You can identify a mold by its smell, color or texture. For example, the Stachybotrys type of mold is usually identified by the smell it gives off. Black mold, which also belongs to the Stachybotrys genus, is identified by its dark color.
Some molds are identified by their growth pattern. Toxic mold will often grow in areas such as the ceiling tiles, wood, carpets and wallpaper. However, the most professional way of identifying a type of mold is by having it inspected by a toxic mold inspector. The inspector is able to recognize the type, cause and symptoms of a particular mold.