SPOROTRICHOSIS 



2087 



Sporotrichum Link.'^iSog 



S. schenki Hektoen and Perkins, 1901. 



S. fci?wymaw«? Matruchot and Ramond, 1905. 



5. dori de Beurmann and Gougerot, 1906. 



5. gougeroH Matruchot, 19 10. 



S. jeanselmei Brumpt and Langeron, 1910. 



S. indicum Castellani, 1908. 



S. asteroides Splendore, 1909. 



5. lesnei Vuillemin, 19 10. 



,S. councilmani Wolbach, Sisson and Meier, 191 7. 



For the description of these organisms, see chapters on Fungi 

 (p. 1117). 



The species so far found in the tropics 'are — S. heurmanni Matru- 

 chot and Ramond in Brazil and Africa, S. asteroides Splendore, 1909, 

 injBrazil, and S. indicum Castellani, 1908, in Ceylon. These fungi 

 are morphologically very similar. In the human lesions the fungus 

 appears morphologically as a yeast, and is very scarce. In cultures 

 mycelial threads and numerous spores are seen. The spores are 

 ovoid, 5 to 6 /X in length by 3 to 4 />t in breadth. The mycelial 

 filaments are very slender (2 /x) in S. heurmanni and S. schenki ; 



Fig. 836. — Sporotrichic Lymphangitis. 

 (From a photograph by Splendore.) 



somewhat broader (2J to 3 /x) in S. indicum. S. asteroides is 

 characterized by the presence of peculiar radiate bodies in the 

 affected tissues. These fungi grow easily on the ordinary culture 

 media, best of all on Sabouraud's peptone-glucose agar. Colonies 

 develop from the fourth to the tenth day as small white points, 

 surrounded by a delicately rayed aureola of whitish colour. They 

 gradually increase in size, coalesce, become convoluted, and take 

 a dark greyish, brownish, and even black colour. These fungi, 

 according to De Beurmann, may perhaps live saprophytic on veget- 

 ables (lettuce-leaves, and other kinds of vegetables used as salads) 

 and on insects (flies, caterpillars, larvae). According to De Beur- 

 mann, infection takes place by contact with unclean vegetables. 



