Ashed Blue Spruce Needles Under the Microscope

Charred Blue Spruce Needle

This is ash from Blue Spruce needles. This is from a batch of Blue Spruce needles that were ashed in a muffle furnace. Typical pyrolized calcium oxalate phytoliths are present along with the silica cast of the epithelium.

Transmitted Off Crossed Polarized Light and Reflected Darkfield Illumination

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