Across
- 4. A tough outer protective layer
- 6. A leaf that bears sporangia
- 10. A palm like gymnosperms
- 11. Having the male and female reproductive organs borne on separate individuals of the same species
- 13. The central part of an ovule
Down
- 1. A division of vascular land plants containing a single class
- 2. A monotypic genus of highly unusual non-flowering plants
- 3. An embryonic plant enclosed in a protective outer covering
- 5. A division of plants, grouped within the gymnosperms
- 7. coat The protective outer coat of a seed.
- 8. grain A single granule of pollen.
- 9. A group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes
- 12. A sticky flammable organic substance, insoluble in water, exuded by some trees and other plants