DENDROLOGY

Detailed explanation-1: -The first word of a scientific name of an organism indicates its genus and the second word indicates the species. By this method of binomial nomenclature, the scientific name of an organism has been made common all over the world.

Detailed explanation-2: -The generic name is the genus to which the species belongs, and the specific epithet refers to the species within that genus. For example, in the name Homo sapiens, Homo is the genus and sapiens is the specific epithet.

Detailed explanation-3: -A genus can have many species but the species name is very specific and cannot be used for different types of organisms. The name of the genus begins with capital letters whereas the name of species begins with small letters and both of them are written in italics.