Story of Chlorella
Chlorella is a fresh water, single-celled algae that grows in fresh water. Chlorella emerged over 2 billion years ago, and was the first form of a plant with a well-defined nucleus. Because Chlorella is a microscopic organism, it was not discovered until the late 19th century, deriving its name from the Greek, "chloros" meaning green and "ella" meaning small. In fact, that chlorella contains the highest amount of chlorophyll of any known plant.