Which of the following fungi is typically 'dematiaceous,' meaning it produces melanin in its cell wall?
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Correct answer: Exophiala jeanselmei
Dematiaceous fungi (like Exophiala or Cladophialophora) are pigmented. They cause phaeohyphomycosis and chromoblastomycosis, characterized by dark-walled hyphae or sclerotic bodies (Medlar bodies).
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