Hermann Edward Hasse

Hermann Edward Hasse (12 January 1836 – 29 October 1915) was an American lichenologist. He wrote two important texts and numerous articles in his field. Hassea, which is a genus of fungi in the class Dothideomycetes, and Lecidea hassei, a lichen that grows inside solid rock (endolithic lichen), were both named in his honor. He principally did his research in southern California. His correspondents included cryptogamic botanist William Gilson Farlow and lichenologist George Knox Merrill.