George Francis Atkinson was an American botanist and mycologist known for his extensive work in the study of fungi. He contributed significantly to the understanding of various mushroom species and their classifications, helping to advance the field of mycology in the late 19th and early 20th centuries. Atkinson was also a professor at Columbia University, where he taught botany and shared his knowledge with students. His research included the publication of several important papers and books, which remain valuable resources for those studying fungi and plant sciences.