Complex sentence: John Kunkel Small assigned the species, as "Buxella brachycera", to a monotypic genus in 1933, but this was not widely accepted, and was rejected by other authors on the grounds of both nomenclatural and "phyletic unsoundness".
Split into simpler sentences: John Kunkel Small assigned the species, as "Buxella brachycera", to a monotypic genus in 1933. However, this was not widely accepted, and was rejected by other authors on the grounds of both nomenclatural and "phyletic unsoundness".