Geographic Subject
Germany
17
France
10
North America
5
Belgium
4
Great Britain
4
Italy
4
Paris
4
Denmark
3
England
2
Helgoland
2
Netherlands
2
Russia (Federation)
2
Sweden
2
Aberystwyth
1
Als
1
Ardennes
1
Austria
1
Botanischer Garten (Göttingen, Germany)
1
Brazil
1
Brussels (Region)
1
Bukovina (Romania and Ukraine)
1
California
1
Cambridge
1
Caprera Island
1
Copenhagen
1
Corsica
1
Dresden
1
Former Soviet republics
1
Frankfurt an der Oder
1
Germany (East)
1
Germany (West)
1
Glasgow
1
Gorenka
1
Göttingen
1
Hawaii
1
Helmstedt
1
Hortus Collinsonianus
1
Japan
1
Jardin des plantes (Montpellier, France)
1
Jena
1
Kärna
1
Leiden
1
Leipzig
1
London
1
Lusatia
1
Mayenne
1
Messina (Province)
1
Montpellier
1
North Sea
1
Pacific Coast
1
more ...