Sedimentomastix Tedersoo gen. nov.

Type species.

Sedimentomastix tueriensis Tedersoo .

Diagnosis.

Distinguishable from other fungi based on diagnostic nucleotide signatures in SSU V 9 (positions 1672–1686 in S. cerevisiae ggcctccggattgat; no mismatch allowed) and LSU D 2 (positions 524–538 in the type species and 460–474 in S. cerevisiae ttggtattttgggtg; two mismatches allowed). Forms a monophyletic, least inclusive clade in Sedimentomastigaceae, covering sequences EUK 0319782, EUK 0574067, EUK 0574066, EUK 1152060, and EUK 1191154 (Figs 1, 25).

Notes.

Recognized based on eDNA sequences only. Comprises 5–6 potential species represented by sequences EUK 1191154 (rotting algae in Estonia), EUK 0319721 (river sediment in Germany), EUK 0319782 (lake sediment in Estonia), EUK 0574066 (lake sediment in Tibet), and EUK 0574067 (river sediment in Brazil).