1. Photomicrographs
Plant Tissues

2. BOTANY




Algae
Cladophora species
Filament in form
Several cells

3. BOTANY



Algae
Acetabularia
species
Many cells

4. BOTANY


Algae
Oedogonium
species

5. BOTANY


Algae
Spirogyra species

6. BOTANY



Spirogyra species
Filamentous algae
Conjugation
(sexual
reproduction)
Phase contrast photo

7. BOTANY





Algae
Spirogyra species
Filament in form
Spores: union of 2
cells
Bridge

8. BOTANY


Algae
filament

9. BOTANY



Algae
Chara species
Many cells

10. BOTANY



Algae
Chlamydomonas sp.
One cell

11. BOTANY



Algae
Euglena gracilis
One cell with
flagella

12. BOTANY




Algae
Oscillatoria species
Filament in form
Series of cells

13. BOTANY



Algae
Ulothrix species
Many cells in
filament

14. BOTANY




Algae
Volvox species
Hundreds of cells
in hollow sphere
Cells have flagella
Spirogyra species

15. BOTANY



Green algae
Pediastrum species
Group of cells

16. BOTANY



Oscillatoria species
Algae
Many cells

17. BOTANY
ANGIOSPERMS
ROOTS

18. BOTANY






ANGIOSPERMS
Dicot root
Cross section
Center of root
Xylem form “X”
Phloem at tip of
xylem

19. BOTANY



Salix root, x.s.
Low magnification
Vascular bundle

20. BOTANY



Ranunculus root,
x.s.
Low magnification
Vascular bundle

21. BOTANY
ANGIOSPERMS
STEMS

22. BOTANY




ANGIOSPERMS
Stem
Arrangement of
bundles
Low magnification

23. BOTANY





ANGIOSPERMS
Bundle in stem
Phloem (top)
Cambium (middle)
Xylem (bottom)
(which is interior)

24. BOTANY




ANGIOSPERMS
Growth ring
(xylem)
Tilia stem
Basswood tree

25. BOTANY





ANGIOSPERMS
Coleus stem
Cross section of
bundle
Xylem -- inside
Phloem -- outside

26. BOTANY


Medicago stem,
x.s.
Vascular bundles
in ring

27. BOTANY


Soft
tissue


ANGIOSPERMS
Stem, composite
Cross section
Low magnification

28. BOTANY




ANGIOSPERMS
Cells in stem
Thickened xylem
Cross section

29. BOTANY


Bamboo stem
Cross section

30. BOTANY





ANGIOSPERMS
Xylem cells in
stem
Longitudinal
section
Annular rings (left)
Spiral rings (right)
Rings reinforce the cell wall.

31. BOTANY


Tilia, 3-year stem,
x.s.
Bark

32. BOTANY

Tilia stem, 3-year,
x.s.

33. BOTANY
ANGIOSPERMS
LEAF

34. BOTANY




Castalia leaf
Cross section
Floating water
plant
Air spaces

35. BOTANY




Begonia leaf
Cross section
Air space
Guard cells
(stomata)

36. BOTANY



ANGIOSPERMS
Leaf
Surface view
Low magnification
(about 50X)
Notice the
chloroplasts

37. BOTANY

Mangrove leaf,
x.s.
Low magnification

Phase contrast photo


38. BOTANY




Mangrove leaf, x.s.
Through central vein
Phloem
Xylem
Phase contrast photo

39. BOTANY


Mangrove leaf,
x.s.
Section through
small vein
Phase contrast photo

40. BOTANY


Syringa leaf, x.s.
Low magnification

41. BOTANY


Zea mays leaf,
x.s.
Leaf vein

42. BOTANY

Oleander leaf, x.s.
Pit to reduce water
loss

Phase contrast photo


43. BOTANY

Elodea meristem
(rapidly dividing cell region)

Longitudinal
section, l.s.

44. BOTANY
ANGIOSPERMS
FLOWER

45. BOTANY



Lotus bud, l.s.
Base (peduncle)
Flower

46. BOTANY
Flower petals

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