Ascomycetes with multiple asexual forms: Graphium, Leptographium, Sporothrix-like anamorphs, Chalara.
Approx. 56 species, both genera.
Commercial lumber, tree and plant pathogen.
Most homes built with lumber have areas of growth on wood framing inside walls.
Ophiostoma ulmi is the cause of Dutch Elm Disease.
Persons most likely to be affected would be lumber-yard workers or carpenters.
Not reported to infect humans or animals. A connection between Ophiostoma and the human pathogen Sporothrix schenckii has been proposed but not confirmed.
Some species may grow on specialized laboratory media. Asexual forms grow on general fungal media.
Not identifiable on spore trap slides. On rare occasions the spores of Gonatobotryum, which grows parasitically on Ceratocystis, are seen on spore trap samples (an indirect indication of the presence of this group of fungi).
Distinctive fruiting bodies with long necks are identifiable on tape lifts.