A. Citrus and Ricinus have synandrous condition.
B. In epitepalous condition, the cohesion occurs between tepal and filament of stamen.
C. Tetradynamous condition consists of two long and four short stamen filaments.

Options

A. All are incorrect
B. Only A is incorrect
C. Only C is incorrect
D. Only B is incorrect.

Answer

To analyze the given statements about the morphology of flowering plants, we will evaluate each statement one by one and determine their correctness.

### Step-by-Step Solution:

1. **Statement A: Citrus and Ricinus have synandrous condition.**
- **Definition of Synandrous Condition:** Synandrous condition refers to the fusion of stamens, specifically where the anthers and filaments of the stamens are fused together.
- **Evaluation:** The example provided in the transcript indicates that the synandrous condition is characteristic of the Cucurbitaceae family (e.g., cucumbers, pumpkins), not Citrus (which belongs to the Rutaceae family) or Ricinus (which belongs to the Euphorbiaceae family). Therefore, this statement is **incorrect**.

2. **Statement B: In epipetalous condition, the cohesion occurs between tepal and filament of stamen.**
- **Definition of Epipetalous Condition:** In the epipetalous condition, the stamens are attached to the petals, not to the tepal.
- **Evaluation:** The statement incorrectly states that cohesion occurs between tepal and filament. Since epipetalous refers to the attachment of stamens to petals, this statement is also **incorrect**.

3. **Statement C: Tetradynamous condition consists of two long and four short stamen filaments.**
- **Definition of Tetradynamous Condition:** Tetradynamous condition is characterized by having four long stamens and two short stamens.
- **Evaluation:** The statement claims that it consists of two long and four short stamens, which is the opposite of the correct definition. Therefore, this statement is also **incorrect**.

### Conclusion:
All three statements (A, B, and C) are incorrect.

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