Bread mould. False-colour scanning electron micrograph of a fruiting body, or sporangium, of the common bread mould Mucor mucedo. Fungal spores circulate freely in the air. When they alight on a favourable medium, the spores germinate to produce a network of threads, known as hyphae, which function to absorb food for growth & spore production. A sporangium grows at the end of a specialised hypha called a sporangiophore. The sporangium's wall cracks under pressure & disintegrates, releasing the spores for new dispersal. Magnification: x325 at 6x4.5cm size. JBU colouring: yellow/orange with green background. BW original is B250/339.