. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. MUSHEOOM MUSHROOM 1043 â cords small rouuded bodies formed by the upward growth of the threads of These increase in size and grow toward the surface of the ground. Each one is the young stage, or button, of the Mushroom. As it enlarges, the upper end appears as a round body on a short stalk, thus out
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. MUSHEOOM MUSHROOM 1043 â cords small rouuded bodies formed by the upward growth of the threads of These increase in size and grow toward the surface of the ground. Each one is the young stage, or button, of the Mushroom. As it enlarges, the upper end appears as a round body on a short stalk, thus outlining in the embryonic stage the different parts of the mature plant. The gills are form- ing on the under side of the cap. They are at this time â covered. They appear on the under side of the minute constriction at the junction of the cap and stem. At this stage they are covered by a loose growth of mycel- ium extending from the upper part of the stem to the margin of the cap. This forms the veil. The gills are formed by mycelium growing downward on the under side of the cap in radiating rows, thus forming the la- mella. The plant now continues to enlarge and the <;ap expands. Just about maturity the veil ceases to grow and the expanding cap thus stretches it until finally the veil is ruptured, usually next the margin of the cap, and then it hangs as a collar or ring on the stem (seen at a, Fig. U41). Position of Agaricus cam^yestrts in Classification.â One of the large subdivisions of the higher fungi is made up of the Mushrooms, toadstools, puff-balls, etc. All of these are characterized by a more or less well- developed fruiting surface, or hymenium. The struc- tural element of the hymenium is the basidiura, and in the large number of the species the form of the basidium does not vary to any great extent from that of the com- mon Mushroom. The basidium, then, is the character- istic fruit structure of this large subdivision of the fungi. For this reason, the plants
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