Julien's even cooler crossword

2. Elongated cells in the xylem.
6. Small, green, heart-shaped structure of a fern.
7. Protuberances that extend from the lower epidermal cells of bryophytes and algae.
8. Symbiotic association between a green plant and a fungus.
10. These organisms are classified as a kingdom containing yeasts and moulds.
11. Outer layer of the skin.
12. Large, central, and dominant root.
15. Enlarged structures in some plant species used as storage organs for nutrients.
16. Reproductive structure found in flowering plants.
17. Receptacle in which asexual spores are formed.
18. Organ or cell in which gametes are formed in algae.
19. The seeds typically contain only one embryonic leaf.

1. Flowers and produces seeds enclosed within a carpel.
2. Water movement through a plant.
3. Consists of a relatively large, usually globe-shaped, underground bud.
4. A microscopic club-shaped spore-bearing structure produced by certain fungi.
5. Early stage of development of a multicellular organism.
9. Evolutionary change that occurs between pairs of species.
13. Organ of the gametophyte phase of certain plants, producing and containing the ovum.
14. Vascular tissue in charge of transport and distribution of the organic nutrients.