In 1991, botanist John L. Strother was reviewing the classification of North American sunflowers when he identified a new genus. By this time his 100-page monograph was in the final stages of proofing, and adding a new entry in the middle would require troublesome changes in the layout.
The genera were listed alphabetically, and the last one was Zexmenia. So Strother named the new genus Zyzyxia. Since this placed the new entry near the end of the article, it minimized the necessary changes, and the editor accepted the addition.