Lomaridium C.Presl, Abh. Königl. Böhm. Ges. Wiss.

Smith, Alan R. & Kessler, Michael, 2018, Prodromus of a fern flora for Bolivia. XXXIII. Blechnaceae, Phytotaxa 334 (2), pp. 99-117 : 108

Lomaridium C.Presl, Abh. Königl. Böhm. Ges. Wiss. , ser. 5, 6: 514–515. 1851.

Lomaridium is characterized by having dimorphic leaves, long-creeping rhizomes, generally hemiepiphytic habit, and bicolorous, long-lanceolate, sparsely to densely denticulate rhizome scales. Several species, e.g., L. ensiforme and L. fragile , are often found as hemiepiphytes on tree fern trunks. The genus has a largely austral distribution and includes about 15 total species, eight in the Neotropics, six in Africa and Madagascar, and one in Australasia ( Gasper et al. 2016).

The four Bolivian species are separated by elevation but have broadly overlapping distributions; where two or three co-occur, they may occasionally hybridize with each other. Such intermediate specimens may not be identifiable with certainty. The most common base chromosome number in the genus is x = 32, reported in three species.