Basionym Name:Placodium microphthalmum Müll. Arg., Hedwigia 31: 155 (1892)
Homotypic synonyms:Acarospora microphthalma (Müll. Arg.) Hue, Nouv. Arch. Mus. Hist. Nat., Paris, 5 sér. 1(2): 162 (1909)Acarospora microphthalma var. microphthalma (Müll. Arg.) Hue, Nouv. Arch. Mus. Hist. Nat., Paris, 5 sér. 1(2): 162 (1909)