The Polystomellaceae are a family of fungi with an uncertain taxonomic placement in the class Dothideomycetes.

GBIF lists the following accepted genera;

• Coscinopeltis (1)
• Dermatodothella Viégas, 1944 (1)
• Dothidella Speg., 1880 (36)
• Dothithyriella F.von Höhnel, 1918 (1)
• Marchalia P.A.Saccardo, 1889 (1)
• Munkiella Spegazzini, 1885 (1)
• Parastigmatea Doidge, 1921 (7)
• Pluriporus F.Stevens & R.W.Ryan (1)
• Polystomella (6)

Note: Figures in brackets = how many species per genus

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