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Hyalodendron sp.

Mitosporic fungus. Hyphomycetes. Teleomorph (sexual phase): Ceratocystis, Ophiostoma, Cephaloascus, Endomyces.

Hyalodendron species appear to be common during certain periods of the year. They are morphologically related to Cladosporium but do not have the olive and brown pigments of Cladosporium. No information is available regarding health effects or toxicity. Allergenicity has not been studied. May be identified on surfaces by tape lifts, tease mounts from bulk samples, and in air by culturable (Andersen) samples. Spores look very close to Cladosporium and would most probably be thought of as "young" unpigmented Cladosporium spores on spore trap samples. Reported to be rarely isolated from soil by Barron; reported to be isolated from utility poles by Wang. Our laboratory sees this organism in moderate numbers on Andersen air sampling during certain periods of the year, most frequently from northern California and from the southern areas of the United States. Natural habitat is most probably woody plant materials.