Acrostichum is a fern genus in the Ceratopteridoideae subfamily of the Pteridaceae.
Brongniart is the surname of a notable French family.
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after his ennoblement as Carl von LinnéBlunt (2004), p. 171.
Ceratopteridaceae is an improper family name for the clade that is now known to include the two genera Ceratopteris and Acrostichum.
Ceratopteridoideae is one of the five subfamilies in the Pteridaceae family of ferns.
Ceratopteris is the only genus among homosporous ferns that is exclusively aquatic.
Leptosporangiate ferns are the largest group of living ferns, including some 11000 species worldwide.
Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae.
The order Polypodiales encompasses the major lineages of polypod ferns, which comprise more than 80% of today's fern species.
Pteridaceae is a family of ferns in the order Polypodiales., including some 1150 known species in ca 45 genera (depending on taxonomic opinions), divided over five subfamilies.
The Pteridales are ferns that have their sori in linear strips under the edge of the leaf tissue, usually with the edge of the lamina reflexed over.
A pteridophyte is a vascular plant (with xylem and phloem) that disperses spores (and lacks seeds).