Kingdom Chlorobionta Jeffrey, 1982 see [unranked] Chloroplastida S.M. Adl et al., 2005 Division Charophyta Migula (1889) - charophyte algae and embryophytes see charophytes Class Zygnemophyceae - conjugates see Class Zygnematophyceae C.Hoek, D.G.Mann & H.M. Jahns (1995), nom. inval. Order Desmidiales - placoderm desmids