In a floral formula,'$K$' and '$C$' stand for:

Select the correct option for the floral formula symbols.

What does the symbol $\oplus$ represent in floral morphology?

Given below are two statements:
Statement $I$: In a floral formula,$\oplus$ stands for zygomorphic nature of the flower,and $\underline{G}$ stands for inferior ovary.
Statement $II$: In a floral formula,$\oplus$ stands for actinomorphic nature of the flower,and $\underline{G}$ stands for superior ovary.
In the light of the above statements,choose the correct answer from the options given below:

...... is known as incomplete because in this subclass,the calyx and corolla are not distinct. The flowers usually have only a single whorl of perianth,which is sepaloid.

In angiosperms,characters of flowers are used in classification because