Parkerioideae

Parkerioideae
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	Polypodiophyta
Class:	Polypodiopsida
Order:	Polypodiales
Family:	Pteridaceae
Subfamily:	Parkerioideae Burnett
Genera[1]
Acrostichum Ceratopteris
Synonyms
Parkeriaceae Hook. Ceratopteridaceae Underw. Ceratopteridoideae R.M.Tryon

Parkerioideae, synonym Ceratopteridoideae, is one of the five subfamilies in the fern family Pteridaceae. It includes only the two genera Acrostichum and Ceratopteris.^[1][2] The following diagram shows a likely phylogenic relationship between the two Parkerioideae genera and the other Pteridaceae subfamilies.^[3]

Pteridaceae	Cryptogrammoideae Ceratopteridoideae Acrostichum Ceratopteris Pteridoideae Cheilanthoideae Vittarioideae

References

1. PPG I (2016). "A community-derived classification for extant lycophytes and ferns". Journal of Systematics and Evolution. 54 (6): 563–603. doi:10.1111/jse.12229. S2CID 39980610.
2. Maarten J. M. Christenhusz, Xian-Chun Zhang & Harald Schneider (2011). "A linear sequence of extant families and genera of lycophytes and ferns" (PDF). Phytotaxa. 19: 7–54. doi:10.11646/phytotaxa.19.1.2.
3. Schuettpelz & Pryer, 2008^{[permanent dead link‍]} Eric Schuettpelz & Kathleen M. Pryer: "Ch. 15. Fern phylogeny" in Biology and Evolution of Ferns and Lycophytes], ed. Tom A. Ranker and Christopher H. Haufler. Cambridge University Press (2008)