Preview Light Micrograph (LM) of a transverse section of a Helianthus stem, magnification x 18 Image ID: 823-519 Artist: Last Refuge Purchase a commercial license Buy framed prints & more from our print store color image travel photography travel destinations day indoors abstracts nature natural world botany detail details close up close ups red backgrounds light micrograph light micrographs science magnification helianthus blue horizontal circle circles micrograph micrographs photomicroscopy