Entry in species database
Appearance of colonies
CYA: reaching 3.0-3.5 cm, in 10 days at 24-26°C. Growth is usually plane or moderately furrowed, with occasional appearance of floccose strains. But generally a comparatively thin surface layer of mycelial felt is observed, which produces a copious amount of erect conidiophores. The reverse is usually uncoloured but becomes brown with passing time in some strains. Large conidial heads extend from 300 to 400 μm by 150 to 200 μm when young. However with time, they split into two or more divergent and compressed cordial chains reaching 1.00 mm portraying a colour consisting of artemesia green to slate olive. The observed conidiophores grow up to 1.5-3.00 mm in length with 20-30 μm in diameter. They slowly and ultimately enlarge at the apex into a clavate vesicle, which consists of a fertile area, 200 to 250 μm in length and 40-60 μm wide. The sterigmata usually ranges from 2.5 to 3.5 μm by 2.0 to 3.0 μm at the base of the vesicle, to 7.0 or 8.0 and occasionally 10 μm to 2.5 to 3.0 μm at the apex. The conidia are comparatively thick-walled and measures 3.0 to 4.5 μm by 2.5 to 3.5 μm. While they can be larger in some strains, in others their appearance may be irregular.
[Raper, Kenneth B.; Fennell, Dorothy I. (1965). The Genus Aspergillus. Baltimore: The Williams and Wilkins Company. pp. 137–146.]
Appearance of conidia
The conidiophores range from 300 to 500 μm and bear loose, columnar heads. Typical strains may be resembled by strong and unpleasant odor whereas non-typical strains are characterized being odorless.
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