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Abies sp. (fir), needles
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Education charts: Rocky Mountains
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White (single) spruce = [graphic] Abies alba / Bessa delt. Bocquet Sct.1810
Bessa, Pancrace, 1772-approximately 1835.
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Tsuga sp., needles (left), Abies sp., needles (bottom), Picea sp., needles (right)February 1969