Family Podostemaceae is placed under the series :

Options

A. Multiovulatae aquaticae
B. Microembryeae
C. Daphnales
D. Unisexuales

Answer

To determine the series under which the family Podostemaceae is placed, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Family Characteristics**:
- The Podostemaceae family consists of aquatic herbs.
- They are characterized by having multiple ovules, which means they produce many seeds.

2. **Understand the Placentation**:
- The ovules in Podostemaceae are arranged in an axillary manner, meaning they are attached to the ovary wall.

3. **Evaluate the Given Options**:
- **Option 1: Multi ovulate aquaticae** - This option describes aquatic plants that have multiple ovules, which aligns with the characteristics of Podostemaceae.
- **Option 2: Microembryo** - This option refers to plants with very small embryos, which does not specifically relate to Podostemaceae.
- **Option 3: Daphnia** - This refers to a different group of aquatic organisms, not directly related to the characteristics of Podostemaceae.
- **Option 4: Unisexuals** - This refers to plants that are either male or female, which does not apply to Podostemaceae.

4. **Select the Correct Option**:
- Based on the characteristics of Podostemaceae and the evaluation of the options, the correct answer is **Option 1: Multi ovulate aquaticae**.

### Final Answer:
The family Podostemaceae is placed under the series **Multi ovulate aquaticae**.

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