Download Plant Classification Notes

WARM UP
“Do not look back and ask why, look
forward and ask, why not?”
1. Write two or three sentences about
what this means to you.
Plant Classification
Biology II
Taxonomy - Science of Classification
• Grouping based on
similarity
(more similar groups
as you work down)
– Kingdom
• Phylum
– Class
» Order
• Family
• Genus
• Species
Phyla of Plants (Basic Similarities)
• Bryophytes
– Nonvascular
– Spores
– Mosses
Phyla of Plants (Basic Similarities)
• Ferns
– Vascular
– Spores
– Whisk ferns
Club mosses
Horsetails
Ferns
Phyla of Plants (Basic Similarities)
• Gymnosperms
– Vascular
– Seeds
• Cones
– Conifers
Cycads
Gingko
Gnetophytes
Phyla of Plants (Basic Similarities)
• Angiosperms
– Vascular
– Seeds
• Flowers
Dichotomous Keys
• Step by step
identification
guide
• Choose one of
two traits at
each step
– Doublets
– Need to know
traits/terms
Dichotomous
Keys
Plant Traits and Terms (for keys)
Coniferous: Needles, evergreen
Deciduous: Broadleaf
Plant Traits and Terms (for keys)
• Branch Organization
– Needles
• Single
• Clustered
Plant Traits and Terms (for keys)
• Branch Organization
– Leaves
• Alternate
Whorled
Opposite
Plant Traits and Terms (for keys)
• Deciduous leaf type
– Simple leaf
• One per bud
– Compound leaf
• Many “leaflets”, one
bud
– Pinnate (long)
– Palmate (like fingers)
Plant Traits and Terms (for keys)
• Leaf Shape
Plant Traits and Terms (for keys)
• Leaf Edge
– Entire
– Toothed
– Rounded
– Lobed
Binomial Nomenclature
• After keying or dividing taxa, you need to
name each unique thing
• Organisms named with genus and species
– Ursus americanus
– Developed by Carolus Linnaeus
WRAP UP
• List 3 categories you could
use to key out the
different types of shoes in
the classroom.
WARM UP
1. Name at least 6 different types of
plants.
WRAP UP
• Define taxonomy in five words or less.
• Compare and contrast mosses and ferns.