author
Best known as the credited collaborator on a classic early guide to North American mushrooms, this little-documented writer helped shape a book that mixed field identification, practical advice, and cooking notes for general readers.

by Robert K. Macadam, Charles McIlvaine
Robert K. Macadam is a largely obscure figure in print history, and reliable biographical details about his life are hard to confirm. What can be confirmed is his role as co-author or assistant on Toadstools, Mushrooms, Fungi, Edible and Poisonous; One Thousand American Fungi, a substantial mushroom guide published around 1900 and reissued in later editions.
Library and catalog records consistently connect him with Charles McIlvaine on that work, and some records also link him to mycological writing on the genus Russula in the Journal of Mycology in 1889. Taken together, those sources suggest he was involved in the practical study and description of fungi at a time when mushroom books were trying to reach both specialists and curious everyday readers.
Because so little verified personal information is readily available, the safest way to understand his legacy is through the work itself: a detailed, influential reference that helped introduce generations of readers to edible and poisonous mushrooms in North America.