Which of the following characters of flowers cannot be represented in floral formula?
A. Sexuality of the flower
B. Symmetry of the flower
C. Number of floral organs in a whorl
D. Number of locules in the ovary
E. Cohesion of sepals
F. Type of aestivation

Options

A. A, B, C
B. D and F
C. D alone
D. A, C, E and F

Answer

To determine which character of flowers cannot be represented in a floral formula, we need to analyze each option provided in the question:

1. **Sexuality of the flower (A)**: The floral formula can represent whether a flower is bisexual, male, or female using specific symbols. Therefore, this character can be represented.

2. **Symmetry of the flower (B)**: The floral formula includes symbols to indicate the symmetry of the flower, such as a plus sign for actinomorphic (radial symmetry) and a percentage sign for zygomorphic (bilateral symmetry). Thus, this character can also be represented.

3. **Number of floral organs in a whorl (C)**: The floral formula explicitly denotes the number of sepals, petals, stamens, and carpels in their respective whorls. Therefore, this character can be represented.

4. **Number of locules in the ovary (D)**: The floral formula does not provide information about the number of locules (chambers) within the ovary. This information is not represented in the floral formula.

5. **Cohesion of sepals (E)**: The floral formula can indicate whether the sepals are free or fused by using brackets. Hence, this character can be represented.

6. **Type of aestivation (F)**: While the floral formula can denote the number of floral parts, it does not provide information about how these parts are arranged (overlapping or not) in terms of aestivation. Therefore, this character cannot be fully represented in the floral formula.

Based on this analysis, the characters that cannot be represented in the floral formula are **D (Number of locules in the ovary)** and **F (Type of aestivation)**. Since the question asks for one character, we can conclude that the answer is **D**.

### Final Answer:
**D. Number of locules in the ovary**