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Spore bags of helminthosporium contain 8 cells. This disease causes helminthosporiosis of wheat. Soon very small and quite harmful.
Trematode parasite under a microscope
Notoedres cati under the microscope. Notoedric mange, also referred to as Feline scabies, is a highly contagious skin infestation caused by an ectoparasitic and skin burrowing mite Notoedres cati.
Squash preparation of  onion root tip cells stained to reveal chromosomes,  Bright field illumination, light microscopy.  This image was taken with the X40 objective lens.  Depth of focus is extremely low at this magnification.  Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced.  The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Demodex folliculorum - parasitic mite on the eyelashes of a human eye, microscope
Cheyletiella blakei Mite - Small Cat pest view under a microscope
Freshwater aquatic zooplankton and algae under microscope view
Photomicrograph of rotifer, probably Rotaria rotatoria. Rapidly rotating cilia at top of head, internal organs visible. Green circles are algae. Live specimen. Original image at 40X, wet mount, transmitted brightfield illumination. Indistinct image due to motion blur of live specimen and very shallow depth of field of brightfield illumination.
coccidae insect habitat on wild plants, North China
plant Pine Stem C.S. under light mircoscope with white background
Flukes infestation (parasite) under microscope view.
Beautiful plant, Indian head ginger, also known as Crape ginger, Malay ginger, Spiral Flag, or Wild ginger, low angle view, front shot, growing and symbiotic partnership with ant in tropical moist montane forest, national park in northern Thailand.
Tardigrade (water bear) isolated from moss. Microscopic picture, 40 times magnified.
Lichen on the forest floor.
Ephestia elutella, wing of grain moth with scales macro close up under the light microscope, magnification of 40 times, microscope objective 4
Vivid insect on a flowering stem
Algae, a unicellular organism, diatoms
Close up of June bug covered in pollen on white Sweet Autumn Clematis
amazing inhabitants of the microworld under a microscope
Cheyletiella blakei Mite - Small Cat pest view under a microscope
Alternaria spore was zoom by transmission electron microscope. Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens.
Some amoebas like this one form shells. Shell is composed of bits of rock (sand), diatom shells, and other debris. Fresh water. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
close - up of a cat, isolated on white background
Arctostaphylos uva-ursi is a plant species of the genus Arctostaphylos (manzanita). Its common names include kinnikinnick,  pinemat manzanita and bearberry.  Yellowstone National Park, Wyoming.
Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
Taenia Pisiformis Section under light microscope with white background
Mosquito closeup from microscope.
Pretty little wildflower.
microscopic view of plant cells for botanic education and analysis
Foliage and small yellow flowers on California bay tree, Umbellularia californica. Leaves used as a substitue for sweet bay leaves in cooking. Sunol Wilderness Regional Park, California, scanned film.
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