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oxyacantha) Laburnum, Goldenchain (Laburnum anagyroides) Locust: Black (Robinia pseudo-acacia) Honey (Gleditsia trai- canthos) Madrona, Pacific (Arbutus men- ziesii) Oak, Scarlet (Quercus coccinea) Pine, Austrian (Pinus nigra) Sassafras (Sassafras albidum) Class No. 4—40% Araucaria, Monkey-puzzle (Arau- caria araucana) Arborvitae, Giant (Thuja pli- cata) Catalpa, Southern (Catalpa big- nonioides) Fir, Common Douglas (Pseudot- suga taxifolia) Horsechestnut (Aesculus hippo- castanum) Ivy, English (Hex aquifolium) Willow, Babylon Weeping (Salix babylonica) Class No. 5—20% Ash, Oregon (Fraxinum oregona) Maple: Big-leaf (Acer macro- |
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