👉 The term "cleistogenous" refers to a phenomenon in which two or more different types of organisms coexist and interact with each other. This type of environment is often characterized by high levels of competition, where one organism dominates over another, but also by the presence of mutualistic relationships between species that benefit both. The concept of cleistogenesis is important in the field of biogeography, as it highlights how different types of organisms can coexist and interact with each other within a given habitat
