#WHAT IS BUDS SERIES#
Often it is possible to find a bud in a remarkable series of gradations of bud scales. In many plants buds appear in unexpected places: these are known as adventitious buds. There are alternate, opposite, and whorled buds, as well as the terminal bud at the tip of the stem.
Since buds are formed in the axils of leaves, their distribution on the stem is the same as that of leaves. A head of cabbage (see Brassica) is an exceptionally large terminal bud, while Brussels sprouts are large lateral buds. A terminal bud occurs on the end of a stem and lateral buds are found on the side. In many of the latter, buds are even more reduced, often consisting of undifferentiated masses of cells in the axils of leaves. Naked buds are found in some shrubs, like some species of the Sumac and Viburnums ( Viburnum alnifolium and V. The minute underdeveloped leaves in such buds are often excessively hairy. In many plants scales do not form over the bud, and the bud is then called a naked bud. Continued growth of the branch causes these scars to be obliterated after a few years so that the total age of older branches cannot be determined by this means. By means of these scars one can determine the age of any young branch, since each year's growth ends in the formation of a bud, the formation of which produces an additional group of bud scale scars. When the bud develops, the scales may enlarge somewhat but usually just drop off, leaving a series of horizontally-elongated scars on the surface of the growing stem. Many bud scales are covered by a gummy substance which serves as added protection. The buds of many woody plants, especially in temperate or cold climates, are protected by a covering of modified leaves called scales which tightly enclose the more delicate parts of the bud. Inflorescence bud scales in Halesia carolina
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