Select correctly matched pair/pairs :-
(a) Pteriodophyta – Lycopodium, Dryopteris
(b) Gymnosperms – Ephedra, Gnetum
(c) Bryophyta – Porella, Riccia

Options

A. Only a
B. Only a & c
C. Only b & c
D. All a, b & c

Answer

To determine the correctly matched pairs from the given options, we will analyze each pair one by one.

### Step 1: Analyze the first pair - Pteridophyta – Lycopodium, Dryopteris
- **Pteridophyta** refers to a group of vascular plants that reproduce via spores and do not produce seeds.
- **Lycopodium** is indeed a genus of clubmosses, which are part of Pteridophyta.
- **Dryopteris** is a genus of ferns and also belongs to Pteridophyta.
- Therefore, both examples (Lycopodium and Dryopteris) are correctly matched with Pteridophyta.

### Step 2: Analyze the second pair - Gymnosperms – Ephedra, Gnetum
- **Gymnosperms** are seed-producing plants that do not form flowers or fruits.
- **Ephedra** is a genus of gymnosperms, known for its jointed stems and scale-like leaves.
- **Gnetum** is also a genus of gymnosperms, which are tropical and often have broad leaves.
- Hence, both examples (Ephedra and Gnetum) are correctly matched with Gymnosperms.

### Step 3: Analyze the third pair - Bryophyta – Porella, Riccia
- **Bryophyta** refers to non-vascular plants commonly known as mosses and liverworts.
- **Porella** is a genus of liverworts, which is part of Bryophyta.
- **Riccia** is also a genus of liverworts and belongs to Bryophyta.
- Thus, both examples (Porella and Riccia) are correctly matched with Bryophyta.

### Conclusion
After analyzing all three pairs, we find that:
- (a) Pteridophyta – Lycopodium, Dryopteris is correct.
- (b) Gymnosperms – Ephedra, Gnetum is correct.
- (c) Bryophyta – Porella, Riccia is correct.

Therefore, the answer is that all pairs (A, B, and C) are correctly matched.

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