Botanical Words Alphabetical List - AI

AIR LAYERING: This is a method of propagation in which roots are induced to form around a plant's stem. This is done by removing a very narrow strip of bark from around the branch or stem, about 8 to 12 inches from the tip of the shoot, or at that same distance from the tip, a cut can be made about a third way through the branch in an upward direction and a sliver of wood can be inserted into the cut to keep it open. Next, a bundle of moist sphagnum moss is tied securely around the cut area. The moss must always remain moist (this may be done by wrapping it in polyethylene film) and the roots of the plant somewhat dry. New roots will soon sprout from the incision. The new plant is then cut off below the moss, potted and kept in a humid atmosphere until it is established.

AIR PLANT: An epiphyte (go see). Many epiphytic Orchids and Bromeliads are popularly called air plants.

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