Honorary distinction of the Founding Members of the Hellenic Botanical Society for the celebration of the 31 years after its foundation, with short presentations on their life and work, during the 12th HBS Conference, on September 29, 2011, in Rethimno.
- †Professor Konstantinos Mitrakos - presentation C. Thanos
- †Professor Konstantinos Anagnostidis - presentation A. Oikinomou-Amilli
- Emeritus Professor Dimitrios Phitos - presentation S. Kokkini
- Emeritus Professor Ioannis Tsekos - presentation E. Eleftheriou