io66 



F UNGIJMPERFECTI 



7. C ohnistreptothrix foersteri (Cohn, 1874): — • 



Streptothrix foersteri Cohn, 1874. 



Leptothrix oculorum Sorokin, 1881. 



Odspora foersteri Sauvageau and Radais, 1892. 



Streptothrix aurea Du Bois de Saint Severin, 1895. 



Streptothrix foersteri Kruse, 1896. 



The aerobic streptothrix of Silberschmidt obtained from 



a case of dacryocystitis, 1901. 

 ? Streptothrix radiata Namyslowski, 1909. 

 ? Streptothrix cerebriformis Namyslowski, 1909. 



8. C ohnistreptothrix tenuis (Castellani, 1911): — 



Nocardia tenuis Castellani, 1911. 



9. C ohnistreptothrix carougeaui (Gougerot, 1909): — 



Discomyces carougeaui Gougerot, 1909. 



Nocardia carougeaui Castellani and Chalmers, 1913. 



These species may be differentiated as given on p. 1065. 



Cohnistreptothrix Israeli Kruse, 1896. 



Synonyms. — Streptothrix israeli Kruse, 1896; Cohnistreptothrix 

 israeli Pinoy, 191 1. 



Found in some cases of human and bovine actinomycosis. It 

 differs from A'', bovis by being strictly anaerobic. Inoculations of 

 pure cultures have reproduced actinomycotic lesions, while so far 

 such experimental lesions have not been obtained by using cultures 

 of A^. bovis. 



Wright states that N. israeli is the real cause of actinomj^cosis, 

 while N. bovis would be only a contamination or a saprophytic 

 agent. We agree, however, with Pinoy' s opinion that the clinical 

 features of actinomycosis may be due to several germs : in man Pinoy 

 has found A^. bovis and A^. israeli ; in oxen A", israeli in most cases, 

 but also A^. bovis, the actinobacillus, and mixed infections. 



The actinobacillus of Lignidres and Spitz, very common in South America, 

 gives rise to a type of actinomycosis of cattle affecting generally the tongue 

 and neck, in which no grains are found. The germ in the affected tissues 

 appears in the shape of a club-like bacillus. Cultivation is dif&cult, the 

 best medium being glucose serum agar. The colonies are minute, bluish, 

 or translucid, with irregular edge. The germ generally dies out after two 

 or three subcultures. Pinoy and Ravaut have described a case of menin- 

 gitis in man due to this bacillus. 



Cohnistreptothrix thibiergei Pinoy and Ravaut, 1909. 



Synonym. — Nocardia thibiergei Pinoy and Ravant, 1909. 



Discovered by Pinoy and Ravaut in a case of peculiar nodular 

 affection of the subcutaneous tissues and muscles. In the lesions 

 very thin (0-2 /j,) fragile mycelial threads are seen, often dissociated 

 in bacillary-like bodies. Masses of mycelia embedded in amorphous 

 cementing substance form minute grains or sclerotia, with a maxi- 

 mum diameter of about 80 ft. Some filaments terminate in club- 

 like formations about 3 jbb in breadth, which are acid-fast. 



