Description
A microscope slide with a cross-section of a Helianthus (sunflower) stem showing distinct vascular bundles in a circle around a large central pith. Typical annual dicot stem. Quadruple stain.
A microscope slide with a cross-section of a Helianthus (sunflower) stem showing distinct vascular bundles in a circle around a large central pith. Typical annual dicot stem. Quadruple stain.