This maxi card and the lovely stamp on it was to commemorate the
XIV International Botanical Congress in Berlin in 1987. The Berlin Congress's motto was “The Forests of the Earth".
International
Botanical Congress (IBC) is an international meeting of
botanists in all scientific fields, authorized by the International
Association of Botanical and Mycological Societies (IABMS) and
held every six years, with the location rotating between different continents.
The current numbering system for the congresses starts from the year 1900; the
XVIII IBC was held in Melbourne, Australia, 24–30 July 2011, and the XIX IBC
will be held in Shenzen, China, 23–29 July 2017.
This
nice card was given to me by Maria.