BOTANY 394 Lecture Quiz #2 Spring, 1994 Name______________________
I. In the spaces provided, Compare (ie. give all
the similarities) and contrast (ie. give all the differences)
between brown rotted wood and white rotted wood as follows:
| features to compare or contrast| | ||
| cell wall material | ||
| moisture in wood and strength | ||
| growth on agar (tannic acid e. g.) |
||
| reaction to syringaldezine and to guaiac | ||
| additional structures (e. g. gnarled hyphae, etc) |
II. Provide an explanation of how you would determine that a stand
of trees was exhibiting symptoms of a root disease?
III. For Phytophthora lateralis, provide the syndrome of
the disease, a discussion of how a tree is killed, a discussion
of the vectors of the disease, how the disease spread from Seattle,
the features of the pathogen that allow it to overcome conditions
that are not favorable for its growth, and the outlook for the
host.
IV. On the back of this page and using only features of the sporocarp,
provide a dichotomous key to the following twelve species of wood-rotting
fungi: (You are NOT to use the host, ONLY the features of the
sporocarp). Some of the features which will allow you to combine
species and thus separate them in a key are: fruiting body attachment,
annual vs. perennial, sporocarps, hymenophore type and color,
color of the surface of the fungus.
Armillariella mellea
Ganoderma applanatum
Ganoderma oregonense
Heterobasidion annosum
Phellinus arctotstaphyli
Phellinus chrysoloma
Phellinus ferrguinosa
Phellinus pini
Phellinus weirii
Stereum hirstutum
Trametes versicolor
Tricaptum abietinum