Mycologists have been working on the phylogeny of the fungus kingdom, and they have published a new Tree of Life for the kingdom. New names have appeared in biology textbooks. Here is an updated version of “Chapter 5, The Fungus Kingdom,” from the book, Kingdoms of Life Connected: A Teacher’s Guide to the Tree of Life. This update will be of special interest for those who have the book and want the next version of the fungus chapter. This revision shows the changes to the fungus Tree of Life and gives new names for major branches. The pronunciation guide will help you say the new names. There are updates to the “Coming of the Fungi” story, the background information for guides, and the list of books and websites. This publication is a pdf that you can print. 28 pages, black and white.