What is the meaning of Nominotypical?

Of a subspecies: nominate, having a name which repeats the species name, designating that it represents the originally described population.

Of a subgenus or other infrageneric taxon: having a name which repeats the genus name, indicating that it includes the type species. For older botanical subgeneric and sectional names, it is sometimes prefixed with Eu-.

Source: wiktionary.org