Leucospermum bolusii is a name that was used twice for different species. The first time was by
Michel Gandoger in 1901. Since this name was
validly published, used for a species that did not already have a name and the name had not already been used for another species, it is the
correct name. The list of
synonyms of
Leucospermum cordifolium includes
Leucospermum bolusii described by
Edwin Percy Phillips in 1910. This name however was already taken. So,
Leucospermum bolusii E.Phillips, 1910 is a later
homonym of
Leucospermum bolusii Gandoger, 1901. meaning that many authors misapplied the name
Cistus libanotis to the species
Cistus clusii thereby using this name differently from the original author,
Carl Linnaeus. The term can also be used geographically. For example, Looney (2013) considers "Auricularia polytricha sensu
auct. amer." (auctorum americae/americarum) to be a synonym of
Auricularia nigricans, meaning that only the use by American authors are treated in their work. "Auct. amer." is particular common compared to similar terms for other continents because the
New World has a lot of organisms that resemble described taxa in the Old World but may or may not be the same. ==See also==