Activity 1: Identify Vascular Tissues
On the following page (p2) is a representation of a Basswood Tree cross section, showing the different layers of vascular tissue. Using figure 1 from the lab module as a guide, label and color the following structures.LABEL:
Secondary Phloem XXXXXXXXXXSecondary Xylem XXXXXXXXXXVascular Cambium
COLOR:
Vascular Cambium: Yellow XXXXXXXXXXXylem Ray: Orange XXXXXXXXXXPhloem Ray: Green
Secondary Xylem: Red Secondary Phloem: Blue
Activity 2: Growth Rings, Early Wood, and Late Wood
Using figures 2 and 3 as a guide, label how many years of growth is present in the sketch, and identify early wood and late wood vessels on the Basswood stem representation on the following page.LABEL:
Year 1 XXXXXXXXXXYear 2 XXXXXXXXXXYear 3
Early Wood XXXXXXXXXXLate Wood
2 | Page
Activity 3: Identifying Universal Cross Sections
On the following page (p4) is a rendition of the three universal cross sections of angiosperm wood for you to label and color. Take your time as you work through this sheet. Be sure to complete the activities in order as you read through the module. This will help you to identify landmarks on each section of wood so that you can identify which section is which. It will also begin to help you identify the individual cells found in vascular tissues.
Identify the rays in each of the sections of wood and color them blue. These are the same rays you identified in Activity 1. Notice the unique direction and pattern the rays form in each of the three universal cross sections. STOP. Do not continue coloring until the next section.
Activity 4: Identifying Angiosperm Vascular Tissue Types
Return to the Angiosperm wood rendition (p4). Identify the vessel elements, tracheids, and fibers. Color them as instructed in the handout.
Activity 3-4Figure 3. Rendition of angiosperm wood, with all three universal cuts: transverse, radial, and tangential.
Rays: Blue XXXXXXXXXXVessel Elements: Yellow XXXXXXXXXXTracheids: Orange XXXXXXXXXXFibers: Red
Activity 5: Identifying Gymnosperm Vascular Tissue Types
Using the descriptions of the universal sections of wood, the cells types, and the distinguishing characteristics in Lab 5, Section II of the manual, label the cells and structures indicated in the figure. Use the words provided in the word box. Note: rays are labeled on all three surfaces. Transverse XXXXXXXXXXRadial XXXXXXXXXXTangential
Early XXXXXXXXXXLate
Ray (x3) XXXXXXXXXXResin Duct XXXXXXXXXXTracheid
Activity 6: Putting it All Togethe
Now that you have learned some of the characteristics for identifying cells and structures to differentiate between angiosperms and conifers, look at the prepared slides of the universal cross sections of Quercus (Angiosperm) and Pinus. Identify the transverse, radial, and tangential cross sections. In each cross section, you should label the rays, vessel elements (if present), tracheids, and resin ducts (if present). Determine the best magnification for your learning and draw and label each section.
Universal cross sections of Quercus (Angiosperm)
Transverse XXXXXXXXXXRadial XXXXXXXXXXTangential
Rays XXXXXXXXXXVessel Elements XXXXXXXXXXTracheid
____________________ Section
XXXXXXXXXX____________________ Section XXXXXXXXXX____________________ Section
Universal cross sections of Pinus (Gymnosperm)
Transverse XXXXXXXXXXRadial XXXXXXXXXXTangential
Rays XXXXXXXXXXResin Ducts XXXXXXXXXXTracheid
____________________ Section
XXXXXXXXXX____________________ Section XXXXXXXXXX____________________ Section
1
|
Page
Activity 1:
Identify Vascular Tissues
On the following page
(p2)
is a representation of a Basswood Tree cross section, showing the different
layers of vascular tissue. Using figure 1 from the lab module as a guide, label and color the following
structures.
Activity
2
:
Growth Rings, Early Wood, and Late Wood
U
sing
figure
s
2 and
3 as a guide,
label how many years of
growth
is present in the
s
ketch, and
identify
early wood
and
late wood vessels
on the Basswood
stem
eprese
ntation
on the
fol
l
owing page.
COLOR:
Vascular Cambium:
Yellow
Xylem Ray
:
Orange
Phloem Ray:
Green
Secondary Xylem:
Red
Secondary Phloem:
Blue
LABEL:
Secondary Phloem XXXXXXXXXXSecondary Xylem
Vascular Cambium
LABEL
:
Yea
1
Year 2
Year 3
Early Wood
Late Wood
1 | Page
Activity 1: Identify Vascular Tissues
On the following page (p2) is a representation of a Basswood Tree cross section, showing the different
layers of vascular tissue. Using figure 1 from the lab module as a guide, label and color the following
structures.
Activity 2: Growth Rings, Early Wood, and Late Wood
Using figures 2 and 3 as a guide, label how many years of growth is present in the sketch, and identify
early wood and late wood vessels on the Basswood stem representation on the following page.
COLOR:
Vascular Cambium: Yellow XXXXXXXXXXXylem Ray: Orange XXXXXXXXXXPhloem Ray: Green
Secondary Xylem: Red Secondary Phloem: Blue
LABEL:
Secondary Phloem XXXXXXXXXXSecondary Xylem XXXXXXXXXXVascular Cambium
LABEL:
Year 1 XXXXXXXXXXYear 2 XXXXXXXXXXYear 3
Early Wood XXXXXXXXXXLate Wood