Unicellular desmid with two rounded semicells with a relatively smooth outline, and supporting spines (cf. Cosmarium). The median constriction or isthmus between the semicells may be narrow or wide. Each semicell contains a green chloroplast.
Staurodesmus, Lake Rotoiti, X100. Photo: Thomas Wilding
![[Staurodesmus], Lake Rotoiti, X100. Photo: Thomas Wilding Image](/assets/Tools-And-Resources/Identification/algae/staurodesmus100__ScaleWidthWzEwMjRd.jpg)