiopteris Reinw., Syll. Pl. Nov. 2: 3. 1825. Type: Ophiopteris verticillata Reinw., = Oleandra neriiformis.
- Neuronia D.Don, Prodr. Fl. Nepal.: 6. 1825. Type: Neuronia asplenioides D.Don, =Oleandra wallichii.
Terrestrial, epilithic or epiphytic, creeping or scrambling ferns. Rhizome scaly, roots scattered, often with long rhizophore-like proximal parts, fronds scattered or in whorls, on stipe-like phyllopodia, dehiscing at a slightly thickened articulation point. Fronds stipitate, lamina simple, margin entire, veins distinct, somewhat raised on both sides, 1–2 × forked at or near the costa, costa often with narrow scales, lamina and veins often with acicular or capitate hairs. Sori in one, often irregular row on each side of the costa, with a more or less reniform, glabrous or hairy indusium. Sporangia stalked, stalk often with a number of sessile or stalked glands below the sporangium, sporangium body glabrous, spores monolete, perispore with broad wings, sometimes highly perforate, or echinate, massive.