Our work on the Lecythidaceae would not have been possible without support from the LuEsther T. Mertz Library, the William and Lynda Steere Herbarium, the Pfizer Plant Research Laboratory, and the Cullman Program for Molecular Systematics of The New York Botanical Garden (NYBG). Together these divisions make NYBG one of the best places in the world to study systematic botany. Financial support for our studies of Lecythidaceae over the years has been provided by the Beneficia Foundation, the Eppley Foundation for Research, the Harriet Ford Dickenson Foundation, and the Andrew W. Mellon Foundation. The results of our research on Lecythidaceae has also benefited by four grants from the National Science Foundation: the most recent are ones from the Opportunities for Promoting Understanding through Synthesis and the Dimensions in Biodiversity programs. Another source of funds has come from the Fund for Neotropical Plant Research of NYBG; this fund, established by J. D. Mitchell and Mori in 1981, supported studies of Lecythidaceae and other neotropical plants to about 2000. Mori is grateful to John Mitchell for his contributions to the FNPR. We also thank Carol Gracie who organized the ecotour program of The Institute of Systematic Botany at NYBG from which we received funds for field work, student fellowships, and botanical art, among many other things. Individual support has come from our friends Gerhard Haas, Anne Hubbard, John D. Mitchell, Naomi Pitcairn, and Hazel Tuttle. We have been fortunate to have Bobbi Angell and Carol Gracie (as the artist and photographer, respectively) for the use of their images for our Lecythidaceae projects. Bobbi has prepared almost all of our illustrations of Lecythidaceae and Carol contributed many of her wonderful photographic images to our projects. Carol has also helped in countless other ways but especially as a wonderful field companion to her husband Scott Mori. We are grateful to Patricia Holmgren and Barbara Thiers, Director Emerita, and current Director of the Steere Herbarium, for all they have done to make our work easier. We thank Melissa Tulig for making it possible for us to produce a database-driven web site at The New York Botanical Garden and then facilitating the importation of data into Scratchpads. Mori thanks John Janovec, his former post-doc, for opening his eyes to the need to place the results of our work on Lecythidaceae onto the Internet. We are grateful to Don Black for his help in anatomical studies of Lecythidaceae, the late Carl de Zeeuw for his collaborative work on wood anatomy, and Cynthia Morton, Arne Anderberg, and Ya-Yi Huang for their contributions to molecular studies. Mori thanks Eileen Whalen for all the work that she has done typing labels and managing my collections from 1992 to 2011 and Amy Weiss for doing the same tasks since 2011, Ed Hecklau for carefully proofing these and other publications, and Carol Carollo for her incredible additions to these pages. Smith thanks the numerous individuals that have helped him while doing fieldwork in Brazil, including Maria Alice Neves, Domingos Cardoso, Mike Hopkins, Ricardo Perdiz, Alex Popovkin, and Luciano Paganucci de Queiroz. Finally, we are grateful to our collaborators in our studies of Lecythidaceae, Dr. Chih-Hua Tsou, Dr. Amy Berkov, Dr. Xavier Cornejo, Dr. Ya-Yi Huang, and Dr. G. T. Prance for all they have done to increase our knowledge of Lecythidaceae.