. Lessons in nature study. Nature study. FUNGI 43 or three days the bread will become covered with a cotton-like felt ol threads. This is the mycelium. Later there rise up from this mass many minute stalks which develop at their summits little black beads The black beads are the spore bearing surface and each furnishes an immense number of spores. Those who understand the use of the microscope will know how to inclose some of these spores in a glass "moist cell" and watch their growth and thus demonstrate the whole course of the life of a fungus. The spores may be sown on other piece
. Lessons in nature study. Nature study. FUNGI 43 or three days the bread will become covered with a cotton-like felt ol threads. This is the mycelium. Later there rise up from this mass many minute stalks which develop at their summits little black beads The black beads are the spore bearing surface and each furnishes an immense number of spores. Those who understand the use of the microscope will know how to inclose some of these spores in a glass "moist cell" and watch their growth and thus demonstrate the whole course of the life of a fungus. The spores may be sown on other pieces of bread and a new crop raised. The name of this par- ticular kind of mould is Mucor. There are many other kinds of moulds which the pupils may find and bring for comparison. There are several species which will follow the Mucor on the same piece of bread on which it grew. Some of these may be of bright colors. The blights, mildews, smuts and rusts possess more or less the habits of life of the moulds. Many of them live on living plants. As none of the fungi have chloro- phyll (the green coloring matter in See les- .ng spores. Magnified. ' g^j^g qj^ leaves) they canuot feed upon carbonic acid and water. They, every one, feed upon organic substances. Either decaying plants or animals or living plants or animals furnish them their food. Indeed it is they that pro- duce the processes we include under the term decaying. It will readily be seen that as they must find their food in the substances of plants and'animals either living or dead, they. A single plant of the mould ^-^ leaves of higher plants Mucor. One knob Is discharg-- "-^^ iv_civ^.j ^x ^ ^. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Jenkins, Oliver Peebles; Kellogg, Vernon L. (Vernon Lyman), 1867-1937. joint author. San Francisco,
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