Abstract

The present article is the first to investigate in any detail the plant–animal analogies that are integral to Nehemiah Grew's Anatomy of Plants (1682). It focuses on three analogies that Grew used (either productively or critically) to produce novel accounts of vegetative processes: those between sperm and pollen, blood and sap, and mouths and roots. I suggest that Grew's analogical approach and specific mappings allowed him, on the one hand, to “see” plant features and functions that other botanists had overlooked, and, on the other, to determine when the analogies that other botanists deployed did not convincingly describe observable phenomena. On this basis, I argue, he was able to present what he, and several contemporaries, considered to be more accurate accounts of the nature of the vegetative parts and processes in question. More broadly, the article seeks to show that the analogical and observational were complementary aspects of Grew's method, and that, far from hindering his empirical endeavour, his analogies were crucial to it.