Ring worm fungi live in
A i.e. Stratum corneum Dermatophytosis is caused by trichophyton, epidermophyton & microsporumQ; and it infects superficial topmost layer of skin (stratum corneum or keratin layer), hair and nailsQ. Cutaneous mycosis (Tenia or Ring worm or Dermatophytosis) infect stratum corneum, hair & nailsQ and do not penetrate living tissues.
Stratum Corneum
Dermis
Prickle Cell layer
Basal Cell layer