De Causis Plantarum, Volume III: Books 5-6Theophrastus of Eresus in Lesbos, born about 370 BCE, is the author of the most important botanical works that have survived from classical antiquity. He was in turn student, collaborator, and successor of Aristotle. Like his predecessor he was interested in all aspects of human knowledge and experience, especially natural science. His writings on plants form a counterpart to Aristotle's zoological works. In the Enquiry into Plants Theophrastus