A taxonomic study of the genus Trichopezizella Raitviir is
presented. T. nidulus var. nidulus, T. horridula, T. barbata, and
T. relicina var. relicina are fully described and figured. Three
provisional combinations are made: T. nidulus var. hystriculus, T.
nidulus var. setigera, and T. relicina var. macrospora. T. onocleae
and T....
Cultural and developmental characteristics of a collection of
Anthracobia melaloma with a brown hymenium and a barred exterior
appearance were examined. It grows well in culture on CM and
CMMY agar media and has a growth rate of 17 mm in 18 hours. It is
heterothallic and produces asexual multinucleate...
A taxonomic study of the genus Ophionectria Saccardo is presented.
The genus is described and the only remaining species, the type species,
Ophionectria trichospora, is described and figured. Ophionectria
trichospora is compared with Nectria haematococca to define relationships
between the two genera.
All other species formerly placed in Ophionectria are...
Eight primary ambrosia fungi, Raffaelea canadensis, R.
sulcati, Ambrosiella brunnea, A. ferruginea, A. gnathotrichi, A.
hartigii, A. sulcati, and A. sulphurea (Fungi Imperfecti), were found
in association with 11 ambrosia beetle species (Scolytidae and Platypodidae).
The fungi are reported from new beetle symbionts, new
tree hosts, and/or increased geographical distribution....
The foliose lichen Lobaria oregana (Tuck.) Mti 11. Arg. is an
important component of the upper canopy epiphyte community in oldgrowth
Douglas fir forests of the Pacific Northwest. L. oregana
contains the secondary phycobiont, Nostoc sp. , which is capable of
fixing nitrogen. This thesis presents a new non-destructive method...
A taxonomic revision of the genus Anthracobia Boudier is
presented. The genus and eight included taxa are described and
figured. A discussion of the taxonomic criteria used to delimit the
genus and the species is included, and a key to the recognized taxa is
given. Four imperfect states for included...
Xanthoria polycarpa is a foliose lichen, commonly found as an
epiphyte in the Willamette Valley of western Oregon. This study was
undertaken to determine some of the effects of environmental factors
on ascospore discharge and germination in X. polycarpa.
Ascospores were collected on glass slides suspended above
lichen thalli. Abundant...
Pseudaleuria quinaultiana gen. et sp. nova is described in English
and Latin. P. quinaultiana is compared with Aleuria, Anthracobia
Cheilymenia, Geopyxis, Humaria, lodophanus, Jafnea, Leucoscypha,
Melastiza, Octospora, Pyronema, Scutellinia, Sphaerosporella, Tricharina,
Morchella, Cookeina, Phillipsia, Pseudoplectania, Sarcoscypha, and
Sarcosoma. Of these genera P. quinaultiana has hairs most similar to
those found...
Pendent Usnea species were collected in western Oregon and examined.
Character states, such as cortex-medulla-axis ratio; fibril length; papilla diameter;
branching patterns; and presence or absence of fibrils, papillae, soredia, isidia; plus
chemistry, were recorded and analyzed by inspection for differences. Historical
names were researched in the literature. A comparison...
Phyllopane microorganisms on the leaf surfaces of bean
(Phaseolus vulgaris L. ), hop (Humulus lupulus L. 'Fuggle-H'),
mint (Mentha piperita L. 'Mitcham') and tomato (Lycopersicon
esculentum Mill. ) has been observed by cultural methods. A leaf
impression method was used to examine both actively growing and
inactive propagules present on...