Seeds of Ruellia tuberosa are disseminated by

Options

A. Censer mechanism
B. Parachute mechanism
C. Jaculator mechanism
D. Explosive mechanism

Answer

**Step-by-Step Solution:**

1. **Identify the Plant**: The question asks about the seed dispersal mechanism of Ruellia tuberosa. First, we need to recognize that Ruellia tuberosa is a flowering plant belonging to the family Acanthaceae.

2. **Understand Seed Dispersal Mechanisms**: There are various mechanisms by which seeds can be dispersed. Some of the common mechanisms include:
- Sensor mechanism
- Parachute mechanism
- Jaculator mechanism
- Explosive mechanism

3. **Examine Each Mechanism**:
- **Sensor Mechanism**: This is primarily found in the family Papaveraceae, where seeds are dispersed by wind influence. This does not apply to Ruellia tuberosa.
- **Parachute Mechanism**: Involves seeds with plumose hairs that catch the wind and disperse seeds. This mechanism is not characteristic of Ruellia tuberosa.
- **Jaculator Mechanism**: This mechanism involves a curved hoop at the base of the seed that opens with a jerk, effectively dispersing the seeds. This mechanism is associated with the Acanthaceae family, which includes Ruellia tuberosa.
- **Explosive Mechanism**: In this method, fruits explode when ripe to scatter seeds. This mechanism is not specific to Ruellia tuberosa.

4. **Determine the Correct Mechanism**: Since Ruellia tuberosa belongs to the Acanthaceae family, the jaculator mechanism is the correct method of seed dispersal for this plant.

5. **Final Answer**: The seeds of Ruellia tuberosa are disseminated by the jaculator mechanism.

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