Family Ulvaceae is a group of green algae commonly found in marine environments. There are several synonyms for this family, including the Ulvophyceae, Ulvales, and Ulvacean. These terms are used interchangeably to refer to the same group of photosynthetic organisms that play a vital role in marine ecology. Members of the Ulvaceae family are characterized by their thin, flat, and ribbon-like thalli, which allow them to efficiently absorb sunlight for photosynthesis. They also serve as an important food source for marine herbivores and contribute to the overall health and productivity of coastal ecosystems. Whether referred to by their official name or any of their synonyms, the Ulvaceae family of green algae remains an essential component of our marine ecosystems.