''Pirsonia'' is a non

photosynthetic Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored in c ...

genus of

heterokont Heterokonts are a group of protists (formally referred to as Heterokonta, Heterokontae or Heterokontophyta). The group is a major line of eukaryotes. Most are algae, ranging from the giant multicellular kelp to the unicellular diatoms, which ...

s. It comprises the entirety of the family Pirsoniaceae, order Pirsoniida and class Pirsonea in the subphylum

Bigyromonada Bigyromonadea is a recently described non-photosynthetic lineage of Heterokont Heterokonts are a group of protists (formally referred to as Heterokonta, Heterokontae or Heterokontophyta). The group is a major line of eukaryotes. Most are al ...

, phylum

Gyrista Gyrista is a phylum of heterokont protists containing three diverse groups: the mostly photosynthetic Ochrophyta, the parasitic Pseudofungi, and the recently described group of nanoflagellates known as Bigyromonada. Members of this phylum are ch ...

Taxonomy

* Class Pirsonea Cavalier-Smith 2017 irsoniomycetes** Order Pirsoniales Cavalier-Smith 1998 irsoniida Cavalier-Smith & Chao 2006*** Family Pirsoniaceae Cavalier-Smith 1998 **** ''Pirsonia'' Schnepf, Debres & Elbrachter 1990 ***** '' P. diadema'' Kühn 1996 ***** '' P. eucampiae'' Kühn 1996 ***** '' P. formosa'' Kühn 1996 ***** '' P. guinardie'' Schnepf, Debres & Elbrachter 1990 ***** '' P. mucosa'' Kühn 1996 ***** '' P. punctigerae'' ***** '' P. verrucosa'' Kühn 1996

References

External links

{{Taxonbar, from=Q23070008 Heterokont genera Heterokonts