Noun
marine and freshwater green or colorless flagellate organism
Source: WordNetEuglenophyte chloroplasts have a pyrenoid and thylakoids stacked in groups of three. Source: Internet
Euglenophyte chloroplasts have three membranes—it is thought that the membrane of the primary endosymbiont was lost, leaving the cyanobacterial membranes, and the secondary host's phagosomal membrane. Source: Internet