Figure 3. The dermatophyte culture plate exhibits Microsporum canis growth (the white-to-pale-yellow fungal colonies at the top of the culture plate) that is at risk of being overgrown by the gray saprophytic fungal colonies on the bottom of the plate. Daily fungal culture observation with or without sampling suspect dermatophyte colonies and inoculating them on a new culture plate is important to ensure that saprophytes do not overgrow the dermatophytes and potentially cause a false negative culture result.