Stamp 4 substitute paper/ordinary paper
9 July 2018
28 steps 0.9 microns apart
ray tracheid (single water-conducting cell) of pine with bordered pits for neighbouring cells to transfer fluid.
lightened using curves, converted to b/w with all filters set to 0 and cropped
Nikon Ni-E, Nikon DS-Ri2 ©Lin Yangchen
Caution: this sample was macerated in tap water
nikon ds ri2nikon ni emicroscopyphotomicrographplant fibrepaperfibre analysisanalytical philatelymalayasmall heads issuepostage stampDICnomarskide la rueordinary papersubstitute paperbma malaya