Cantoromastix Tedersoo gen. nov.

Type species.

Cantoromastix holarctica Tedersoo .

Diagnosis.

Distinguishable from other fungi based on diagnostic nucleotide signatures in ITS 2 (positions 123–137 in type species ctagtcatctttaag; two mismatches allowed) and SSU 3 ’ end (positions 1796–1800 in S. cerevisiae and 5 bases of ITS: cattagctta; no mismatch allowed). Forms a monophyletic, least inclusive clade in Cantoromastigaceae, covering sequences EUK 1124338, EUK 0136917, and EUK 0017791 (Figs 1, 19).

Notes.

Recognized based on eDNA sequences only. Comprises 2–3 potential species represented by sequences EUK 0136917 (forest soil in Costa Rica) and EUK 0017791 (forest soil in Guadeloupe).