Seed Plant Crossword

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Across
  1. 1. Description of the petal packing (aestivation) in Mimosoideae
  2. 3. The unit of the gynoecium
  3. 6. The distinctive pollen of the eudicots
  4. 10. The specialized seed-bearing branches of conifers
  5. 11. The sterile structure surrounding an ovule
  6. 12. A group that excludes some members of the most recent common ancestor
  7. 13. The unusual anatomy of C4 plants
  8. 16. Legume subfamily with pea flowers and concealed sexual organs
  9. 19. The special cotyledon of grasses
  10. 21. The secondary wood of cycads
  11. 23. The typical number of nuclei in an embryo sac
  12. 24. The combination of the 4 pollen grains of a spore mother cell
Down
  1. 2. The stellar arrangement of monocotyledons
  2. 4. The specialized pollen-bearing leaves of cycads and conifers
  3. 5. Where the male organs mature ahead of the females
  4. 7. Ovaries derived from the fusion of gynoecial units
  5. 8. Sticky glands attached to the pollen masses of orchids
  6. 9. Stalks of most flowers and of grass spikelets
  7. 14. Hygroscopic valves of the Caesalpinioideae and Mimosoideae
  8. 15. the inner bract of a grass floret
  9. 17. The unusual pollen of epacrids with only 1 functional grain
  10. 18. The actinomorphic daisy floret
  11. 20. Aggregated pollen masses of Orchidaceae
  12. 22. Single-seeded, indehiscent fruits of daisies