Spruce Resin Canals
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Resin canals in spruce (
Picea
), Larch (
Larix
), and Douglas-fir (
Pseudotsuga
)
occur in tangential groups of two to several. The 40x image above is taken from a fossil spruce (
Picea
) from Vantage, Washington.
©Copyright 2008 by Mike Viney
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