What special title does desmids are sometimes given?

Desmids are sometimes referred to as "the jewels of the pond" due to their intricate and beautiful shapes. They are single-celled algae that are found in freshwater environments around the world. Desmids are known for their unique and often symmetrical cellular structures, which can be quite complex and varied. The intricate patterns and shapes of desmids have fascinated scientists and nature enthusiasts for centuries, and they continue to be admired for their beauty and complexity.