Inc. Encyclopaedia Britannica's Britannica Illustrated Science Library Plants, Algae And PDF

By Inc. Encyclopaedia Britannica

ISBN-10: 1593398034

ISBN-13: 9781593398033

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In keeping with a overview of fabrics stored within the Herbarium of the Komarov Botanical Institute of St. Petersburg, Russia, this paintings is a part of a chain anticipated to be a 20-volume complete taxonomic account of vegetation of the valuable Asian floristic zone of Mongolia and China. This quantity is devoted to the genus Astralagus L.

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In order to maintain good health, it is necessary to balance yin and yang. YANG is considered male, bright, and hot. YIN is considered female, dark, and cold. THE THEORY OF THE FIVE ELEMENTS FIRE Chinese tradition adds metal to the elements of the Greek model (water, fire, air, and earth). The interaction among all these elements must be kept in equilibrium, with no single element predominating over the others. Should an imbalance occur, an illness might appear. SHAMANS fulfill a central role in ancient communities as repositories of wisdom.

ARAUCARIA Araucariaceae PINE Pinaceae CEDAR Taxodiaceae CLOSED CONES The male and female cones are generally not located on the same branch. Good Wood The great majority of conifers are evergreens, although some, such as larches (tamarac), are deciduous. Conifers are the tallest and most long-lived trees, and they provide most of the wood used in industry. Most conifers form new shoots during the summer. They produce a resinous substance that protects them from freezing during winter. This adaptation permits vital nutrients to continue to circulate through their vascular systems, even in very cold weather.

ROOT In monocotyledons all the roots branch from the same point, forming a kind of dense hair. They are generally superficial and short-lived. 2-2 mm) he orchid, whose scientific name Ophrys apifera means “bee orchid,” is so called because of the similarity between the texture of its flowers and the body of a bee. Orchids' flowers are large and very colorful, and they secrete a sugary nectar that is eaten by many insects. The orchid is an example of a zoomophilous species; this means that its survival is based on attracting birds or insects that will transport its pollen to distant flowers and fertilize them.

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