Which of these properties of cassia is correct ?

Options

A. It has a zygomorphic flower and imbricate aestivation of petals
B. It has an actinomorphic flower and imbricate aestivation of petals
C. It has a zygomorphic flower and twisted aestivation of petals
D. It has an actinomorphic flower and twisted aestivation of petals

Answer

To determine the correct properties of Cassia, we can analyze the information provided step by step:

### Step 1: Identify the Family
- **Cassia belongs to the Fabaceae family.**
- The Fabaceae family is known for its legumes and is characterized by specific floral and fruit structures.

**Hint:** Remember that the family classification can give you clues about the plant's characteristics.

### Step 2: Understand Floral Symmetry
- **The floral formula of Cassia is Zygomorphic.**
- Zygomorphic flowers can be divided into two equal halves in only one plane, unlike actinomorphic flowers which can be divided in multiple planes.

**Hint:** Zygomorphic symmetry is a key feature in identifying certain flower types.

### Step 3: Determine Flower Structure
- **Cassia flowers are Bisexual.**
- This means that the flowers contain both male (androecium) and female (gynoecium) reproductive organs.

**Hint:** Bisexual flowers are important for reproduction as they can self-pollinate or cross-pollinate.

### Step 4: Analyze Floral Parts
- **Calyx is 5 (sepals), Corolla is 5 (petals), Androsium is 9 + 1 (stamens), and Gynosium is superior.**
- This indicates the number of each floral part, which is essential for understanding the structure of the flower.

**Hint:** Knowing the number of floral parts helps in identifying the plant and comparing it with others.

### Step 5: Examine Petal Arrangement
- **Petals are imbricate.**
- Imbricate estivation refers to petals overlapping each other in a specific arrangement, which is characteristic of Cassia.

**Hint:** Petal arrangement can help distinguish between different species within the same family.

### Conclusion
- Based on the analysis, the correct properties of Cassia are that it has zygomorphic flowers, is bisexual, has a calyx and corolla of 5, an androsium of 9 + 1, a superior gynosium, and exhibits imbricate petal arrangement.

**Final Answer:** The first option regarding the properties of Cassia is correct.

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