The first part of the name – the generic name – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within the genus. For example, modern humans belong to the genus Homo and within this genus to the species Homo sapiens. Tyrannosaurus rex is likely the most widely known binomial. The formal introduction of this system of naming species is credited to Carl Linnaeus, effectively beginning with his work Species Plantarum in 1753. But as early as 1622, Gaspard Bauhin introduced in his book Pinax theatri botanici (English, Illustrated exposition of plants) containing many names of genera that were later adopted by Linnaeus. Binomial nomenclature was introduced in order to provide succinct, relatively stable and verifiable names that could be used and understood internationally, unlike common names which are usually different in every language.
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👉 Specific epithet in the context of Prunus armeniaca
Prunus armeniaca is the most commonly cultivated apricot species. The native range is somewhat uncertain due to its extensive prehistoric cultivation. Genetic studies indicate Central Asia is the center of origin. It is extensively cultivated in many countries and has escaped into the wild in many places.
The specific epithet armeniaca refers to the country of Armenia in Western Asia.
Specific epithet in the context of Trillium cernuum
Trillium cernuum is a species of flowering plant in the bunchflower family Melanthiaceae. The specific epithet cernuum means "drooping, curving forwards, facing downwards", a distinctive habit of its flower. It is commonly called nodding trillium or nodding wakerobin (not to be confused with Trillium flexipes) since the flower is invariably found nodding beneath the leaves. It is sometimes referred to as the northern nodding trillium to distinguish from Trillium rugelii, a similar nodding species native to the southern Appalachian Mountains. It is also called the whip-poor-will flower since presumably its bloom coincides with the spring arrival of the migrating bird with the same name.
Trillium cernuum was thought to be one of three species of Trillium described by Swedish botanist Carl Linnaeus in 1753 (the other two being Trillium erectum and Trillium sessile). The specimen examined by Linnaeus was actually Trillium catesbaei, a nodding species native to the southern Appalachian Mountains where Trillium cernuum does not occur. This oversight led to much confusion, some of which continues to this day. Within its natural range, Trillium cernuum is often confused with two closely related Trillium species, Trillium erectum and Trillium flexipes. The three species are known to interbreed with one another, which adds to the confusion.