ioo6 



ASCOMYCETES AND BASIDIOMYCETES 



grows better on agar without sugar than on sugar media. The cultures are 

 of a pinkish-reddish colour. The appearance of the colonies has been aptly 

 compared by Adamson to the skin of a very ripe peach. 



Ecto trichophyton granulosum Sabouraud, 1908. 



Synonym, — Trichophyton gypseum Bodin, 1902, pro parte; Trichophyton 

 granulosum Sabouraud, 1908. 



The growth on Sabouraud's agar is discoid, often umbilicated; powdery 

 surface of a white- yellowish colour, with granular formations or prominences 

 dotted all over. 



This Trichophyton is found in the horse, in which it produces a peculiar type 

 of trichophytosis, with extremely numerous, very small, patches. It has been 

 observed in man in Italy by Dalla Fa vera. 



Ectotrichophyton lacticolor Sabouraud, 19 10. 



Synonym. — Trichophyton gypseum Bodin, pro parte; Trichophyton lacticolor 

 Sabouraud, 1910, 



The cultures are discoid, flattened, with shallow furrows radiating from 

 the centre. The colour is cream-white, with occasionally a slight yellow tinge. 

 In old cultures there is abundant pleomorphic duvet. Can easily be inocu- 

 lated in guinea-pigs. 



Ectotrichophyton radiolatum Sabouraud, 19 10. 



Synonym. — Trichophyton gypseum Bodin, pro parte; Trichophyton radiolatum 

 Sabouraud, 19 10. 



Isolated by Sabouraud from cases of kerion. Very similar to E, menta- 

 grophytes, from which it differs in culture by the colour being of less pure 

 white, and by the radiating projections being less marked or absent. After 

 three to four weeks abundant white pleomorphic duvet appears. 



Ectotrichophyton felineum R. Blanchard, 1895. 



Synonyms. — Trichophyton nivenm Sabouraud; T. radians Sabou- 

 raud, 1909; T. Jelineum R. Blanchard, 1895. 



Endo-ectothrix; causes often a pustular ringworm of the body; 

 less frequently attacks the hairs. In the pustules free spores and 

 a few mycelial elements are seen; in the affected hairs the spores 

 forming the parasitic sheath are of large dimensions, 7 to 9 in 

 diameter. The growth on Sabouraud's medium is umbilicated, 

 with a white powdery surface and numerous radiating projections 

 at the periphery. 



Pathogenicity. — This fungus is found in the cat, and probably 

 also in horses, cattle, dogs, sheep, and pigs. In man it causes a type 

 of kerion celsi and also a type of vesiculo-pustular tinea corporis, 

 called by Sabouraud 'trichophytosis circinata disidriformis,' and 

 ' herpes iris vesiculosus ' by Biett. 



Ectotrichophyton denticulatum Sabouraud, 19 10. 



Synonym. — Trichophyton niveum Sabouraud, pro parte; T. denticulatum. 

 Almost identical with E. felineum, but in cultures the radiating projections 

 are much shorter and more pointed. 



Ectotrichophyton (Ectotrichophyton) Castellani and Chalmers, 



1918. 



Definition. — Ectotrichophyton with large spores about 5-7 

 microns. 



