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

A human case of keratitis has been reported (Badenoch et al. 2006).

RG-1 organism.


Conidia of Ulocladium spp.

Morphological description: 
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.

Molecular identification: 
ITS sequencing is sufficient for genus identification (Badenoch et al. 2006) and Woudenberg et al. 2013).

Ellis (1970, 1976), Domsch et al. (1980), Rippon (1988), Samson et al. (1995), de Hoog et al. (2000).

Antifungal susceptibility: Ulocladium species limited data (Australian national data); MIC µg/mL.  

  No 0.016 0.03 0.06 0.125 0.25 0.5 1 2 4 ≥8
AmB 2               1 1  
VORI 2         1         1
POSA 1           1        
ITRA 2       1     1