Rumohra Raddi, Opusc. Sci.

Kessler, Michael, Moran, Robbin C., Mickel, John T., Matos, Fernando B. & Smith, Alan R., 2018, Prodromus of a fern flora for Bolivia. XXXV. Dryopteridaceae, Phytotaxa 353 (1), pp. 448-450 : 448-450

Rumohra Raddi, Opusc. Sci. 3: 290. 1819.

Rumohra has long-creeping, dorsivental, densely scaly rhizomes with leaves borne in two rows; decompound, deltate, usually thick-textured blades; proximal pinnae more developed basiscopically; free veins; and peltate indusia. Hairs or scales on the blades are generally lacking, or the indument is reduced to scattered filiform scales abaxially. It is sister to Megalastrum , with the two in turn sister to Lastreopsis ( Schuettpelz & Pryer 2007, Labiak et al. 2014).

Rumohra has eight species and a circumaustral distribution in the Neotropics, southern Africa, Madagascar (four species), New Guinea, Australia, New Zealand, and some southern Pacific Islands. In the Neotropics, only R. adiantiformis is widespread; two other neotropical species are endemic to the Atlantic Rainforests of southeastern Brazil ( Sundue et al. 2013), and another is endemic to the Juan Fernández Islands ( R. berteroana (Colla) R.A.Rodr. ). Rumohra adiantiformis is one of the horticulturally most important fern genera, being cultivated en masse for the use of its long-lasting foliage in floral arrangements ( Thomas 1999).