Principles of visual key construction―with a visual identification key to the Fagaceae of the southeastern United States


BACKGROUND AND AIMS Advances in digital imaging have made possible the creation of completely visual keys. By a visual key we mean a key based primarily on images, and that contains a minimal amount of text. Characters in visual keys are visually, not verbally defined. In this paper we create the first primarily visual key to a group of taxa, in this case… (More)
DOI: 10.1093/aobpla/plr005


2 Figures and Tables