A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Geomyces sp.: comprise a very small proportion
of the fungal biota and are most closely related
to Chrysosporium species. Health effects include
rare cases of onychomycosis. No information is
available regarding toxicity or allergenicity.
May be identified on surfaces by tape lifts, tease
mounts from bulk samples, and in air by culturable
samples. Spores do not have distinctive morphology
and would be categorized as “other colorless”.
Widespread in soil.
Geotrichum sp.: Contaminant. Found as a normal
part of human flora and seems to cause disease
in compromised hosts.
Gliocladium sp.: A fungus, which is structurally
similar to Penicillium sp. It is reported to be
allergenic. May be identified on surfaces by tape
lifts, tease mounts from bulk samples, and in
air by culturable samples. Spores do not have
distinctive morphology and might be categorized
as “other colorless”. Found very infrequently
in air samples because the spores are formed in
sticky masses and are not easily disseminated
by air currents. It is widespread in decaying
vegetation and in the soil.
Gliomastix sp.: Comprise a small proportion of
the fungal biota. This genus is most closely related
to Acremonium and the monophialidic species of
Paecilomyces. No information is available regarding
health effects, toxicity, and allergenicity. May
be identified on spore trap samples if the presence
of this genus has already been demonstrated (for
example, on tape lifts). Spores have somewhat
distinctive morphology but may be confused with
other genera. The gray black pigment of the spores
is very close to the pigment of Stachybotrys.
Natural habitat includes plant litter, wood, soil,
and cellulosic materials.
Gonatobotrys sp.: Comprise a very small proportion
of the fungal biota. Morphologically this genus
is very close to Gonatobotryum but without dark
pigment. No information is available regarding
health effects or toxicity. Allergenicity has
not been studied. Rarely found but may be identified
on surfaces by tape lifts, and tease mounts from
bulk samples, and in air by culturable samples.
Spores do not have distinctive morphology and
would be categorized as “other colorless”
on spore trap samples. Reported to be parasitic
on Alternaria and Cladosporium. Natural habitat
is plant litter.
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Gonatobotryum sp.: Common in certain ethological
niches. They are parasitic on Ceratocystis and
so are found where Ceratocystis is found, most
particularly lumber. Most homes built with lumber
have areas of growth of both Ceratocystis and
Gonatobotryum on wood framing inside walls. Virtually
all lumberyards have some percentage of boards
with areas of this black mold growth. No information
regarding health effects, toxicity or allergenicity
is available. May be identified on surfaces by
tape lifts, tease mounts from bulk samples and
in air by spore trap samples. Spores have distinctive
morphology. Other natural habitats include soil,
and rotten wood Also parasitic on certain other
plants.
Graphium sp.: Common and are closely related
to several ascomycetes. The sporulating structures
of Graphium form synnema (coremmia), which are
a gathering of conidiophores into a sort of flower
bouquet. The taxonomy of graphium species needs
work since the actual sporulating process differs
among the many species. Health effects are dependant
upon the related ascomycete. There are no reports
of illness due to the Graphium stage of Ophiostoma.
However, the genus Pseudallescheria (asexual phase
is Scedosporium) has a Graphium phase, and these
genera are noted for many health effects, some
of which have serious consequences. No information
is available regarding toxicity or allergy. May
be identified on surfaces by tape lifts, tease
mounts from bulk samples, and in air by culturable
samples. Spores do not have distinctive morphology
and would be categorized as “other colorless”
on spore trap samples. Sources of isolation are
many, including woody substrata, plant debris,
soil, manure, and polluted water.
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