Across
- 4. a sticky flammable organic substance, insoluble in water, exuded by some trees and other plants
- 5. coat- the protective outer coat of a seed.
- 6. division of vascular land plants containing a single extant class, Pinopsida
- 8. typically have a stout and woody trunk with a crown of large, hard and stiff, evergreen leaves. They usually have pinnate leaves. The individual plants are either all male or all female
- 9. a leaf that bears sporangia
- 10. a tough outer protective layer, especially that of an animal or plant
- 13. a plant or invertebrate animal) having the male and female reproductive organs in separate individuals
Down
- 1. a division of plants, grouped within the gymnosperms
- 2. a genus of highly unusual non-flowering plants.
- 3. embryonic plant enclosed in a protective outer covering
- 7. a plant that has seeds unprotected by an ovary or fruit. Gymnosperms include the conifers, cycads, and ginkgo
- 11. he central part of an ovule, containing the embryo sac.
- 12. grain- each of the microscopic particles, typically single cells, of which pollen is composed.