Scientific or Technical Names.

1.       All organisms do not occur in area.

2.       Many organisms occurring in a particular area have not been given common names because they are either microscopic or are unimportant to human affairs.

3.       Certain common names have no significance. Rather they are misleading, e,g., Love in a Mist, Hen and chicken For get me Not, Widow’s Tears Yesterday Today Tomorrow.

4.       Some common names have incorrect meaning e. g,. Silver Fish, Jelly Fish, Cuttle Fish, Star Fish,. They belong to different phyla and have no relationship with true fishes. Silver fish is not even aquatic.

5.       Common names cannot be used in communications amongst scientists of  even the different regions of same country because the same organisms has different local names in different parts. For example, Rose is called golab in Hindi, Golap in Banagla and  Rojapo in Tamil. Butterfly is titli in Hindi, Prajati in Bangla and vannathu poochi In Tamil.

6.       Sometimes a single organism is know by several names in the same language, E . g., Water Lily has 81 Dutch names, 44 French names and 15 English names. Likewise, Prickly Poppy has 8 Hindi names.

7.       Different regions can have opposing names Corn is Maize in Commonwealth countries while it implies wheat and other grains in U,S.A.

8.       A single name is often used for two or more species.  Toush me not is the names for both impatient balsamifera and Mimosa pudica. Dodhak is the name of many plants that possess milky latex e. g., Euphorbia, Sonchus, Launaed, etc.

9.       A wrong common name cannot be easily corrected.

Scientific or Technical Names.

 A scientific name is the one which is given by biologists and is understood to represent a particular organisms in every part of the world. Scientists ensure that a name being given by them had not been used earlier for any other organisms. The system of providing scientific and technical names is know as binomial nomenclature.

Binomial Nomenclature 

The system was developed by Linnaeus. The Technical names recognized internationally are ones given by Linnaeus in “Species Plan tarum” and the and the 10^th edition of his book Systema naturae”. Binomial nomenclature in the system of providing organisms with appropriate and distinct names consisting of two worlds. First generic and second specific. The first or generic world is also called genus. It is like a noun and its first letter is written in capital from. The secnd world or specific slither represents the species. It is like an adjective. Its first letter in small from except occasionally when it denotes a person or place. To the two word name is appended the name of taxonomist who discovered the organism and provided it with its scientific name, e. g., Ficus bengalensis L., Mangifera indca Linn., Homo sapiens Linnaeus. The name of taxonomist can be written in full or in abbreviated form. There are several technical names which have three word is generic, the second specific while the third word represents variety or subspecies. If the same scientific name is to be written time and again, the name of genus can be abbreviated, e, g,. F. bengalensis.