Diploblechnum
Diploblechnum is a genus of ferns in the family Blechnaceae, subfamily Blechnoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). The genus is accepted in a 2016 classification of the family Blechnaceae, but other sources sink it into a very broadly defined "Blechnum", equivalent to the whole of the PPG I subfamily. Species. , using the PPG I classification system, the "Checklist of Ferns and Lycophytes of the World" accepted the following species: