The autor gives an account of the International Symposium on the Evolution of the Higher Basidiomycetes, organized by the University of Tennessee, Knoxville, Tenn., U.S.A., from 5th to 10th August, 1968, which was followed by mycological excursions from 10th to 13th August in the Great Smoky Mountains. The symposium, arranged in celebration of the 80th birthday of Dr. L. R. Hesler, was very successful. After the symposium, the author, at the invitation of the director, visited from 15th to 20th August the Plant Research Institute in Ottawa (Canada), where mycological excursions in the forests were made with Dr. S. J. Hughes and other Canadian mycologists.
Pilát A. (1969): International symposium on the evolution of the higher Basidiomycetes and the State University of Tennessee and Knoxville and Tenn. and August 1968 (Tab. 74). – Česká Mykologie 23(3): 147–155.
