The Agaricales of Java and Bali is a biotic survey project designed to document the diversity, distribution and ecology of agarics and boletes (i.e., mushrooms) from the Malaysian Archipelago. This material is based upon work supported by the National Science Foundation under Grant No. 9705083. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation. In Indonesia, the project is conducted in cooperation with Lembaga Ilmu Pengetahuan Indonesia (LIPI - Indonesian Institute of Sciences) and Pusat Penelitian Dan Pengembangan Biologi (PPPB - Research and Development Centre for Biology). Our Indonesian sponsor and collaborator is Dr. Mien Rifai, Asst. Minister of State for Research and Technology Development. He is also the Principal Mycologist at Herbarium Bogoriense, Bogor, and author of numerous papers on Indonesian fungi.