Question

Based on the number of coharts, arrange the following series in the descending order.

• A. Thalamiflorae $\to$ Disciflorae $\to$ Heteromerae $\to$ Calyciflorae
• B. Thalamiflorae $\to$ Calyciflorae $\to$ Heteromerae $\to$ Disciflorae
• C. Calyciflorae $\to$ Thalamiflorae $\to$ Disciflorae $\to$ Heteromerae
• D. Thalamiflorae $\to$ Calyciflorae $\to$ Disciflorae $\to$ Heteromerae

Hint:

Higher number of floral parts → Thalamiflorae.
Disciflorae → floral parts arranged on disc.
Heteromerae → unequal number of petals or whorls.
Calyciflorae → parts fused and reduced.

Answer 1

The Correct Option is A

Cohorts in flowers indicate the number of whorls in a flower. Thalamiflorae have numerous free floral parts (highest number of coharts), followed by Disciflorae, Heteromerae, and Calyciflorae (least number). Therefore, the descending order based on number of coharts is option (1).