Basionym Name:Acarospora reagens Zahlbr., Beih. Botan. Centralbl., Abt. B 13: 162 (1902)
Homotypic synonyms:Acarospora nodulosa var. reagens (Zahlbr.) Clauzade & Cl. Roux, Bull. Mus. Hist. Nat. Marseille 41: 61 (1981)