Scientific Classification of Plants

1. Scientific Classification of Plants

2. Taxonomy • The science of classifying and identifying plants • Scientific names are used because the same common name is used for different plants in different areas of the world.

3. Karl von Linne • Swedish botanist that developed the binomial system of naming plants using two Latin words to indicate the genus and species. • Linne changed his name to the Latin name Carolus Linneaus.

4. Scientific Names • Latin is the language used for scientific classification. • The first word is the genus and the second word is the species. If there are additional words, they indicate a variety or cultivar. • Example: Acer palmatum • Japanese Maple

5. Genus vs. Species • Plants in the same genus have similar characteristics. • Plants in the same species consistently produce plants of the same type.

6. Scientific Classification • The broadest category of scientific classification is the Kingdom--either plant or animal. • The broadest category in the plant kingdom is division or phylum.

7. Divisions • The four most important divisions of the plant (Plantae) kingdom are: • Thallophites: algae, fungi, and lichens • Bryophytes: mosses • Pteridophytes: ferns • Spermatophytes: Seed bearing or flowering plants

8. Thallophytes

9. Bryophytes

10. Pteriophytes

11. Spermatophytes • Contains flowering or seed-bearing plants • Two subdivisions are: • Gymnosperms: Seeds are not in an ovary they are in a cone. • Angiosperms: Seeds are enclosed in an ovary (fruit), therefore flowering plants

12. Gymnosperms

13. Angiosperms

14. Angiosperms

15. Pinus-Pine Acer-Maple Ilex-Holly Ficus-fig Cornus-dogwood Rhododendron-rhododendron Quercus-oak Common Plant Genus