Theophrastus (B.C. 370 -285)

He is considered to be the founder of botony because he was the first to invent botanical terms. He was a student of Plato and Aristotle. He observed the differences between monocotyledons and dicotyledons and the relationship between fruits and flowers.

He wrote over two hundred volumes of botanical work during his life. Only two of those works survive.

Historia de Plantis (History of Plants or Inquiring into Plants) – deals with plant descriptions.
De Causis Plantarums (The Causes of plants) – deals with plant physiology.