Observing Trees

One fall an unexpected snowstorm weighted the trees with more snow than some could handle.  There were a lot of downed trees!  Happily, this meant a friend was able to get me these different wood rounds for observing in Natural History.  This was good for seeing the inner parts of the tree--the cambium is bright orange on that bottom white birch slice, while the top slice of red oak has heartwood tinged pink in comparison to the paler sapwood.  I had the students observe and try to guess what trees had yielded these.  They were using past observations and what they had read in Charles Fergus' Trees of New England.  Since these slices were fresh (less than a year old), the colors are still bright.  In time that yellow slice (pin cherry) will fade, as will the others.

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