Lab 5: Plant Parts
Rachel Veenstra 
AGRON 220 Lab: Plant Parts
A worksheet to walk you through the fifth lab session
Task 1: Examine plants in the greenhouse to find matches for these leaf characteristics. More than one plant may fit each category, but only use each plant once!
Dicot Plants
Monocot Plants
Sheath: Hairy
Type: Simple
Type: Compound
Sheath: Hairless
Ligule: Present, large
Arrangement: Opposite
Arrangement: Alternate
Ligule: Present, small
Arrangement: Rosette
Ligule: Absent
Venation: Pinnate
Auricles: Present, long
Venation: Palmate
Auricles: Present, short
Venation: Parallel
Auricles: Absent
Type: Simple
Arrangement: Alternate
Venation: Palmate
Type: Simple
Type: Simple
Arrangement: Alternate
Arrangement: Opposite
Venation: Pinnate
Venation: Pinnate
Type: Pinnately Compound
Type: Palmately Compound
Arrangement: Opposite
Arrangement: Alternate
Venation: Pinnate
Venation: Palmate
Type: Pinnately Compound
Type: Simple
Arrangement: Alternate
Arrangement: Opposite
Venation: Pinnate
Venation: Palmate
Task 3: Take two designated plants from the greenhouse back to the classroom. Answer these questions about your plants. (You can take the plants apart and destroy them.)
Plant #1
Species:
Total Nodes:
Modified Stem?
(yes/no and type)
Root Type:
Plant #2
Species:
Total Nodes:
Modified Stem?
(yes/no and type)
Root Type:
Task 4: Match the modified stem examples with the crop that develops them.
Stolons
Rhizomes
white clover
wheat
johnsongrass
yellow nutsedge
buffalograss
tall fescue
bermudagrass
alfalfa
Crown
Tuber/Bulb
What is the difference between a rhizome and a stolon?
Task 5: Complete the following diagrams of monocot and dicot flowers. You can use colors, words, or arrows in your diagrams. Each term must be identified in at least one image.
ovary
anther
filament
style
ovule
sepal
glume
awn
lemma
petal
palea
stigma
stamen
pistil
floret
receptacle
The flower above is...
The flower above is...
Task 7: Dissect the flowers provided to your group. Answer the following questions.
How many total pistils did you find?
How many of your flowers had visible ovules?
How many of your flowers were likely insect-pollinated?
How many of your flowers were perfect (in the botanical sense)?
How many flowers were complete (in the botanical sense)?
Task 8: With your group, go through the botany and plant anatomy quiz questions on display.
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