Across
- 4. A single granule of pollen.
- 7. A division of plants, grouped within the gymnosperms.
- 8. The central cellular mass of the body of the ovule, containing the embryo sac.
- 9. A vascular plant having seeds that are not enclosed in an ovary; a conifer or cycad.
- 10. A division of gymnosperms comprising plants with leaves and habit similar to those of palm trees, although some species are quite small.
- 12. The fertilized, matured ovule of a flowering plant, containing an embryo or rudimentary plant.
- 13. Any of a class of nonvolatile, solid or semisolid organic substances, as copal or mastic, that consist of amorphous mixtures of carboxylic acids and are obtained directly from certain plants as exudations or prepared by polymerization of simple molecules: used in medicine and in the making of varnishes and plastics.
Down
- 1. The outer integument of a seed.
- 2. A natural covering.
- 3. A group of gymnospermous plants of particular interest to paleobotanists.
- 5. A division of vascular land plants containing a single extant class.
- 6. A modified leaf that bears sporangia.
- 11. Having the male and female organs in separate and distinct individuals; having separate sexes.