A look inside a leaf
Micro World Wallpaper
Would you believe that it is a cross section of Cyperus alternifolius (umbrella plant) with intense UV-induced blue-green and chlorophyll (red) fluorescence. The cells with intense red fluorescence are mesophyll cells, while the cells which are highly blue fluorescent are part of the leaf's vascular tissue (e.g. xylem and phloem).