forestry 280 features of woods 48-56
DESCRIPTION
Forestry 280 Features of Woods 48-56. Avg. SG: 0.45 Heartwood Color: Grey or grayish brown Heartwood Odor: Spicy odor and taste Pore Distribution: Ring-porous Earlywood: 3-8 pores wide; pores medium to large - PowerPoint PPT PresentationTRANSCRIPT
Forestry 280Features of Woods 48-56
#48: Sassafras Sassafras albidum
Avg. SG: 0.45 Heartwood Color: Grey or
grayish brown Heartwood Odor: Spicy odor
and taste Pore Distribution: Ring-porous Earlywood: 3-8 pores wide;
pores medium to large Latewood: Pores solitary and in
radial multiples of 2-3, forming fine tangential lines in outer latewood
Tyloses: Fairly abundant Rays: Barely visible to eye
#49: Black Cherry Prunus serotina
Avg. SG: 0.50 Heartwood Color: Light to dark
cinnamon or reddish brown Pore Distribution: Diffuse-
porous Pores: Pores through growth ring
solitary and in radial or irregular multiples and small clusters
Gum Defects: Common Rays: Not visible on tangential
surface; conspicuous light ray fleck on radial surfaces; distinct whitish lines across transverse surface (distinct to naked eye)
#51: Common Persimmon Diospyros virginiana
Heartwood Color: Core dark, nearly black
Sapwood Color: Creamy white, darkening to yellow or light grey
Pore Distribution: Semi-ring-porous
Pores: Largest pores medium to large, thick walled; appear to be relatively few; solitary or in radial multiples
Tyloses: Occasionally present Parenchyma: Fine tangential lines Rays: Fine, visible w/lens Ripple Marks: On tangential
surfaces; denotes storied structure
#52: Eastern Cottonwood Populus deltoides
Avg. SG: 0.40 Heartwood Color: Grayish to
light grayish brown, sometimes with olive cast
Odor: Moist wood with foul odor (not universal)
Pore Distribution: Diffuse-porous or semi-diffuse porous
Pores: Medium to small, solitary and in radial multiples of 2 to several
Rays: Very fine, not easily seen with lens
#54: Black Willow Salix nigra
Avg. SG: 0.39 Heartwood Color: Light brown
to pale reddish or grayish brown, frequently with dark streaks
Pore Distribution: Diffuse-porous to semi-diffuse-porous
Pores: Medium to small, usually with apparent size gradation from earlywood to latewood, solitary and in multiples of 2 to several. Pores typically much more visible (larger) than in cottonwood and aspen
Rays: Very fine, barely visible w/hand lens
#53: Quaking Aspen Populus tremuloides
Avg. SG: 0.38 Heartwood Color: Creamy
white to light grayish brown Pore Distribution: Diffuse-
porous Pores: Small to very small,
w/gradation from earlywood to latewood, solitary and in multiples of 2 to several
Rays: Very fine, not easily seen w/hand lens
NOTE: Don’t separate #52 and #53
#55: American Hornbeam Carpinus caroliniana
Heartwood Color: Pale yellowish or brownish white
Pore Distribution: Diffuse-porous
Pores: Indistinct without a hand lens
Rays: Two types: Narrow and aggregate; wide aggregate rays are fairly abundant
Other: Wood heavy and hard; often has wavy growth ring boundaries
#56: Eastern Hophornbeam Ostrya virginiana
Heartwood Color: Whitish to light brown tinged with red
Pore Distribution: Diffuse-porous
Pores: Indistinct or barely visible to the eye; often aggregated into flame-shaped groups
Rays: Fine, indistinct, closely spaced (NOTE: no aggregate rays as in #55)
Other: Wood heavy and very hard; growth rings often with “ragged contours”
Acknowledgement Photomacrographs by Zach Kriess Supplemental photomacrographs (those with
white text showing scientific name) courtesy of the USDA Forest Service, Forest Products Laboratory