Ruderaliales Tedersoo ord. nov.

Type family.

Ruderaliaceae Tedersoo .

Diagnosis.

Distinguishable from other fungi based on a diagnostic nucleotide signature in LSU D 2 (positions 631–640 in the type species and 564–573 in S. cerevisiae acggatacgg; one mismatch allowed). Forms a monophyletic, least inclusive clade in Ruderaliomycetes, covering sequences EUK 1138161, EUK 1137899, EUK 0531800, EUK 1124460, EUK 1103744, EUK 1103025, EUK 1103555, EUK 1103599 and EUK 1203462 (Fig. 1).

Notes.

Recognized based on eDNA sequences only. Currently includes Ruderaliaceae and another potentially family-level group represented by sequences EUK 1103744, EUK 1103555, and EUK 1103599 (all forest soil in Puerto Rico) and EUK 1203462 (lake sediment in Croatia).