A flower’s inner beauty unfurls like transparent butterfly wings in Steven Meyers’ “Eucalyptus.” Originally shooting landscapes, Meyers immersed himself in X-ray photography, a nearly unexplored art which reveals invisible forms through negatives, positives, and combinations of both. An MRI tech for 25 years, Meyers began exploring floral X-rays in 1975, now searches in the grocery store for new subjects.