The history of fungal name indexing dates back to the early 19th century, with several notable compilations leading to the creation of Index Fungorum. One of the earliest comprehensive attempts was
Pier Andrea Saccardo's "Sylloge Fungorum" (1882–1931), which aimed to compile all known fungal names and their descriptions. In the 20th century,
Franz Petrak's "Lists" (1920–1939) continued this tradition, providing a comprehensive index of new fungal names and literature sources. In recent years, Index Fungorum has been transitioning from post-publication indexing to pre-publication registration. This shift aims to streamline the process of recording new fungal names and nomenclatural acts. As part of this transition, Index Fungorum is developing an automated registration-to-publication pipeline in collaboration with other major taxonomic name registries. The development of Index Fungorum can be traced through various institutional changes. It originated from efforts at the
Imperial Bureau of Mycology, established in 1920, which later became the
Commonwealth Mycological Institute in 1948. In 1986, it became part of
CAB International, eventually evolving into the current Index Fungorum project. As of 2016, plans were underway to move the Index Fungorum system to the
Royal Botanic Gardens, Kew, where it would operate alongside the
International Plant Names Index. This move is expected to facilitate closer integration between plant and fungal name registration systems. Since 1 January 2013, new fungal names must cite an
identifier issued by a recognized repository prior to publication, as mandated by the
International Code of Nomenclature for algae, fungi, and plants. This requirement has further solidified the importance of Index Fungorum and its counterparts in the field of fungal taxonomy. ==Content and scope==