PARASITIC FUXGI AND MOULDS. 



53 



The mycelium consists of elongated, cylindrical 

 articulations, which find their way among the cells of 

 the epidermis, especially in the vicinity of the edges 

 of the patch, and may penetrate deeply into the dermis 

 (Fig. 25). Some of the shorter filaments terminate in 



Fig. 25. Transverse section of 

 b, superficial layer of dern 

 spores. 



i spot of ringworm : a, epidermis ; 

 tlie dermis; d d' mycelium with 



chaplets of spores, which are successively detached 

 from the stem ; they are therefore found detached in 

 large numbers in the midst of the epidermic cells. 

 The centre of the patch is occupied by one or more still 



