Both Aspergillus versicolor and Aspergillus sydowii have small spathulate heads. They are shaped like like a tiny Dairy Queen malt spoon. They will also produce conidia from structures that resemble Penicillium spp.
The spores do not have distinguishing characteristics and are identified as Asp/Pen like on an Air-O-Cell cassette sample.
|Aspergillus sydowii line drawing - N. Carlson|
|Aspergillus sydowii in culture. - N. Carlson|
|Typical Aspergillus sydowii heads - N. Carlson|
|Aspergillus sydowii - standard head and Penicillate like structure - N. Carlson|