1. Komunitas Cryptocoryne Indonesia, Raya Sawo Gg. III/33, Surabaya 60218, Indonesia
2. Oude Roswinkelerweg 72, NL-7822 AG Emmen, The Netherlands.
3. Department of Plant Science & Environmental Ecology, Faculty of Resource Science & Technology, Universiti Malaysia, Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia.
4. Section of Organismal Biology, Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark.