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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Rezultati 1 - 5 od 46.
Stranica 2
... distinct and constant to assure specific identification . Good examples of this are afforded by the woods of Pinus , Quercus , Hicoria , and Populus , where it is usually difficult and very often impossible to do more than separate them ...
... distinct and constant to assure specific identification . Good examples of this are afforded by the woods of Pinus , Quercus , Hicoria , and Populus , where it is usually difficult and very often impossible to do more than separate them ...
Stranica 8
... distinct septation of the continuous pith by plates of stone cells , while in Juglans there is decided septation but the diaphragms are not sclerotic , and the pith is not con- tinuous between the disks . On account of these and other ...
... distinct septation of the continuous pith by plates of stone cells , while in Juglans there is decided septation but the diaphragms are not sclerotic , and the pith is not con- tinuous between the disks . On account of these and other ...
Stranica 11
... distinct parts , viz . , ( 1 ) the protoderm at the outside , ( 2 ) the procambium strands , and ( 3 ) the fundamental or ground meristem . These three regions or tissues are themselves subject to further differentiation and are called ...
... distinct parts , viz . , ( 1 ) the protoderm at the outside , ( 2 ) the procambium strands , and ( 3 ) the fundamental or ground meristem . These three regions or tissues are themselves subject to further differentiation and are called ...
Stranica 18
... distinct transition to the vessels in the detailed structure of their walls and in the occasional presence of perforations at the ends of the cells . References PENHALLOW , D. P .: North American Gymnosperms , pp . 33-58 . DEBARY , A ...
... distinct transition to the vessels in the detailed structure of their walls and in the occasional presence of perforations at the ends of the cells . References PENHALLOW , D. P .: North American Gymnosperms , pp . 33-58 . DEBARY , A ...
Stranica 22
... distinct as the rays , while in Diospyros ( Plate IV , Fig . 2 ) the lines are finer than the rays and very indistinct . In Tilia wood parenchyma is in tangential lines , but is not so disposed in Liriodendron , Magnolia , and Esculus ...
... distinct as the rays , while in Diospyros ( Plate IV , Fig . 2 ) the lines are finer than the rays and very indistinct . In Tilia wood parenchyma is in tangential lines , but is not so disposed in Liriodendron , Magnolia , and Esculus ...
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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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