Sulfur bacteria, also known as sulfur porous bacteria or sulfur colored porous bacteria, are a type of fungus. In the early stage, it is tumor like, resembling a brain marrow, with a tile shaped arrangement of fungal caps, and the meat is tender and crispy after sweating. The cap is 8-30cm wide and 1-2cm thick, with a sulfur colored to bright orange surface, fine or no fluff, wrinkles, no ring, thin and sharp edges, wavy to lobed. Mushroom meat is white or light yellow in color, with sulfur colored pores that fade after drying. The pores are polygonal, with an average of 3-4 pores per millimeter. Spores are oval shaped, nearly spherical, smooth, colorless, 4.5-7 × 4-5 μ m. The important feature of this bacterium is the tile shaped arrangement of fruiting bodies, which are sulfur colored. Eating it during childhood has a better taste.