Jack, William (1795-1822), Sumatra, Rafflesia, Nepenthes, and Effective publication
Raja Ampat (Indonesia), Limestone, Biak, Endemic, Nepenthes, Critically endangered, Papua Barat (Indonesia), and Indonesia
International Congress on Plant Tissue and Cell Culture (7th : 1990 : Amsterdam, Netherlands), Mexico, Tropical Botanic Garden and Research Institute (Trivandrum, India), In vitro propagation, Nepenthes, In vitro culture, Royal Botanic Gardens, Kew, Micropropagation, National Botanic Garden of Belgium, and Cacti