Marijuana Leaf stem, SEM

An optical image of the cross section of a leaf support (petiole). The notch in the structure points up and is believed to be associated with water flow over the leaf structure. The center of the structure is where the pith cells are located, in a mature leaf the center section would be completely filled with pith cells. This section has been dyed with neutral red and brilliant crystal blue. This picture of the petiole shows a 3mm wide field of view. This sample was stained to highlight cell structures.

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Filename: K13SEM-cannabis49.jpg
Copyright: Ted Kinsman / Science Source Inc.
Image Size: 5306x5700 / 14.4MB; biological biology botanical botany cannabis sativa colored cystolith drug drugs epidermis false flora glandular green hair hairs hashish hemp leaf leaves lithocyst lithocysts marijuana narcotic narcotics nature plant plants resin scanning electron micrograph scanning electron microscope sem stem stems tetrahydrocannabinol thc trichome trichomes
Contained in galleries: Cannabis

An optical image of the cross section of a leaf support (petiole). The notch in the structure points up and is believed to be associated with water flow over the leaf structure. The center of the structure is where the pith cells are located, in a mature leaf the center section would be completely filled with pith cells. This section has been dyed with neutral red and brilliant crystal blue. This picture of the petiole shows a 3mm wide field of view. This sample was stained to highlight cell structures.