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33 Cards in this Set
- Front
- Back
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the parts of the stem which allow it to grow in length or to develop new stems, flowers, and leaves.
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buds
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the large bud at the end of the twig.
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terminal bud
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buds located along the sides of the twig.
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lateral
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thick scales which protect the bud in winter from frost injury and from drying out.
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bud scales
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rings which circle the stem that indicate where last year's growth started.
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bud-scale scars
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at a node reveal where leaves were attached to the stem in previous years.
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leaf scars
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tiny markings.
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bundle scars
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openings in the bark which allow air to enter the stem. providing a means of respiration.
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lenticels
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the outer section of a woody stem that provided protection for the stem and helps transport food throughout the plant.
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bark
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as the stem grows older, the epidermis is replaced by a stronger protective tissue.
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cork
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ploem cells are connected end-to-end at their sieve plates which serve to conduct food throughout the plant.
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sieve tubes
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the strong, resilient inner section of a woods stem that provides strength and support for the stem and helps transport water and minerals from the roots to the leaves.
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wood
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the wood of conifers such as pines and firs contains only a simple system of water-conducting cells.
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tracheids
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broadleaf trees also contain a second type of xylem tube.
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vessels
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at the center of a woody stem in a young plant.
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pith
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periods of faster and slower growth result in distinct layers of xylem.
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annual growth rings
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the tissue in which the vascular bundles are embedded.
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cortex
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the outer covering of a monocot stem.
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rind
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when a new plant starts to grow form a stem, leaf, or root.
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vegetative reproduction
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the method, when a person uses vegetative reproductive methods to start a new plant from a root, or leaf.
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vegetative propagation
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is a piece of a stem or root which is capable of growing into a new plant.
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cutting
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roots that grow from an unexpected region of the plant.
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adventious roots
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provides the same advantages as the use of cuttings.
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layerings
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is the process of transplanting living tissue from one plant to another.
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grafting
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this branch which is to be grafted onto a stem growing on another tree.
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scion
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the tree which receives the new stem.
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stock
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is a kind of grafting in which the scion is a bud.
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budding
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modern technology has introduced an additional method of vegetative propagation.
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tissue culturing
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is made up of a special stem and leaves designed to store food.
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bulb
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thick stems that grow horizontally under the ground providing food storage and a means of vegetative reproduction.
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rhizomes
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special stems that grow quickly along the surface of the ground.
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runners
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plants that have a habit of climbing up the side of a wall.
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tendrils
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grows underground.
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tubers
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