1. University of Vienna, Faculty Centre of Biodiversity; Department of Structural and Functional Botany; Rennweg 14 1030 Vienna Austria
2. Royal Botanic Garden Edinburgh; 20A Inverleith Row, Edinburgh EH3 5LR Scotland U.K.
3. Forest Research Institute Malaysia; 52109 Kepong, Selangor Malaysia
4. Bangkok Herbarium, Princess Sirindhorn Herbarium Building; Plant Variety Protection Division; Department of Agriculture; Chatuchak, Bangkok 10900 Thailand
5. Guangxi Institute of Botany; Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences; Guilin 541006 China