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Photographic gallery.  Thousands of particles under the microscope.
Pinus Ponderosa, Ponderosa Pine Cross Section

Pinus Ponderosa, Cross-Section

This is an image from a stained standard section of Pinus ponderosa made by John P. Limbach of Ripon, Wisconsin.

Transmitted Off Circular Polarized Light Illumination


Significance in the Environment:

Characteristic Features:

Associated Particles: