Across
- 2. The number of phyla of vascular plants
- 4. A gametophyte developed from only ONE type of spore
- 7. Male spores
- 8. Gymnosperm reproductive structures
- 9. Contain gametes
- 11. seed plants without flowers
- 13. These structures harbour spores
- 14. Include the largest and oldest vascular plants
Down
- 1. Possibly the closest living relatives of flowering plants
- 3. The most ancient of all extant seed plants
- 5. Female spores
- 6. The first plants to have evolved true roots
- 10. Produces different male and female gametophytes
- 12. Separate male and female plants
- 15. The most abundant group of seedless vascular plants