Basionym Name:Helicosporium diplosporum Ellis & Everh., Proc. Acad. nat. Sci. Philad. 43(1): 93 (1891)
Homotypic synonyms:Helicomyces diplosporus (Ellis & Everh.) Pound & Clem., Minn. bot. Stud. 1(Bulletin 9): 658 (1896)