Professor Andrzej Piotr Grzywacz Dr. h. c. mult.

Professor Andrzej P. Grzywacz was born on July 10, 1943, in Toruń, where he completed primary and secondary schooling. During the years 1961–1966, he studied at the Faculty of Forestry of the Warsaw University of Life Sciences (SGGW). His interest in mushrooms was evident since then through his choice of specialization and the title of his master’s thesis Grzyby nadrzewne w Leśnictwach Wiartel i Zielone (Puszcza Piska) [Arboreal fungi in the Wiartel and Zielone forest subdistricts (Puszcza Piska Forest)], which he carried out under the supervision of Prof. Jerzy Ważny. Aerwards, he worked in the State Forests in the Forest Districts Smolniki (now Iława) and Olek (now Toruń). In 1972 he completed his doctoral studies (1969–1972) under the supervision of Prof. Jerzy Ważny at the Faculty of Forestry, Warsaw University of Life Sciences (SGGW), and he defended his doctoral dissertationWpływ przemysłowych zanieczyszczeń powietrza na niektóre patogeniczne grzyby drzew leśnych [e influence of industrial air pollution on selected pathogenic fungi of forest trees]. In 1979, Andrzej Grzywacz was awarded the degree of doctor habilitatus in forest sciences on the basis of his output and the monograph entitledMechanizm odporności nasion Pinus sylvestris L. na pasożytniczą zgorzel przedwschodową [Mechanism of resistance of Pinus sylvestris L. seeds to parasitic pre-emergence damping-off]. He started his journey as an associate professor in 1988 and was awarded the title of full professor in 1995. In 1998, he was elected as a corresponding member, and in 2007, as a full member of the Polish Academy of Sciences. Professor Grzywacz was conferred the title of doctor honoris causa by the August Cieszkowski University of Agriculture (now Poznań University of Life Sciences) (2008), the University of Agriculture in Kraków (2014), and the Wrocław University of Environmental and Life Sciences (2017). From 1969 until his retirement, Prof. A. Grzywacz worked at the Faculty of Forestry of the Warsaw University of Life Sciences. From 1980 to 2012, he served as the head of the Laboratory and later as the head of the Department of Mycology and Forest Phytopathology of the SGGW, which was established on his initiative. He was vice