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cotyledon
Book article from: The Columbia Encyclopedia, Sixth Edition
cotyledon , in botany, a leaf of the embryo of a seed . The embryos of flowering plants, or angiosperms , usually have either one cotyledon (the monocots) or two (the dicots). Seeds of gymnosperms, such as...
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plant
Book article from: The Columbia Encyclopedia, Sixth Edition
...conifer , the ginkgo , and the cycad . The angiosperms are separated into the monocotyledonous plants—usually with one cotyledon per seed , scattered vascular bundles in the stem , little or no cambium , and parallel veins in the leaf —and the...
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Leaf
Encyclopedia entry from: The Gale Encyclopedia of Science
...the large veins. Parallel venation occurs in the leaves of nearly all monocotyledonous Angiosperms, whose embryos have one cotyledon, as in flowering plants such as lilies and grasses. In dichotomous venation, the veins branch off from one another like...
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Palms
Encyclopedia entry from: The Gale Encyclopedia of Science
...plants. Flowering plants have been subdivided into two major groups: the monocotyledons which bear only one seed leaf (cotyledon) and the dicotyledons which bear two seed leaves. Palms are among the most diverse of the families of monocotyledons, surpassed...
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Kola Nut
Encyclopedia entry from: Gale Encyclopedia of Alternative Medicine
...charcoal must be given as an antidote for accidental poisoning. Preparations The part of the seed known as the kola nut is the cotyledon, which is also called the seed leaf. The cotyledons are white and bitter when they are fresh, but they turn reddish with...
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Magnoliophyta
Book article from: The Columbia Encyclopedia, Sixth Edition
...bluebell , and aster families. Class Liliopsida (Monocotyledons) Plants of this class generally have only one seed leaf, or cotyledon, and generally lack cambium tissue. The most common families are the grass , palm , arum , sedge , lily , and orchid families...
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Chocolate
Encyclopedia entry from: Encyclopedia of Food and Culture
...cacao seeds. Although not leguminous, the cacao seeds are often referred to as "beans." The composition of the edible cotyledon or "nib" is by weight approximately 55 percent fat; 30 percent carbohydrates, half of which is dietary fiber; 1
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Arrowgrass
Encyclopedia entry from: The Gale Encyclopedia of Science
...along a suture on one side to release seeds. The follicles of arrowgrass plants have one or two seeds, each of which has one cotyledon (seed leaf). The arrowgrass plants are not of great economic significance to humans. However, the leaves or rhizomes...
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monocotyledon
Book article from: World Encyclopedia
monocotyledon Subclass of flowering plants ( angiosperms ) characterized by one seed leaf ( cotyledon ) in the seed embryo; the leaves are usually parallel-veined. Examples include lilies, onions, orchids, palms, and grasses. The larger subclass of plants is dicotyledon .
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