Effect of Nutrition on Growth and Morphology of the Dermatophytes. 1. Development of Macroconidia in Trichophyton rubrum

phytes were originally distinguished from other fungi by their pathogenicity In parasitic life they flourish only in keratin containing tissues, the skin and appendages. There are three recognized genera which were at first differentiated by the clinical picture for which each was responsible, and to some extent by their appearance in tissues. It is now recognized, however, that the morphology and biological characteristics of the fungi themselves form a sounder basis for identification.