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Calcarisporium sp.

Mitosporic fungus. Hyphomycetes.

Calcarisporium species comprise a small proportion of the fungal biota and may be more common in northern forested or southeastern areas of the United States. This organism is most closely related to Sporothrix and Nodulisporium. 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) sampling. (Spores do not have distinctive morphology and would be categorized as "other colorless" on spore trap samples.) Natural habitat includes other fungi (mushrooms in the families Agaricaceae and Boletaceae) and wood.