Differential interference contrast (DIC) light micrograph of Chrococcus sp. Chroococcus sp. (colour berry) is a cyanobacteria that is widely distributed in freshwater, less in saline waters. It is found in damp places such as moist soil, tree trunks, moist walls and rocks. The cells are single or united into spherical colonies, each containing a small number of cells surrounded by mucilage. Magnification: x650 when printed at 10 centimetres wide at its longest edge.