Closteriaceae
{{Short description|Family of algae}}
{{Automatic taxobox
| image = RIMG 4595p.jpg
| image_caption = Closterium sp.
| taxon = Closteriaceae
| subdivision_ranks = Genera
| subdivision =
}}
The Closteriaceae are one of four families of Charophyte green algae in the order Desmidiales (desmids).See the NCBI [https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=131211 webpage on Closteriaceae]. Data extracted from the {{cite web | url=http://ftp.ncbi.nih.gov/pub/taxonomy/ | title=NCBI taxonomy resources | publisher=National Center for Biotechnology Information | accessdate=2007-03-19}} It contains two genera, Closterium and Spinoclosterium.{{cite journal | doi=10.4490/algae.2013.28.1.001 | title=Taxonomy and nomenclature of the Conjugatophyceae (= Zygnematophyceae) | year=2013 | last1=Guiry | first1=Michael D. | journal=Algae | volume=28 | pages=1–29 | hdl=10379/11755 | hdl-access=free }}
Description
Closteriaceae consists of individual cells that are longer than wide. The cell shape ranges from straight to curved (lunate), with some species having cells curved only at the poles. The cell wall is hyaline or brownish in color, and may be covered with various ornamentation such as grooves, ribs, scores, and polar thickenings. Cells contain axial chloroplasts with several pyrenoids.{{cite journal | title=New records and rare taxa of Closterium and Spinoclosterium(Closteriaceae, Zygnematophyceae) to Bahia, Brazil | first1=Ivania B. |last1=Oliveira | first2=Carlos Eduardo de M. |last2= Bicudo |first3= & Carlos Wallace do N. | last3=Moura | date=2013 | journal= Iheringia, Série Botânica | volume=68 | issue=1 | pages=115–138 | url=https://isb.emnuvens.com.br/iheringia/article/view/43 }}