Diatoms are microscopic algae composed of separate halves, with delicate siliceous cell walls. They're usually single-celled organisms, though some live colonially. They inhabit fresh and salt waters and are among the most abundant of all phytoplankton.
Austrian Centre for Electron Microscopy and Nanoanalysis F E L M I - Z F E
Morning Glory flowers have some of the coolest looking pollen. This is a single Morning Glory pollen grain, still sitting on an anther. Captured with a Scanning Electron Microscope (SEM).Colored in Photoshop. Magnification 500X