Typification of Tuber formosanum (Tuberaceae, Pezizales, Ascomycota) from Taiwan, China

When Hu described Tuber formosanum in 1992 as a new species based on collections from Dung-Pu, Nantou County, Taiwan, he neglected to designate a type, so that the name was not validly published. The current authors re-describe, illustrate, and validate T. formosanum based on a type selected from recent collections from the same region. Tuber formosanum is closely related to the indicum complex but differs in morphological, phylogenetic, and other respects and should be treated as a separate taxon.