H.7.1. The name of a nothotaxon which is a hybrid between subdivisions of a genus is a combination of an epithet, which is a condensed formula formed in the same way as a nothogeneric name (Art. H.6.2), with the name of the genus.
Ex. 1. Ptilostemon nothosect. Platon Greuter (in
Boissiera 22: 159. 1973), comprising hybrids between Ptilostemon
sect. Platyrhaphium Greuter and Ptilostemon Cass.
sect. Ptilostemon; Ptilostemon nothosect. Plinia
Greuter (in Boissiera 22: 158. 1973), comprising hybrids between
Ptilostemon sect. Platy-rhaphium and P. sect.