Choose the mismatch from the following.

Options

A. Acropetal arrangement of sessile flowers - members of Graminae
B. Spadix with 3 kinds of flowers - Colocasia
C. Inflorescence with unisexual and bisexual flowers- Tridax
D. Flowers with different length of pedicels Allium cepa

Answer

To solve the question of identifying the mismatch from the provided options, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Understanding Acropetal Arrangement and Caesile Flowers**:
- Acropetal arrangement refers to the pattern where flowers or branches grow from the base to the top, with younger flowers at the top and older ones at the bottom.
- Caesile flowers are those that lack a stalk (pedicel) and are directly attached to the stem.
- The statement mentions that caesile flowers are members of the Graminaceae family (Poaceae), which is correct.
- **Conclusion**: This option is not a mismatch.

2. **Analyzing Spathes with Three Kinds of Flowers in Colocasia**:
- A spathe is a type of inflorescence that is often associated with a spadix, which is a thickened flower spike.
- Colocasia (commonly known as taro) does indeed have a spathe and can have male, female, and bisexual flowers.
- The description of the three types of flowers in Colocasia is correct.
- **Conclusion**: This option is not a mismatch.

3. **Evaluating Unisexual and Bisexual Flowers in Tridex**:
- Tridex is known to have both unisexual (male or female) and bisexual (having both male and female parts) flowers.
- The statement regarding Tridex having both types of flowers is accurate.
- **Conclusion**: This option is not a mismatch.

4. **Examining Flowers with Different Lengths of Pedicels**:
- The statement mentions flowers with different lengths of pedicels, which is true for mustard plants (Brassica species) where some flowers have shorter pedicels and others have longer ones.
- However, for onions (Allium cepa), the pedicels are typically of the same length.
- Therefore, the statement about flowers with different lengths of pedicels being associated with onions is incorrect.
- **Conclusion**: This option is a mismatch.

### Final Answer:
The mismatch is the option that states "flowers with different lengths of pedicels are found in Ilium Seba (onion)," as onion flowers typically have pedicels of the same length.

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