Which one of the following is related type

Options

A. Catkin and hypanthodium
B. Raceme and cyathium
C. Corymb and umbel
D. Verticillaster and spikes

Answer

To solve the question "Which one of the following is related type?" we need to analyze the options given and identify which pair is related based on their inflorescence type. Here's a step-by-step breakdown of the solution:

### Step 1: Understand the Options
We have four pairs of terms to evaluate:
1. Katkin and Ahipotandium
2. Rhesum and Scythium
3. Corium and Umbel
4. Verticillaster and Spikes

### Step 2: Analyze Each Pair
- **Katkin and Ahipotandium**: Research shows that these two do not share a common inflorescence type or botanical relationship.

- **Rhesum and Scythium**: Similarly, these two do not exhibit a related inflorescence type.

- **Corium and Umbel**: Both of these terms refer to types of racemose inflorescence. A corium is an unbranched indeterminate inflorescence that is flat-topped or convex, while an umbel has a short axis with multiple floral pedicels of equal length arising from a common point.

- **Verticillaster and Spikes**: These two also do not share a related inflorescence type.

### Step 3: Identify the Related Pair
From the analysis, it is clear that **Corium and Umbel** are related because they both represent types of racemose inflorescence.

### Step 4: Conclusion
The correct answer to the question is **Option C: Corium and Umbel**.

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