Question

Brassica campestris Linn
a. Give the common name of the plant.
b. What do the first two parts of the name denote?
c. Why are they written in italics?
d. What is the meaning of Linn written at the end of the name?

Answer 1

Common name
Mustard is the common name of Brassica campestris .

Denotation
Brassica denotes the genus and campestris denotes the specific epithet

Italicization.
Scientific names are italicized. Since Brassica campestris is the scientific name of mustard, it is italicized

Meaning of Linn
The name of the author appears after the specific epithet and is written in an abbreviated form, e.g., Brassica campestris Linn. It indicates that this species was first described by Linnaeus.