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THIN SECTIONS of a TWIG from a FIR TREE
by Eckhard Völcker (Tatcher a Hainu on Flickr)

Fir, Abies sp.
This cut is from a twig of a fir tree in front of our house. 

  1. 5x magnification
  2. 10x — details of the bark in polarized light
  3. 10x — trichrome staining with acridine red, acriflavine, and astra blue; the red cushions are the bark.
  4. 20x 

Made with Flickr