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Ulocladium sp.

Colonies are rapid growing, brown to olivaceous-black or greyish and suede-like to floccose.  Microscopically, numerous, usually solitary, multicelled conidia (dictyoconidia) are formed through a pore (poroconidia) by a sympodially elongating geniculate conidiophore.  Conidia are typically obovoid (narrowest at the base), dark brown and often rough-walled.  Seven species have been described all being saprophytes.

Conidia of Ulocladium sp.

Species of Ulocladium should not be confused with other poroconidial genera such as Stemphylium, Alternaria, Bipolaris, Exserohilum, Dreschlera, and Curvularia .

MIC data is limited.  Antifungal susceptibility testing of individual strains is recommended.

Clinical significance:

Most species are soil fungi and they are rarely seen in the clinical laboratory.

Mycosis: Phaeohyphomycosis

Further reading:

Domsch, K.H., W. Gams, and T.H. Anderson. 1980. Compendium of soil fungi. Volume 1. Academic Press, London, UK.

Rippon, J.W. 1988. Medical Mycology. 3rd Edition. W.B. Saunders Co., Philadelphia, USA.

Fungal Descriptions > Hyphomycetes (dematiaceous) > Ulocladium

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