Synonymy:
Microthyrium microscopicum var. minus Speg., Revta Fac. Agron. Vet. Univ. nac. La Plata, Ser. 2 6(1): 105 (1910)

Microthyrium microscopicum var. majus Speg., Revta Fac. Agron. Vet. Univ. nac. La Plata, Ser. 2 6(1): 105 (1910)

Microthyrium microscopicum subsp. arctoalpinum Nograsek, Biblthca Mycol. 133: 148 (1990)

Position in classification:
Microthyrium, Microthyriaceae, Microthyriales, Incertae sedis, Dothideomycetes, Ascomycota, Fungi

Note:
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