James Lauritz Reveal (born 1941) is a botanist, professor emeritus at the Norton Brown Herbarium, Maryland (see his cv).
He is perhaps best known for his work on suprageneric names, presented in an extensive website, which also presents material on plant taxonomy, including several systems of plant taxonomy (among which the Reveal system). However, he also has published extensively on the North American flora and he is a member of the Angiosperm Phylogeny Group (that is, he is a contributing author for APG II).