Microbiology mycology f091688b All are dimorphic fungi except A Blastomyces dermatitidis B Histoplasma C Pencillium marneffi D Phialopora High-Yield Explanation Phialophora is a dematiaceous fungus causing phaeohyphomycosis, shows only filamentous form. Reference: Textbook of Microbiology; Baveja; 4th edition