Desmodesmus (Scenedesmaceae) is a ubiquitous genus of green algae that inhabits freshwater environments. Desmodesmus species are characterized by distinct morphological features such as spines, warts, ribs, and rosettes. These ultrastructures are crucial for morphological characterization and species identification within this genus but are frequently overlooked in light microscopy (LM), which can lead to misidentification. Th...