If you cut a lemon and let it stand for a day or two

If you cut a lemon and let it stand for a day or two

If you cut a lemon and let it stand for a day or two

If you cut a lemon and let it stand for a day or two, there will probably appear a blue mold like that you have seen on the surface of canned fruit. Bread also sometimes has this blue mold; at other times bread has a black mold, and yet again a pink or a yellow mold.

These and all other molds are tiny living plants. Instead of seeds they produce many very small bodies that serve the purpose of seeds and reproduce the mold. These are called spores. Fig. 112 shows how they are borne on the parent plant.

Fig. 113. Magnified Rose Mildew

Fig. 114. A Mildewed Rose