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Botany |
Record 26 to 50 of 142 |
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Endogen An endogen, a plant that grows internally.... |
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Epidermal Outgrowths "Different forms of epidermal outgrowths. 1, hooked hair from Phaseolus multiflorus; 2, climbing hair from stem of Humulus Lupulus; 3, rod-like wax coating from the stem of Saccharum offininarum; 4, c... |
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Epidermis, Plant "Two epidermal cells in cross section showing thickened outer wall differentiated into three layers, namely, an outer cuticle, cutinized layer (shaded), and an inner cellulose layer." -Stevens, 1916... |
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Epidermis, Plant "Epidermal outgrowths in the form of scales and hairs." -Stevens, 1916... |
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Epidermis, Plant "Epidermal outgrowths in the form of scales and hairs." -Stevens, 1916... |
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Exogen An exogen, a plant that grows externally.... |
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Exogen, Section of Branch Showing "Exogen. 1. Section of a branch of three years' growth: a, medulla or pith; b b, medullary sheath; e e, medullary rays; c c c, circles of annual growth; d, bark. 2. Netted veined leaf (oak). 3. Dicoty... |
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Food Digestion, Plant "The digestion of the stored food and its ascent through the tracheal tubes when growth is resumed in the spring." -Stevens, 1916... |
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Food Storage, Plant "Diagram to show food from the leaves descending through the sieve tubes and being stored in the medullary ray cells and xylem parenchyma." -Stevens, 1916... |
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Food Tissues "Diagram to show the relation of the food-conducting tissues of the leaf to those of the stem; and in the stem the relation of these tissues of one year to those of preceding years. The dotted line be... |
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Food Transportation, Sieve Tube "Diagram showing the transport of food through the sieve tubes, medullary rays and tracheal tubes, and its storage in the parenchyma cells of the wood and bark. The black bodies in the cells indicate ... |
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Fungus, Eurotium "Eurotium repens. A, a small portion of the mycelium with a conidiophore (c), terminated by the sterigmata (st), from which the spores have fallen, also with the spiral female organ, the ascogonium (a... |
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Fungus, Rust Rusts are fungi in the Uredinales order that are plant parasites and resemble rust. "Ravenelia. a, stem of Cassia nictitans with teleutospores on the stem and uredospores on the leaves; b, stem and te... |
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Fungus, Scab "The Scab-fungus (Venturia inaequalis). a, an infested apple, showing scabs caused by the fungus; b, portion of an infested leaf, showing the fungus in black patches; c, section of a diseased spot in ... |
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Funicle of Lunaria Pod "Funicle. In botany, The stalk of an ovule or seed. Pod of Lunaria. a, a, a, funicles." -Whitney, 1911... |
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Germination "Seeds Germinating. The central figure shows a plant which has newly appeared above ground." -Whitney, 1911... |
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Guard Cell Experiment "Diagram of apparatus showing how the guard cells draw apart; j, j, position of the rubber tubing when the water pressure is turned on." -Stevens, 1916... |
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Hybrid Self-Fertilization "Diagram showing possible combination of two contrasting characters during self-fertilization of a hybrid. A, row of sperm cells, B, row of egg cells, C, row of fertilized egg cells." -Stevens, 1916... |
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Hybridization "Diagram to show results of hybridization, with reference to dominant and recessive characters to the F3 generation." -Stevens, 1916... |
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Intercellular Spaces of a Plant "Diagram suggestive of the distribution of intercellular spaces throughout a plant. The heavy horizontal lines in stem and root indicate intercellular spaces in medullary rays. The arrows indicate the... |
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Knight's Experiment "Knight's experiment, substituting centrifugal "force" for gravity" proved that stems do not grow upwards because of sunlight but rather, roots grow downwards because of gravity. -Gager, 1916... |
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Leaf Cuttings Plant propagation is the process of artificially or naturally distributing plants. Pictured here is the propagation of plants through cutting.... |
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Leaf, Microscopic view of a "The branch vascular bundles will be distinctly seen, resembling in some respects the arteries and veins of the human body. A careful examination will show that these are also covered with a very fin... |
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Light Intake, Plant "Diagram showing how the position of the chlorplasts against the vertical walls of the palisade cells exposes them to good advantage to light from all quarters of the sky." -Stevens, 1916... |
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Linnaeus' Class 1 The sexual system of a plant, here having one carpel and one stamen, Monandria.... |
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