Which of the following correctly describes the floral formula of the S...
The floral formula for the Solanaceae family typically includes the symbol ⊕ indicating actinomorphic flowers, followed by numbers in parentheses that denote united floral parts. Here, the formula '⊕ K5 C5 A5 G(2)' indicates five united sepals (K), five united petals (C), five epipetalous stamens (A), and a bicarpellary, syncarpous gynoecium with a superior ovary (G).
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Which of the following correctly describes the floral formula of the S...
Floral Formula of Solanaceae Family
The Solanaceae family, also known as the 'potato family', is characterized by specific floral structures. The correct floral formula is essential for identifying and classifying this family.
Understanding the Floral Formula
- ⊕: Indicates that the flower is actinomorphic (symmetrical).
- K5: Refers to the calyx, which consists of 5 fused or separate sepals.
- C5: Indicates the corolla made up of 5 petals, which may also be fused or separate.
- A5: Represents the five stamens present in the flower.
- G(2): Denotes the presence of a bicarpellary (two-carpel) ovary, which is superior.
Explanation of Option B
- Option B: ⊕ K5 C5 A5 G(2) is correct because:
- The actinomorphic nature of the flower allows for uniformity in petal arrangement.
- The 5 sepals (K5) and 5 petals (C5) are typical of many members in the Solanaceae family, including potatoes and tomatoes.
- The 5 stamens (A5) are consistently found in this family, contributing to their reproductive success.
- The bicarpellary ovary (G(2)) signifies a key reproductive characteristic of the family.
Importance in Botany
Understanding the floral formula helps in identifying and differentiating plants within the Solanaceae family, vital for studies in botany and agriculture, especially concerning crops like potatoes, tomatoes, and eggplants.