👉 Epicordulia is a type of bacterium that produces large, multi-cellular colonies in the presence of oxygen. These colonies are called "epicorps" and can grow as large as 100 microns in diameter. The colony formation process involves the production of a complex metabolic system that utilizes the oxygen available in the environment. This symbiotic relationship between bacteria and their host has been crucial for the survival and growth of many microorganisms on Earth's surface.