Gymnosperm

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Across
  1. 2. coat the protective outer coat of a seed.
  2. 5. a tough outer protective layer, especially that of an animal or plant.
  3. 9. a sticky flammable organic substance
  4. 10. leaf that bears sporangia.
  5. 11. grain each of the microscopic particles, typically single cells, of which pollen is composed.
  6. 12. Cycads are seed plants with a long fossil history that were formerly more abundant and more diverse than they are today
  7. 13. division of vascular land plants containing a single extant class
Down
  1. 1. the central part of an ovule, containing the embryo sac.
  2. 3. having the male and female reproductive organs in separate individuals.
  3. 4. Ginkgo is a genus of highly unusual non-flowering plants.
  4. 6. division of plants, grouped within the gymnosperms
  5. 7. a plant that has seeds unprotected by an ovary or fruit.
  6. 8. embryonic plant enclosed in a protective outer covering