Colonial chlorophyte, cells spindle-shaped (pointed ends) or cigar-shaped (rounded ends) arranged in roughly parallel clusters of 4, within a mucilaginous envelope (may be difficult to see). Single parietal green chloroplast, pyrenoids usually absent.
Quadrigula, Lake Rotoiti, X640. Photo: Otago Regional Council & Manaaki Whenua
![[Quadrigula], Lake Rotoiti, X640. Photo: Otago Regional Council & Manaaki Whenua Image](/assets/Tools-And-Resources/Identification/algae/quadrigula640__ScaleWidthWzEwMjRd.jpg)