SIMPLE PLANTS 



213 



Like the tubercle bacillus, Oidium involves the same organs; lungs, 

 lymph-nodes, adrenal glands, meninges, seminal vesicles, etc. 



The skin lesions are chronic and consist of nodules, abscesses, and 

 ulcerations. 



DISEASES CAUSED BY FUNGI OF MORE OR LESS UNCER- 

 TAIN POSITION 

 Actinomycosis or lumpy jaw. 



SPOROTRICHOSES 



The Sporotrichoses. 



(a) Subcutaneous. Small solid nodules, becoming abscesses, ulcer- 

 ating the skin. 



(b) Cutaneous. Principally in arms, hands and legs, though it 

 may occur on other parts of body. Ulcers form in groups of two or 

 three. 



(c) Localized, hard and eroded on surface. 



Fig. 104. Sporotrichum Beurmanni. (After Brumpt.) 

 -1, Single lateral conidiospore ; 2, terminal conidiospores ; 3, 

 collection of laterial conidiospores. 



The parasite (Fig. 104) is "introduced by accidental inoculation, and 

 possibly through grains and fruit." Acts like bacteria, producing toxins, 

 toward which toxins there are active reactions of the body-fluids. It is 

 a short rod 3 to 5 microns long and 2 to 3 microns in breadth. In cul- 

 tures it grows in filaments of about 2 microns in diameter and forms 

 characteristic ovoid spores. 



"The points of differentiation between the forms are due largely to 

 variation in the modes of sporulation." 



