pine pollen from a conifers tree, whole mount, 80x light micrograph

pine pollen micrograph microscope grains pinus conifer tree pollen pine winged mount specimen wm wings wing entire conifer photomicrograph light light stained stain 80x magnified magnification detail close-up plant histology microanatomy sample microscopy visual microsection slide micro botany botanical biology microbiology science research lab education isolated cut white background