Many Klebsormidium-species, a genus of filamentous charophyte green algae in the Klebsormidiophyceae class under the Charophyta division, are able to synthesize substances for UV protection.
Klebsormidium is a genus of filamentous charophyte green algae comprising 20 species. The Charophyta (/krft, krofat/) or charophytes (/krfats/) is a group of freshwater green algae, sometimes treated as a division, but also as a superdivision, or an unranked clade. Many Klebsormidium-species are able to synthesize substances for UV protection, the so-called mycosporine-like amino acids. Class: Klebsormidiophyceae Division: Charophyta 
