Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
Probiotics, bacteria on white background. Bacteria and microorganisms. Microscopic probiotics, bacterial flora
Micrograph of a moss leaf, Dicranum, with elongated cells, and an elongated midrib (costa) that may be the water conducting cells of the leaf, with polarization at 200x.
plant Zea Stem C.S. under light mircoscope with white background
Light photomicrograph of pine tree wood seen through a microscope
Abstract leaf macro background: Moss
Alternaria spore was zoom by transmission electron microscope. Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens.
Colorful seamless pattern with Crystal stones.
Squash preparation of stained onion root tip cells showing various stages of mitosis. Differential interference contrast optics on a Leica microscope, Image taken with the X40 objective lens.  Depth of focus is extremely shallow (just a few microns).  Differential interference contrast results in an optical slice horizontally through the specimen providing maximum possible resolution at this magnification and good contrast. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Striatella unipunctata algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
Spore bags of helminthosporium contain 8 cells. This disease causes helminthosporiosis of wheat. Soon very small and quite harmful.
Pattern Design on Banknote
Photomicrograph of stomata of leaf. Typical monocot distribution of stomata. Epidermis peeled from iris leaf. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination.
Crystals of soy sauce under the microscope.
Microscopic view of Dermatophytes. Nail scraping fungus. 100X
Fossil Fern inside a rock. The fossil is more than 100 mio Years old.
Light photomicrograph of pine tree wood seen through a microscope
Curly marble stone with fashion veins.
Probiotics, bacteria on white background. Bacteria and microorganisms. Microscopic probiotics, bacterial flora
Micro world
Hair fibers from the calyptra of Orthotrichum moss, with polarization at 200x, from East Windsor, Connecticut.
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.
Close up of banana leaf in the garden. Abstract nature background.
3d rendering of Fluid painting, abstract colorful liquid texture background.
Host cells with spores (mold) are inside wood under the microscope for education.
Fossil Fern inside a peace of slate. The fossil is more than 100 mio Years old.
Blue green algae under microscopic view, cyanobacteria, gram-negative bacteria that obtain energy via photosynthesis
Close-up shooting of a green agate stone mineral surface isolated on white background. Its a macro shot shows nature beautiful details with back lit. Agate is a kind of natural gemstone. Abstract pattern. Good for Wallpaper texture background. Turquoise, green\n\n.
microscopic cross section cut
abstract imagery of a fusion of colors and surfaces
Free Images: "bestof:Rhynioclad.gif Cladogram showing rhyniophytes own 3 July 2001 uploaded 24 Jan 2008 EncycloPetey Devonian plants Extinct plants Aglaophyton Rhynia Phylogenetic"
Cordaites lungatus JdP.jpg
Painted plants fresco Pompeii Italy.jpg
Picea abies stem top close up.jpg
Tour EIffel p14.JPG
Peacock Butterfly showing proboscis.jpg
Plant-texture.jpg
Plants in Kew Gardens 1.JPG
Todbjerg Tower in winter.JPG
Historic-town-Stralsund.jpg
Beach of Rethimno.jpg
Marble plaque pomegranate Granada Spain.jpg
Capitol dome 906.JPG
Phoenix canariensisLux.jpg
Persea indica Spreng. JdP 2011.jpg
Pittosporum tobira (Thunb.) W. T. Aliton JdP.jpg
Pennisetum villosum 002.jpg
Canna marabout Jardin des Plantes.jpg
Victoria amazonica, 2015-08-08, Phipps Conservatory, 01.jpg
Victoria amazonica, 2015-08-08, Phipps Conservatory, 02.jpg
Victoria amazonica, 2015-08-08, Phipps Conservatory, 03.jpg
Victoria amazonica, 2015-08-08, Phipps Conservatory, 05.jpg
Victoria amazonica, 2015-08-08, Phipps Conservatory, 06.jpg
Victoria amazonica, 2015-08-08, Phipps Conservatory, 07.jpg
Iris domestica, Phipps Conservatory Outdoor Garden,, 2015-10-01, 01.jpg
Iris domestica, Phipps Conservatory Outdoor Garden,, 2015-10-01, 02.jpg
Salvinia natans JdP.jpg
Caesalpinia gilliesii JdP.jpg
Senecio vira-vira JdP.jpg
Artichaut 1 JdP.jpg
Panicum virgatum JdP.jpg
Nymphoides peltata JdP.jpg
Photinia serratifolia JdP.jpg
Euphorbia marginata JdP.jpg
Artichaut 2 JdP.jpg
Dipsacus laciniatus L. Cardère découpée JdP.jpg
Courge Butternut Zenith horticole.jpg
Sunset backlight of dates.jpg
Conifer cone park.jpg
Leaning tree near beach.jpg
Close up of a dogwood blossom flower.jpg
Eye painted platanum trunk.jpg
Asimina triloba (L.) Dunal JdP.jpg
Harmony triumphing over Discord Quadriga Récipon Grand Palais Paris.jpg
Amanita-muscaria-side-inversnaid.jpg
David_Addington_Talks_with_Vice_President_Cheney_in_the_West_Wing_Hallway.jpg
David_Addington_Talks_with_Vice_President_Cheney_in_the_West_Wing_Hallway.jpg
David_Addington_Talks_with_Vice_President_Cheney_in_the_West_Wing_Hallway.jpg
Vice_President_Cheney_with_David_Addington_in_the_West_Wing_Hallway.jpg
David_Addington_Talks_with_Vice_President_Cheney_in_the_West_Wing_Hallway.jpg
Leaf epidermis.jpg
David_Addington_Talks_with_Vice_President_Cheney_in_the_West_Wing_Hallway.jpg
Conifer cones trees.jpg
Fresh Cupressus sempervirens cones.jpg
Pinus brutia, Antalya, Turkey.jpg
Amiral Edouard Guillaud, chef d'état-major des armées françaises 14 juillet 2012 Paris.jpg
French archaeologists at work 2015 Pompeii.jpg
Ilex aquifolium L. JdP.jpg
Playing with water, light and leaves (Fagus sylvatica).JPG
macropis_europea,_f,_austria,_face_2014-11-04-11.32.24_ZS_PMax.jpg
Melissodes_lustra,_F,_Back,_CA,_Santa_Barbara_County_2014-06-17-16.24.12_ZS_PMax.jpg
Tree branch after ice storm.JPG
Clitoria ternatea.jpg
Extreme close up of a dogwood blossom.jpg
Higo chumbo cactus harrisia portoricensis.jpg
Ipomoea alba Alhambra Spain.jpg
Clark fork Missoula river.jpg
Pork_packing_in_Cincinnati_1873.jpg
Paeonia Hai Huang 2016 G2.jpg
Viscum album section 2011 G1.jpg
Juglans regia 2009 G2.jpg
Uva de playa (Coccoloba uvifera).jpg
Common Jezebel Delias eucharis by kadavoor 3.jpg
Catopsilia pomona 3 by kadavoor.jpg
Porträtt,_Rudolf_II_som_Vertumnus._Guiseppe_Arcimboldo_-_Skoklosters_slott_-_87582.jpg
Rosales kladogram.svg
Nothia aphylla rhizomes reconstruction.svg
Bliss - hue histogram.svg
Japan Electricity Production.svg
Nothia aphylla fertile stem reconstruction.svg
Tree of life SVG.svg
Utah Data Center of the NSA in Bluffdale Utah vector.svg
Atmosphaerenzusammensetzung.svg
SLNSW 14055 Field testing growing plants Agriculture Department taken for Dr Edwards agricultural writer for Smiths Weekly.jpg
AmesHydro,CO.jpg
Number of snake envenomings.svg
Portret van Jan Valckenburgh Rijksmuseum SK-A-4969.jpeg
David Teniers the Younger - Archduke Leopold Wilhelm in his Art Gallery in Brussels.jpg
DJIA historical graph to jul11 (log).svg
CPT-OOP-interfaces.svg
Population curve.svg
Japan Electricity Production 1980-2014.svg
PD Diagram of swine flu symptoms EN.svg
Diagram of swine influenza symptoms EN.svg
Homicide in the United States.svg
Ipod sales.svg
RomanEmpire 117.svg
RomanEmpire 117 es.svg
US_nuclear_strike_map.svg
Moon's_hardy_trees_and_plants_for_every_place_and_purpose_(16146608303).jpg
Évolution nombre étrangers Polytechnique.svg
Terms of Use   Search of the Day