The article is focused on the works of one of the most outstanding Russian geobotanics, A.N. Krasnov. A special attention is paid to one of his most interesting ideas concerning the so-called geographical combinations, which influenced dramatically the further development of the studies of geographical landscape and zone. The authors of the article analyze the main works of A.N. Krasnov devoted to the describing and characterization of landscape areas and zones, not only of Russia, but of the entire world.
