Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
Scan of green leaves of a cherry tree with petioles. Vintage deciduous herbarium background on a sheet of old textured paper. Pressed and dried herbs. Fine artistic composition composed of dry flat leaves.
plant Zea Stem C.S. under light mircoscope with white background
Amphora sp. algae under microscopic view pattern, Diatoms, phytoplankton, fossils, silica, golden yellow algae
Antique hand printed and colored plate from the 1652 Herbal of Nicolas Culpepper. This plate is from an edition in 1814 and shows images of thistles and other plants.
100 Bulgarian lev banknote for design purpose
Photomicrograph of Volvox globator, a green algae. Dark green spots are daughter colonies forming inside of parent colony. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
Antique yellow gloster pattern paper marbling full frame.
transparent adhesive round plastic sticker label isolated on black background
Vintage herbarium on an old textured brown aged paper. Composition of the dry pressed herbs.
plant rape flower cross section under light mircoscope with white background
microscopic cross section cut
Abstract blue cell pattern, spots, cool, virus, background effect, texture
black and white leaf patterns background unit isolate
Abstract nano molecular structure
Host cells with spores (mold) are inside wood under the microscope for education.
Antique red paper marbling background texture.
Lunaria annua, Honesty or money plant dried photogram
In vitro bacterial culture
Schematic illustration of mushroom growth
Old orange and black scuffed damaged marbled paper, Original over 150+ years old
All parts of Portulaca oleracea or purslane are edible raw or cooked and used in folk medicine
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.
Vintage press and dry green leaf herbarium background on old paper. Scanned image.
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
Basil seeds in syrup in bowl on yellow background.
In vitro bacterial culture
plant stem cross section under a microscope
Pattern Design on Banknote
Moleskine texture color cover on white background
Chinese lantern
Free Images: "bestof:Micrographia Schem 20.jpg Schem XX - Of Purslane-seed 1665 Inc on Paper Institution National Library of Wales object history credit line accession number"
Terms of Use   Search of the Day