1. Department Biologie I, Systematische Botanik und Mykologie, Ludwig-Maximilians-Universität München, München, Germany
2. Faculty of Resource Science & Technology, Universiti Malaysia Sarawak, Kota Samarahan, Malaysia
3. Harvard University Herbaria, Cambridge, MA, USA
4. Faculty of Sustainable Agriculture, Universiti Malaysia Sabah, Sandakan, Malaysia