Editing Chlorophyceae (section)

===Ultrastructure===
Cells of Chlorophyceae usually have two or four [[flagella]], but in some cases may have numerous flagella. The flagella emerge from the apex of the cell, and are connected to the nucleus via [[rhizoplast]]s.<ref name=Graham/> The arrangement of flagella may be in one of two configurations, termed CW ("clockwise") or DO ("directly opposed"). In the CW configuration, the [[basal bodies]] are arranged clockwise in the 1–7 o'clock position. In the DO configuration, the basal bodies are arranged in 12–6 o'clock. Taxa with the CW arrangement and DO arrangement correspond to two different [[clade]]s, roughly corresponding to the orders [[Chlamydomonadales]] and [[Sphaeropleales]], respectively.<ref>{{Cite journal|last=Lewis, Louise A. and Richard M. McCourt|date=2004-10-01|title=Green algae and the origin of land plants|url=https://bsapubs.onlinelibrary.wiley.com/doi/10.3732/ajb.91.10.1535|journal=American Journal of Botany|volume=91| issue = 10|pages=1535–1556| doi=10.3732/ajb.91.10.1535 | pmid=21652308 |bibcode=2004AmJB...91.1535L |via=onlinelibrary.wiley.com}}</ref>

A combination of [[ultrastructural]] features are characteristic of the Chlorophyceae. These include: closed [[mitosis]], the [[telophase]] spindle collapsing before [[cytokinesis]], and a system of [[microtubule]]s called a phycoplast running parallel to the plane of cytokinesis.<ref name=Graham/>

{{Gallery|title=Diversity of Chlorophyceae|align=center|
|File:Chlamydomonas globosa - 400x (13263097835).jpg
 |''Chlamydomonas globosa'' 400x
 |alt1=Light micrograph of Chlamydomonas globosa a round green, single cell 
|File:Volvox aureus.jpg
 |''[[Volvox aureus]]''
 |alt2=Light micrograph of Volvox aureus, a spherical colonial green algae with multiple dense inner colonies
|File: Pediastrum duplex phv.jpg
 |''Pediastrum duplex''
 |alt3=Light micrograph of Pediastrum duplex, a star-shaped colonial green alga 
}}