. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). 1110 Home Nature-Study Course. increase in numbers and strength until they are able to develop the mushrooms, which are simply the fruiting organs. Highly fertilized soil, permeated with, these mushrotim threads, is often cut into bricks or large cakes and sold for the purpose of starting new mushroom beds. The commercial term for these bricks is &q
. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). 1110 Home Nature-Study Course. increase in numbers and strength until they are able to develop the mushrooms, which are simply the fruiting organs. Highly fertilized soil, permeated with, these mushrotim threads, is often cut into bricks or large cakes and sold for the purpose of starting new mushroom beds. The commercial term for these bricks is " ; Upon these threads the buttons grow. We may find them in regular mushroom beds, from the size of a pinhead up. Lesson II BRACKET FUNGI Purpose.— To help the children understand that the fungi which we see growing shelf-like from trees are deadly enemies to the trees. Their spores germinate and penetrate at some open wound and the grow- ing fungus weakens the wood. Metliod and material.— It is desirable that a tree on whicli shelf-fungus grows should be studied by the class, for this is a lesson on the care of trees. After this lesson the fungus it- self may be studied at leisure in the school-room. Observations by pupils-' (i). On what kind of tree is the bracket fungus growing? Is it alive or dead? If living, does it look vigorous or is it decaying? (2). Is the fungus bracket growing against the side of the tree or does it stand out on a stem? (3). Look at the place where the bracket joined the tree. Does it seem to be part of the wood? (4). What color is the fungus on its upper surface? How large is it ? How thick near the tree ? How thick at the edge ? Can you detect concentric layers or rings ? If it is the large species used for etching, cut down through it with a knife or hatchet and count the layers; this should show its age. (5). Look at the lower surface. How does it appear to the naked eye? If you scratch it with a pin or knife does the bruise sh
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