TL-2 (Taxonomic Literature, 2^nd edition) Online, created by IDC Publishers with support from the International Association for Plant Taxonomy (IAPT), is an impressive digitized resource and a welcome tool for plant taxonomists. The print resource Taxonomic Literature, 2^nd edition, is a standard reference list of plant taxonomic literature from 1753 to 1940, with special emphasis placed on the period from 1870 to 1914, a time of many achievements in the field. Frans A. Stafleu and Richard S. Cowan compiled the original seven-volume print set over the course of fifteen years (1973–1988); later Frans A. Stafleu and Erik Mennega added six supplements. The finished product resulted in approximately 10,000 pages, listing about 30,000 works. All authors who published at least three generic plant names during the covered time period were included. The compilers focused on books, pamphlets, and other bibliographically independent literature.