CLASSIFICATION OF THE MOLDS 



67 



dia of Hormodendrum are one-celled, while those of Clados- 

 porium, at least in the old and mature colonies, are in part 

 two-celled. 



Alternaria. In this genus the spores are large and club- 

 shaped, occurring in chains, the youngest spore at the tip. 



e 



FIG. 46. HORMODEXDBUM AT*D CLADOSPOEiuM. A. Hormodendrum. 

 B. Cladosporium. 



The mycelium is usually also brownish or fuscou^ in color. 

 The spores are many-celled and muriform. The species 

 Alternaria tennis is abundant in moldy grains, in the soil, 

 and the cells are frequently found in laboratory air. *i 



FIG. 47. ALTERNABIA. 



