Four genera Taeniophyllum, Euphorbia, Acacia and Lathyrus possess chlorophyllous tissues in various plant parts. Choose the corresponding plant parts.

Options

A. Leaf root, stem, sepals
B. Stem, petiole, root, leaf
C. Stem, root, sepals, petals
D. Root, stem, petiole, stipules

Answer

To answer the question regarding the four genera (Taeniophyllum, Euphorbia, Acacia, and Lathyrus) and the corresponding plant parts that possess chlorophyllous tissues, we can follow these steps:

### Step 1: Identify the Genera and Their Characteristics
- **Taeniophyllum**: This genus is known for having chlorophyllous roots. The roots are modified to perform photosynthesis.
- **Euphorbia**: In this genus, the stem is the part that contains chlorophyllous tissue. The stems are often fleshy and green, allowing them to photosynthesize.
- **Acacia**: The petiole of Acacia plants is chlorophyllous. The petiole is the stalk that attaches the leaf blade to the stem and can perform photosynthesis.
- **Lathyrus**: This genus has chlorophyllous stipules. Stipules are small leaf-like structures that are found at the base of the leaf stalk.

### Step 2: Match Each Genus with Its Corresponding Plant Part
- **Taeniophyllum**: Chlorophyllous root
- **Euphorbia**: Chlorophyllous stem
- **Acacia**: Chlorophyllous petiole
- **Lathyrus**: Chlorophyllous stipule

### Step 3: Select the Correct Option
From the descriptions above, we can see that the correct matching of plant parts with their respective genera is:
- **Taeniophyllum**: Root
- **Euphorbia**: Stem
- **Acacia**: Petiole
- **Lathyrus**: Stipule

Thus, the correct option that corresponds to these plant parts is:
- **Root, Stem, Petiole, Stipule** (Option D).

### Final Answer
The corresponding plant parts for the genera Taeniophyllum, Euphorbia, Acacia, and Lathyrus are:
- **Taeniophyllum**: Root
- **Euphorbia**: Stem
- **Acacia**: Petiole
- **Lathyrus**: Stipule

The correct option is **D: Root, Stem, Petiole, Stipule**.

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