The island of Java was a fascinating place for a Dutch-German named Franz Wilhelm Junghuhn. He studied the island and published some of the most important papers and books on Java’s geography and volcanology. Junghuhn (1809, Mansfeld, Germany; 1864, Lembang, Java) was a surgeon, and, after some adventurous years, became a naturalist who devoted himself entirely to the study of nature. His work that considered to be his biggest achievement in natural study of Java was the physiognomy description of landscape and related vegetation. He also made a concise geological, physiological, and palaeontological observation of Java’s plants. His plant geography (phytogeography) of Java is still valid today.