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 19
... Toxylon they are in rather large , compact masses in the late wood , separated by groups or bands of pores and parenchyma . In any wood in which they occur they are most abundant in the median portion of the growth ring , and material ...
... Toxylon they are in rather large , compact masses in the late wood , separated by groups or bands of pores and parenchyma . In any wood in which they occur they are most abundant in the median portion of the growth ring , and material ...
Stranica 35
... Toxylon ) where they may be considerably thickened , sometimes becoming sclerotic . Tyloses in large vessels are plainly visible to the unaided eye , their high lustre giving them the appearance of froth . Tyloses are cells which have ...
... Toxylon ) where they may be considerably thickened , sometimes becoming sclerotic . Tyloses in large vessels are plainly visible to the unaided eye , their high lustre giving them the appearance of froth . Tyloses are cells which have ...
Stranica 44
... Toxylon , Sassafras , Morus , Gymnocladus , Juniperus , and Taxus , while in others such as Hicoria , Acer , Fraxinus , Celtis , and Fagus , thick sapwood is the rule . The fact that sapwood occupies the peripheral layers of the stem ...
... Toxylon , Sassafras , Morus , Gymnocladus , Juniperus , and Taxus , while in others such as Hicoria , Acer , Fraxinus , Celtis , and Fagus , thick sapwood is the rule . The fact that sapwood occupies the peripheral layers of the stem ...
Stranica 51
... Toxylon pomiferum . .77 Fraxinus pennsylvanica . .63 Quercus laurifolia . .77 Larix americana . .62 Prosopis juliflora . .77 Acer rubrum . .62 Betula lenta ... .76 Juglans nigra .. .61 Quercus imbricaria . .75 Pinus echinata .. .61 ...
... Toxylon pomiferum . .77 Fraxinus pennsylvanica . .63 Quercus laurifolia . .77 Larix americana . .62 Prosopis juliflora . .77 Acer rubrum . .62 Betula lenta ... .76 Juglans nigra .. .61 Quercus imbricaria . .75 Pinus echinata .. .61 ...
Stranica 64
... Toxylon shows narrow streaks of red ; Liquidambar shows black streaks that usually give the finished lumber a handsome watered effect ; Liriodendron varies from deep iridescent blue to yellowish brown ; Robinia varies from light straw ...
... Toxylon shows narrow streaks of red ; Liquidambar shows black streaks that usually give the finished lumber a handsome watered effect ; Liriodendron varies from deep iridescent blue to yellowish brown ; Robinia varies from light straw ...
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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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