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Alnus glutinosa (L.) Gaertn. (European black alder), trunk, bark2005 – 2012
Hagstrom, John
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Euonymus bungeanus Maxim. (Manchurian spindle tree), bark2005 – 2012
Hagstrom, John
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Alnus glutinosa (L.) Gaertn. (European black alder), bark, trunk2005 – 2012
Hagstrom, John
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Cryptomeria japonica (L. f.) D. Don (Japanese-cedar), bark2005 – 2012
Hagstrom, John
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Metasequoia glyptostroboides Hu & W. C. Cheng (dawn-redwood), bark2005
Hagstrom, John
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Albizia julibrissin var. rosea (Carriere) Mouillefert (pink silk-tree), bark2005 – 2012
Hagstrom, John
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Abies concolor (Hook.) Nutt. (white fir), trunk, bark
August 13 2003
Hedborn Jr., Edward A.
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Celtis occidentalis (hackberry), mature bark and buds detailApril 1978
Kohout, Kitty
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Acer saccharum (sugar maple), bark
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Betula nigra 'Little King' (FOX VALLEY® river birch), trunk 2005 – 2012
Hagstrom, John