Tartumycetaceae Tedersoo fam. nov.

Type genus.

Tartumyces Tedersoo .

Diagnosis.

Distinguishable from other fungi based on diagnostic nucleotide signatures in ITS 2 (positions 173–187 in type species ggaaagcgtagtagg, two mismatches allowed) and LSU D 4 (positions 1439–1453 in type species and 1404–1418 in S. cerevisiae gatgccgcgtcgaac, one mismatch allowed). Forms a monophyletic, least inclusive clade in Tartumycetales, covering sequences EUK 1123648, EUK 1138300, EUK 1186160, EUK 1186168, and EUK 1186172 (Fig. 1).

Notes.

Recognized based on eDNA sequences only. Includes Tartumyces (gen. nov.) and several potentially genus-level taxa represented by sequences EUK 1186160 (forest soil in Dominica), EUK 1186168 (forest soil in Udmurtia), and EUK 1186172 (forest soil in Italy).