Identification of the Economic Woods of the United States: Including a Discussion of the Structural and Physical Properties of WoodWiley, 1919 - Broj stranica: 157 |
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Stranica
... Pith Bark Primary wood Cambium Secondary wood Vessels Tracheids • Wood fibres Wood parenchyma . Rays PAGE . 1 5 7 8 11 12 12 14 16 18 21 23 Resin ducts 29 29 Pits 31 Tyloses 35 Pith flecks or medullary spots 36 Trabecula : Sanio's beams ...
... Pith Bark Primary wood Cambium Secondary wood Vessels Tracheids • Wood fibres Wood parenchyma . Rays PAGE . 1 5 7 8 11 12 12 14 16 18 21 23 Resin ducts 29 29 Pits 31 Tyloses 35 Pith flecks or medullary spots 36 Trabecula : Sanio's beams ...
Stranica 36
... PITH FLECKS OR MEDULLARY SPOTS Pith flecks or medullary spots are small , brown or grayish , half - moon - shaped patches appearing so commonly on the cross sections of many diffuse - porous woods , especially of the four families ...
... PITH FLECKS OR MEDULLARY SPOTS Pith flecks or medullary spots are small , brown or grayish , half - moon - shaped patches appearing so commonly on the cross sections of many diffuse - porous woods , especially of the four families ...
Stranica 37
... pith flecks appear as flattened strands running up and down the stem , and often into the root . Examined microscopically , pith flecks are seen to be made up of irregularly shaped , polyhedral , parenchymatous cells with thick , dark ...
... pith flecks appear as flattened strands running up and down the stem , and often into the root . Examined microscopically , pith flecks are seen to be made up of irregularly shaped , polyhedral , parenchymatous cells with thick , dark ...
Stranica 71
... Pith Flecks ( pp . 36-37 ) BROWN , H. P .: Pith - ray Flecks in Wood . Cir . 25 , U. S. Forest Service , Washington , D. C. , 1913 . GREENE , CHAS . T .: The Cambium Miner in River Birch . Journ . Agr . Research , 1 : 6 : 471-4 , 1914 ...
... Pith Flecks ( pp . 36-37 ) BROWN , H. P .: Pith - ray Flecks in Wood . Cir . 25 , U. S. Forest Service , Washington , D. C. , 1913 . GREENE , CHAS . T .: The Cambium Miner in River Birch . Journ . Agr . Research , 1 : 6 : 471-4 , 1914 ...
Stranica 102
... Pith flecks rare . Growth rings very dis- tinct on account of deeper - colored late wood . Wood dense ; ave . sp . gr . .69 . Rays 5-7 cells wide with intermediate rays uniseriate . Hard , Sugar , or Rock Maple , Acer sac- charum Marsh ...
... Pith flecks rare . Growth rings very dis- tinct on account of deeper - colored late wood . Wood dense ; ave . sp . gr . .69 . Rays 5-7 cells wide with intermediate rays uniseriate . Hard , Sugar , or Rock Maple , Acer sac- charum Marsh ...
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Uobičajeni izrazi i fraze
absent Acer Anatomy Betula bordered pits brown cambium Catalpa Cedar cell walls cells high cells wide Comparative Anatomy cross section DEBARY dense Dicotyledons distinct early wood elements Esculus Forestry Fraxinus grain growth ring Guaiacum Gymnosperms Hardwood Record heartwood heartwood and sapwood Hicoria IRVING W Juglans Juniperus Juniperus virginiana late wood Leitneria lens Liquidambar Liriodendron Magnolia MAXWELL numerous Odor perforations simple phloem Pine Pinus Pith flecks pits into ray Platanus Plate Populus Pores in late portion Quercus radial ray cells half-bordered Ray parenchyma ray tracheids resin resin cells resin ducts Robinia sapwood Sassafras scalariform Sequoia simple pits soft species stem structure surface tangential Taxodium Texture Tilia Timber Toxylon tree tyloses U. S. Dept U. S. Div U. S. Forest Service Ulmus unaided eye usually Vessels without spirals wood fibres Wood parenchyma Wood-using Industries xylem
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