Fig. 7<S. Microsporum ferrugineum. A, B and C, infected hair mounted in hydroxide; X 36, 

 X 150 and X 150, respectively. D, E and F, cultural growth at two weeks, three weeks and 

 lour weeks on dextrose agar. G, aerial growth of colony is composed ol vegetative filaments 

 and a few chlamydospores; > 180. //. mount Iron: the substrate of the colon) shows large 

 numbers oi chlamydospores; X 480. (Specimen, courtesy of Robert ('. Lofgren.) 



291 



