A revision of the genus Sphaerographium and the taxa assigned to Rhynchophoma (anamorphic Ascomycetes)
Verkley, Gerard J.M.
The genus Sphaerographium Sacc. is monographed, and the taxa described under the earlier refuted generic name Rhynchophoma are revised. Three species are accepted in Sphaerographium. The new combination Topospora raduloides is proposed for Rhynchophoma raduloides Sacc. & Scalia, for which a detailed description is given. Thirty excluded or insufficiently known taxa with names in Sphaerographium or Rhynchophoma are discussed. Ten of these names are reduced into synonymy with other taxa.