Figure 1: Differential interference microscope image of Klebsormidium flaccidum strain NIES-2285.
From: Klebsormidium flaccidum genome reveals primary factors for plant terrestrial adaptation

K. flaccidum consists of non-branching long filamentous cells. Each cell contains a large chloroplast, which is positioned against the cell wall (parietal chloroplast) and contains a pyrenoid. Arrowhead indicates a pyrenoid surrounded by a few starch grains. Scale bar, 10 μm.