Which of the following cannot be determined by observing a floral diagram?
A
Aestivation of calyx and corolla
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B
Position of ovary on the thalamus
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C
Placentation
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D
Symmetry of flower
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Solution
The correct option is B
Position of ovary on the thalamus
Floral diagrams are stylized cross sections of flowers that represent the floral whorls as viewed from above. Rather like floral formulas, floral diagrams are used to show symmetry, numbers of parts, the relationships of the parts to one another, and degree of connation and/or adnation. Such diagrams cannot easily show ovary position.