Some
definitions
Leaves – definition and
structure.
What is a leaf?
When is a leaf not a leaf?
Plant Anatomy:
Some technical words
Parts of a leaf
Names for Leaf shape
Names for leaf edges
Veins of leaves
Demonstrating leaf shape
Apiacaea leaves
Lamiaceae family
Asteraceae family
Hairy and Smooth
Lets look at flowers
Anatomy and function,
using our four families as examples.
Rose Family
Celery family
Anatomy of a flower
Celery family (more!)
Ray florets
Mint family
Anatomy of mint flowers
Pollination
Daisy family
Capitulums
Anatomy of Capitulums
Important plant structures:
Transportation.
Plant tissues that transport
useful things.
Vascular Tissues
Tissues are specialised groups
cells that perform a function.
Xylem and Phloem are two
types of tissue that transport
liquids and nutrients around a
plant.
Cross section of a stem
Comparison
Phloem
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Transports food
(sugars) and nutrients
(proteins)
Two-directional
Present in roots, stem
and leaves
Living tissue
Not star shaped in
cross section
Xylem
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Transports water and
minerals from the roots.
One direction –up!
Present in root, stem
and leaves
Once mature is hollow
Star shaped cross
section
Xylem and Phloem
Microscope image
Congratulations!
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You have now seen how a plant germinates
from seed.
You have seen images of cotyledons, leaves
and leaf anatomy, leaf shapes, leaf edges,
hirsute and glabrous, even leaf veining!
You have seen different kinds of flowers, and
their basic anatomy.
You have seen how plants transport water
and nutrients.
Now you can observe these anatomical parts
in any plant you choose to study!