1. Department of Forest Genetics and Forest Tree Breeding; Georg-August University; Göttingen Germany
2. Research and Development Center for Environmental Quality and Laboratory
3. Biodiversity, Macroecology, and Biogeography Research Group; Georg-August University; Göttingen Germany
4. Botanical Garden of the University of Bern; Bern Switzerland
5. Bogor Botanical Garden; Lembaga Ilmu Pengetahuan Indonesia; Bogor Indonesia
6. Department of Silviculture; Bogor Agricultural University (IPB); Bogor Indonesia
7. University of Kassel; Kassel Germany