Roger Heim, born February 12, 1900, Paris, died September 17, 1979, was a French botanist specialising in mycology and tropical
phytopathology. He was known for his studies describing the anatomy of the mushroom hymenium, the systematics and phylogeny
of higher fungi, the mycology of tropical fungi such as Termitomyces, as well as ethnomycological work on hallucinogenic fungi,
like Psilocybe and Stropharia.