植物的科学分类英文版

Genus vs. Species
• Plants in the same genus have similar characteristics. • Plants in the same species consistently produce plants of the same type.
Scientific Classification
Scientific Classification of Plants
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.
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.
• The broadest category of scientific classification is the Kingdom-either plant or animal. • The broadest category in the plant kingdom is division or phylum.
Diversity: The Spice of Life
Thallophytes
Bryophytes
Pteriophytes
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
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.
Divisions
• The four most important divisions of the plant (Plantae) kingdom are:
– Thallophites: algae, fungi, and lichens – Bryophytes: mosses – Pteridophytes: ferns – Spermatophytes
Gymnosperms
Angiosperms
Fra Baidu bibliotek
Angiosperms
Common Plant Genus
• Pinus-Pine • Acer-Maple • Ilex-Holly • Ficus-fig • Cornus-dogwood • Rhododendronrhododendron
• Quercus-oak