NAME_____________________

Key to the different specific symptoms, the names of which are to be placed in the appropriate blank lines on the right-hand side of the page.

A. Abnormal increase in the number of cells of host tissue

• 1. Abnormal lengthening of host tissues occurs 1._________________
• 1. No abnormal lengthening occurs
  
  • 2. An abnormal number of branches sprout on a short-length of stem 2._________________
  • 2. No abnormal number of branches sprount on a short-length of stem.
    
    • 3. One sided, localized swelling of part of a stem tissue. 3._________________
      3. Generalized swelling of stem tissue occurs 4._________________
      

A. No abnormal increase in the number of cells occurs

• 1. Loss of turgor pressure occurs. 5._________________
• 1. No loss of turgor pressure occurs.
  
  • a. The needles are smaller in size through-out the apical 2/3 of the tree; thus one can see through the top of the tree 6._________________
  • a. Needles are not smaller in size.
    
    • I. Abnormal number of small conesproduced 7__________________
    • II. No abnormal number of small conesproduced
      

A. Death of tissue occurs

• 1 Death needles is localized 8__________________
  
• 2. Death of branch tips occurs area is thus yellow. 9__________________
  
• 3. Death of specific areas of the stem occurs 10.__________________
  
• 4. Death of entire top of tree 11.__________________
  

B. No death of tissue occurs

• 1. An abnormal flow of a watery, non- resinous liquid occurs 12.__________________
• 2. An abnormal flow of sticky, non-resionous liquid occurs 13.__________________

C. No death of tissue occurs but destruction of the dead parts of live conifers occurs

• 1. Affected area is uniformly rotted 14.__________________
  2. Affected area is restricted to distinctly outline areas 15.__________________
• 3. Affected area is characterized by shrinking, cracking, and checking 16.__________________
  
  

II. The following combinations of features (indicated by letters) are possible for a fungus; others are not.

• A. For those that are possible, place the Roman numeral corresponding to all of the classes in which this fungus can be classified (note there may be more than one answer for each combination of features
• B. For those that are not possible, place an X in the space following.
• C. the list of possible answers follows.
  

THESE ARE TO BE USED AS ANSWERS FOR BOTH QUESTIONS II

I. Basidiomycetes

II. Ascomycetes

III. Fungi Imperfecti (Deuteromycetes)

IV. Phycomycetes

______17 zoospore

______18 non-septate hyphae, zoospore

______19. septate hyphae, ascospore

______20. non-septate hyphae, basidiospores, fruiting body

______21. septate hyphae, conidium

______22. septate hyphae, zoospore, conidium

______23. non-septate hyphae, exospore and meiospore

______24. hyphae with 2 nuclei/cell, sporangiospore, fruiting body

______25. septate hyphae, sporangiospore, basidiospore

______26. septate hyphae, ascospore, basidiospore

III. place the correct term that matches the information given in the space provided.

____________27. meiospore, exospore, aplanospore
____________28 meiospore, endospore, aplanospore, less than 12 in number.
____________29. meiospore, endospore, aplanospore, more than 20 in number.
____________30. a specialized mass of hyphae on which or in which spore producing cells are found.

IV. Give me at least 4 symptoms which indicate that a tree has a root diseases.

31_________________________________________________________________

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V. what is the difference between yellowing and chlorosis?

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