108-00330
WHITE ELM POLLEN x500 Ulnus americana
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108-00330
WHITE ELM POLLEN x500 Ulnus americana
353-05988
DIVARICATE BUD SLIPPERY ELM ulmus rubra DIVERGENT
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353-05988
DIVARICATE BUD SLIPPERY ELM ulmus rubra DIVERGENT
353-04038
Stop spread of Dutch Elm Disease sign Sas. Canada
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353-04038
Stop spread of Dutch Elm Disease sign Sas. Canada
264-04684
hand holding test tube with elm seedling
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264-04684
hand holding test tube with elm seedling
264-04685
hand holding test tube with elm seedling
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264-04685
hand holding test tube with elm seedling
353-00555
American Elm, Netted Pinnate Leaf Venation
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353-00555
American Elm, Netted Pinnate Leaf Venation
353-00559
Crenate And Double Serrate Various Margins
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353-00559
Crenate And Double Serrate Various Margins
353-00566
Truncate, Cordate, And Oblique Leaf Bases
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353-00566
Truncate, Cordate, And Oblique Leaf Bases
276-00158
DUTCH ELM DISEASE FRANCE TREE DISTRUCTION
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276-00158
DUTCH ELM DISEASE FRANCE TREE DISTRUCTION
218-01388
AMERICAN ELM LEAVES Ulmus americana
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218-01388
AMERICAN ELM LEAVES Ulmus americana
264-02466
ASIAN LONGHORN BEETLE BORE HOLES IN ELM TREE
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264-02466
ASIAN LONGHORN BEETLE BORE HOLES IN ELM TREE
225-03274
ELM LEAF BEETLE LARVA Xanthogaleruca luteola
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225-03274
ELM LEAF BEETLE LARVA Xanthogaleruca luteola
264-02209
YOUNG WOMAN & CHILDREN TREATING DUTCH ELM DISEASE
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264-02209
YOUNG WOMAN & CHILDREN TREATING DUTCH ELM DISEASE
264-02212
YOUNG WOMAN CHILDREN TREATING DUTCH ELM DISEASE
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264-02212
YOUNG WOMAN CHILDREN TREATING DUTCH ELM DISEASE
264-02213
AMERICAN ELM BEING TREATED FOR DUTCH ELM DISEASE.
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264-02213
AMERICAN ELM BEING TREATED FOR DUTCH ELM DISEASE.
264-02216
AMERICAN ELM BEING TREATED FOR DUTCH ELM DISEASE.
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264-02216
AMERICAN ELM BEING TREATED FOR DUTCH ELM DISEASE.