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cotyledon
Book article from: The Columbia Encyclopedia, Sixth Edition
cotyledon , in botany, a leaf of the embryo...angiosperms , usually have either one cotyledon (the monocots) or two (the dicots...such as pines, may have numerous cotyledons. In some seeds the cotyledons are flat and leaflike; in others...
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Kola Nut
Encyclopedia entry from: Gale Encyclopedia of Alternative Medicine
...as the kola nut is the cotyledon, which is also called the seed leaf. The cotyledons are white and bitter when...Washington D.C. The dried cotyledons are 1 – 2 in...of tincture. Powdered cotyledons should be taken at 1...
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Germination
Encyclopedia entry from: The Gale Encyclopedia of Science
...is divided into two seed leaves, or cotyledons. Seeds having two seed leaves are said...the growth of the shoot carries the cotyledons above the soil into the sunlight, where...epigeal germination. In other species the cotyledons remain underground; this is known as...
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Leaf
Encyclopedia entry from: The Gale Encyclopedia of Science
...nearly all dicotyledonous Angiosperms, whose embryos have two cotyledons (seed leaves) as in flowering plants such as maple, oak...all monocotyledonous Angiosperms, whose embryos have one cotyledon, as in flowering plants such as lilies and grasses. In dichotomous...
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Magnoliophyta
Book article from: The Columbia Encyclopedia, Sixth Edition
...Dicotyledons) Plants of this class usually have two seed leaves, or cotyledons, and cambium tissue in the stems (see meristem ). Much...Plants of this class generally have only one seed leaf, or cotyledon, and generally lack cambium tissue. The most common families...
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plant
Book article from: The Columbia Encyclopedia, Sixth Edition
...into the monocotyledonous plants—usually with one cotyledon per seed , scattered vascular bundles in the stem , little...the dicotyledonous plants—which as a rule have two cotyledons per seed, cylindrical vascular bundles in a regular pattern...
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embryo
Book article from: The Columbia Encyclopedia, Sixth Edition
...seedling derives nourishment from food stored in its fleshy cotyledons even after it has sprouted, the exact limit of the time during...embryonic root (hypocotyl), stem (epicotyl), and leaves ( cotyledons ) occur inside the ovule within the ovary at the base of the...
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seed
Book article from: World Encyclopedia
...gamete (see pollen ). Food may be stored in a special tissue called the endosperm, or may be concentrated in swollen seed leaves ( cotyledons ). Seeds are the unit of dispersal of angiosperms and conifers . See also fruit ; germination
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John Ray
Encyclopedia entry from: Encyclopedia of World Biography
...essay in classification, the Methodus plantarum nova (1682), raises his observations on seed leaves (soon to be called cotyledons) to a principle of great importance. He states that "from the difference in seeds can be derived a general distinction...
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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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