TAXONOMY 
263 
called aspergillosis. The organ most prone to infection by this 
organism is the lung, although the skin, cornea, ears and other parts 
Fig. 136.— Sterigmatocystis niger (Aspergillus niger ) showing conidiophores and 
conidiospores formation with stages in germination of spores. ( Harshberger , after 
Henri Coupin.) 
are also subject to its parasitic influence. It produces short coni¬ 
diophores with sterigmata bearing long chains of rounded, colorless 
