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  • An x-ray of ginko leaves.(Ginkgo biloba) also known as the maidenhair tree. The leaves are unique among trees in that they have no midrib and no network of veins; rather the venation consists of aconstantly branching fan from the base of the leaf.  Ginkgo biloba leaves and fruit are used in many herbal preparations.
    ginkgo3fix11x14levels.jpg
  • Japanese Red Maple Leaves (Acer palmatum). This common decorative tree drops its characteristic red leaves all at once usually during a hard rain in the fall.
    IMG_3781.jpg
  • X-ray of oak leaves and acorns from a Pyrenean Oak (Quercus pyrenaica)
    K08XrayA2-oakleaf8.jpg
  • X-ray of oak leaves and acorns from a Pyrenean Oak (Quercus pyrenaica)
    K08Xray-oakleaf-single2.jpg
  • X-ray of oak leaves and acorns from a Pyrenean Oak (Quercus pyrenaica)
    K08XrayA5-oakleaf8.jpg
  • X-ray of oak leaves and acorns from a Pyrenean Oak (Quercus pyrenaica)
    K08XrayA2-oakleafsingle1.jpg
  • Scanning Electron Microscope (SEM) image of Catnip (Nepeta cataria) (mint family). The field of view of this image is 2mm. Catnip grows throughout North America and is extremely attractive to cats. Tea made from Its leaves and flowering tops has been a folk remedy for bronchitis, colds, diarrhea, fever, chicken pox, colic, headache, and irregular menstruation. It is believed to induce sleep, promote sweating, and alleviate restlessness in children. Nepetalactone present in the leaves acts as a mild sedative and has herbicidal and insect repelling properties.
    K18catnip10panoD.jpg
  • Scanning Electron Microscope (SEM) image of Catnip (Nepeta cataria) (mint family). The field of view of this image is 2mm. Catnip grows throughout North America and is extremely attractive to cats. Tea made from Its leaves and flowering tops has been a folk remedy for bronchitis, colds, diarrhea, fever, chicken pox, colic, headache, and irregular menstruation. It is believed to induce sleep, promote sweating, and alleviate restlessness in children. Nepetalactone present in the leaves acts as a mild sedative and has herbicidal and insect repelling properties.
    K18catnip10panoB.jpg
  • Scanning Electron Microscope (SEM) image of Catnip (Nepeta cataria) (mint family). The field of view of this image is 2mm. Catnip grows throughout North America and is extremely attractive to cats. Tea made from Its leaves and flowering tops has been a folk remedy for bronchitis, colds, diarrhea, fever, chicken pox, colic, headache, and irregular menstruation. It is believed to induce sleep, promote sweating, and alleviate restlessness in children. Nepetalactone present in the leaves acts as a mild sedative and has herbicidal and insect repelling properties.
    K18catnip10panoC.jpg
  • A new born fawn hides in the leaves in teh spring waiting for it's mother to return to feed it.  This fawn is less than 24  hours old and was photographed on May 22 in New York State.  White-tailed Deer (Odocoilieus virginianus) fawn in camouflage among fall leaves.
    K14-fawn0800.JPG
  • A new born fawn hides in the leaves in teh spring waiting for it's mother to return to feed it.  This fawn is less than 24  hours old and was photographed on May 22 in New York State.  White-tailed Deer (Odocoilieus virginianus) fawn in camouflage among fall leaves.
    K14-fawn0798.JPG
  • A seedling of the coca plant (Erythroxylon coca). The leaves contain the stimulant chemical cocaine. They can be chewed to produce a mild stimulant effect, or made into an infusion. The plant is native to the slopes of the Andes in South America, where indigenous people have used it for centuries. The leaves can also be processed to extract pure cocaine. For this reason the cultivation of the plant is controversial.
    K17cocaineplant-5.jpg
  • A seedling of the coca plant (Erythroxylon coca). The leaves contain the stimulant chemical cocaine. They can be chewed to produce a mild stimulant effect, or made into an infusion. The plant is native to the slopes of the Andes in South America, where indigenous people have used it for centuries. The leaves can also be processed to extract pure cocaine. For this reason the cultivation of the plant is controversial.
    K17cocaineplant-2.jpg
  • X-ray of a Rhubarb leaf (Rheum sp. ) leaves and stalks. The stalks are eaten, and are a good source of vitamin C (ascorbic acid). The leaves contain oxalic acid, however, and are toxic.
    K15Xrhubarb01.jpg
  • A new born fawn hides in the leaves in teh spring waiting for it's mother to return to feed it.  This fawn is less than 24  hours old and was photographed on May 22 in New York State.  White-tailed Deer (Odocoilieus virginianus) fawn in camouflage among fall leaves.
    K14-fawn0802.JPG
  • An X-ray of an Acanthus flowering stem (Acanthus mollis). Native to the Mediterranean with lobed leaves with spiny margins and showy spikes. This plant is also called Bear's breech. A design patterned after acanthus leaves is often found on Corinthian columns.
    X11-acanthusflower1C.jpg
  • An X-ray of an Acanthus flowering stem (Acanthus mollis). Native to the Mediterranean with lobed leaves with spiny margins and showy spikes. This plant is also called Bear's breech. A design patterned after acanthus leaves is often found on Corinthian columns.
    X11-acanthusflower1BW.jpg
  • A seedling of the coca plant (Erythroxylon coca). The leaves contain the stimulant chemical cocaine. They can be chewed to produce a mild stimulant effect, or made into an infusion. The plant is native to the slopes of the Andes in South America, where indigenous people have used it for centuries. The leaves can also be processed to extract pure cocaine. For this reason the cultivation of the plant is controversial.
    K17cocaineplant-7.jpg
  • A seedling of the coca plant (Erythroxylon coca). The leaves contain the stimulant chemical cocaine. They can be chewed to produce a mild stimulant effect, or made into an infusion. The plant is native to the slopes of the Andes in South America, where indigenous people have used it for centuries. The leaves can also be processed to extract pure cocaine. For this reason the cultivation of the plant is controversial.
    K17cocaineplant-6.jpg
  • X-ray of a Rhubarb leaf (Rheum sp. ) leaves and stalks. The stalks are eaten, and are a good source of vitamin C (ascorbic acid). The leaves contain oxalic acid, however, and are toxic.
    K15Xrhubarb01B.jpg
  • A new born fawn hides in the leaves in teh spring waiting for it's mother to return to feed it.  This fawn is less than 24  hours old and was photographed on May 22 in New York State.  White-tailed Deer (Odocoilieus virginianus) fawn in camouflage among fall leaves.
    K14-fawn0794.JPG
  • A new born fawn hides in the leaves in teh spring waiting for it's mother to return to feed it.  This fawn is less than 24  hours old and was photographed on May 22 in New York State.  White-tailed Deer (Odocoilieus virginianus) fawn in camouflage among fall leaves.
    K14-fawn0791.JPG
  • An X-ray of an Acanthus flowering stem (Acanthus mollis). Native to the Mediterranean with lobed leaves with spiny margins and showy spikes. This plant is also called Bear's breech. A design patterned after acanthus leaves is often found on Corinthian columns.
    X11-acanthusflower1D.jpg
  • X-ray of a Rhubarb leaf (Rheum sp. ) leaves and stalks. The stalks are eaten, and are a good source of vitamin C (ascorbic acid). The leaves contain oxalic acid, however, and are toxic.
    K15Xrhubarb01C.jpg
  • Scanning Electron Microscope (SEM) image of Catnip (Nepeta cataria) (mint family). The field of view of this image is 2mm. Catnip grows throughout North America and is extremely attractive to cats. Tea made from Its leaves and flowering tops has been a folk remedy for bronchitis, colds, diarrhea, fever, chicken pox, colic, headache, and irregular menstruation. It is believed to induce sleep, promote sweating, and alleviate restlessness in children. Nepetalactone present in the leaves acts as a mild sedative and has herbicidal and insect repelling properties.
    K18catnip10panoA.jpg
  • A new born fawn hides in the leaves in teh spring waiting for it's mother to return to feed it.  This fawn is less than 24  hours old and was photographed on May 22 in New York State.  White-tailed Deer (Odocoilieus virginianus) fawn in camouflage among fall leaves.
    K14-fawn0796.JPG
  • Scanning Electron Micrograph (SEM) of a cross section of marijuana (Cannabis sativa) seed, showing the root and seed leaves enclosed. The field of view of this image is 4 mm in the horizontal direction.
    K170613cola-seedM057pan.jpg
  • Scanning Electron Micrograph (SEM) of a cross section of marijuana (Cannabis sativa) seed, showing the root and seed leaves enclosed. The field of view of this image is 4 mm in the horizontal direction.
    K170613cola-seedL055panB.jpg
  • Scanning Electron Micrograph (SEM) of a cross section of marijuana (Cannabis sativa) seed, showing the root and seed leaves enclosed. The field of view of this image is 4 mm in the horizontal direction.
    K170613cola-seedL055pan.jpg
  • A cannabis seedling showing the first set of true leaves. Imaged with a scanning electron microscope (SEM). False color has been applied. The marijuana plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The filed of view in this image is 4 mm wide.
    K170516C022layers.jpg
  • Scanning Electron Micrograph (SEM) of a sample if ice water hash or hashish. Shown in the image is a pile of glandular trichomes that have been concentrated in a unique process. Leaves with very high concentrations of stalked glandular trichomes are cooled in ice water then agitated. The agitation breaks off the trichomes, which in turn sink, to the bottom of the water.  Once separated from the water and dried, the ice water hash has some of the highest concentrations of THC of any physical separation process.  Since the stalked glandular trichomes are the location of the highest concentration of THC this technique in recent years has become very popular. The marijuana (Cannabis sativa) plant contains tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells in this sample are 60 um in diameter.
    K170403hashish01.jpg
  • Trichomes on a Rosemary leaf, chemically stained to show detail. Magnification was 40X on the 35mm sensor.
    K14-rosemarry30.jpg
  • Section of a Rosemary leaf, chemically stained to show detail. Magnification was 40X on the 35mm sensor.
    K14-rosemarry28.jpg
  • An X-ray of a Chestnut tree flower and leaf.
    hchestnut10.jpg
  • An X-Ray of a Cannabis Plant (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18Xcannabisleafs01-05B.jpg
  • An X-Ray of a Cannabis Plant (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18XcannabisberryB.jpg
  • An X-Ray of a Cannabis Plant (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18Xcannabis013B.jpg
  • An X-Ray of a Cannabis Plant (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18Xcannabis006B.jpg
  • An X-Ray of a Cannabis Plant (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18Xcannabis006A.jpg
  • An X-Ray of a Cannabis Plant (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18Xcannabis002D.jpg
  • An X-Ray of a Cannabis Plant (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18Xcannabis002.jpg
  • Cannabis plant. Colored scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant bud.  Glandular cells called trichomes are also present. These are capitate trichomes that have stalks. These trichomes secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.  Magnification is 180x when printed 10 cm wide.
    K13SEM-pot-A01color-CSC.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    K170614leafC016pan03.jpg
  • Crystals in the roots of the Cannabis plant. The exact composition of these are currently unknown and their role in the life cycle of the plant is a mystery. Why are they there? What do they do? What is the chemical composition of the crystals? Just a few of the questions that seem to be a daily occurrence when looking at the cannabis plant with this level of magnification.<br />
Magnification on the printed page is 4300x at 9 inches wide.
    K170614Root-crystalscombo.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The head o fthe trichome is 60 um in diameter.
    K170607stemE038A-pan.jpg
  • A scanning electron microscope image of the stem of a cannabis (Cannabis sativa) plant. There are a number of different types of cell structures called trichomes in this image. The thorn-like trichomes use a physical defense while the circular glandular trichomes use chemical defense. Combined, these defenses keep insects and animals from eating the plant. Each circular glandular trichome is 50 um in diameter in this image.
    K170607stemA005pan.jpg
  • A scanning electron microscope image of the football shaped bract of the female  cannabis (Cannabis sativa) flower. The oval bract structure houses the stigma and is responsible for producing seeds when the flower has been pollinated. This bract structure is also the location of the highest concentration of cannabinoid compounds on the plant.  This site is also the location of the highest concentration of THC. There are a number of different types of cell structures called trichomes in this image. The thorn-like trichomes use a physical defense while the circular glandular trichomes use chemical defense. Combined, these defenses keep insects and animals from eating the plant. Each circular glandular trichome is 50 um in diameter in this image.
    K170517bud-k070panA1C.jpg
  • A scanning electron microscope image of the football shaped bract of the female  cannabis (Cannabis sativa) flower. The oval bract structure houses the stigma and is responsible for producing seeds when the flower has been pollinated. This bract structure is also the location of the highest concentration of cannabinoid compounds on the plant.  This site is also the location of the highest concentration of THC. There are a number of different types of cell structures called trichomes in this image. The thorn-like trichomes use a physical defense while the circular glandular trichomes use chemical defense. Combined, these defenses keep insects and animals from eating the plant. Each circular glandular trichome is 50 um in diameter in this image.
    K170517bud-k070panA1A.jpg
  • False color Scanning Electron Micrograph (SEM) of the underside of a new marijuana leaf (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The filed of view in this image is 4 mm wide.
    K170509cryotest-zhp-alcuE0.jpg
  • A scanning electron microscope image of the stem of a young cannabis (Cannabis sativa) plant. The thorn-like trichomes use a physical defense to keep insects and animals from eating the plant. The stem is 1.5 mm diameter in this image.
    K170429-5day064C.jpg
  • Crystals in the roots of the Cannabis plant. The exact composition of these are currently unknown and their role in the life cycle of the plant is a mystery. Why are they there? What do they do? What is the chemical composition of the crystals? Just a few of the questions that seem to be a daily occurrence when looking at the cannabis plant with this level of magnification.<br />
Magnification on the printed page is 4300x at 9 inches wide.
    170614Root-crystalscombo.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170614leafH046pan.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170614leafH046pan2.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. Magnification: 52X when printed 10 cm wide.
    170613gland-triF031pan3.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170613cola-bladeH043pan2.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170613cola-bladeH043pan1.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170613cola-bladeA002pan2.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170609BractK035pan.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170609bractC013pan2.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170609bractB008PANtk.jpg
  • X-ray of Eucalyptus cinerea 'Pendula' branch.
    K15X-eucalyptus003B.jpg
  • X-ray of Anthurium Flower. Anthurium bouquet (Anthurium andraeanum)
    K15X-Anthuriumbouquet03E.jpg
  • X-ray of Anthurium Flower. Anthurium bouquet (Anthurium andraeanum)
    K15X-Anthuriumbouquet03A.jpg
  • Bacteria on the surface of a hop leaf.  This bacteria is unidentified. This image was collected at 12,230 and represents a field of view of 10um in the horizontal direction. The vine (Humuluslupulus) grows throughout Europe and the Americas.  Hops is extensively cultivated for the production of beer. Preparations of its flowers are used in herbal medicine to aid digestion and to relieve fever.
    K15Sem-hopsleaf022B.jpg
  • Cannabis plant. Colored scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant.  Glandular cells called trichomes are also present. These are capitate trichomes that have stalks. These trichomes secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.  Magnification is 100x when printed 10 cm wide.
    K14SEM-canna-44.jpg
  • Cannabis plant. Colored scanning electron micrograph (SEM) of the bottom surface of a cannabis (Cannabis sativa) plant.  Magnification is 90x when printed 10 cm wide.
    K14SEM-canna-29B.jpg
  • Cannabis plant. Colored scanning electron micrograph (SEM) of the bottom surface of a cannabis (Cannabis sativa) plant.  Magnification is 90x when printed 10 cm wide.
    K14SEM-canna-29.jpg
  • A false color SEM image of a Calcium oxalate crystal.  Even a small dose of calcium oxalate is enough to cause intense sensations of burning in the mouth and throat.  Commonly found in popular houseplants, such as Dumbcane, the crystals effects or symptoms may last for a week or more, making calcium oxalate crystals a non-desirable ingredient in medicinal cannabis.  It is surprising that calcium oxalate is rarely discussed in literature about medical marijuana (cannabis).  There crystals are fairly common in plants, as they make it hard for grazing animals to eat the plant. Image is 70 um wide.
    K13SEM-pot-oxalate02.jpg
  • A false color SEM image of a Calcium oxalate crystal.  Even a small dose of calcium oxalate is enough to cause intense sensations of burning in the mouth and throat.  Commonly found in popular houseplants, such as Dumbcane, the crystals effects or symptoms may last for a week or more, making calcium oxalate crystals a non-desirable ingredient in medicinal cannabis.  It is surprising that calcium oxalate is rarely discussed in literature about medical marijuana (cannabis).  There crystals are fairly common in plants, as they make it hard for grazing animals to eat the plant. Image is 20 um wide.
    K13SEM-pot-oxalate01A.jpg
  • Cannabis plant. Colored scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant.  Glandular cells called trichomes are also present. These are capitate trichomes that have stalks. These trichomes secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.  Magnification is 180x when printed 10 cm wide.
    K13SEM-pot-multiBSE-001.jpg
  • An electrophotography discharge image of a ginko leaf (Ginkgo biloba ).  Also called Kirlian Photography, this technique shows the electrical discharge around an object. The principle of electrography is based on the corona discharge phenomenon that takes place when an electrically grounded object generates an electrical field, discharging sparks between itself and an electrode.
    K08ginko-a.jpg
  • Scanning Electron Microscope (sem) image of Tobacco (Nicotiana tabacum).   The calibration bar is 20 um and the magnification is 2,420 x.
    K08SEMtobacco023-A.jpg
  • A scanning electron microscope image of the leaf of the lavender plant (Lavandula augustifolia ).  The branching cells give added protection from insects.  The pillow shaped structure produces the aromatic sent that gives lavender it characteristic smell.
    K07semLAV4layors.jpg
  • A Male Cannabis Plant (Cannabis sativa) in bloom. The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18XcannabisMale17001A.jpg
  • An X-Ray of a Cannabis Plant (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18Xcannabisleafs01-05D.jpg
  • An X-Ray of a Cannabis Plant (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18XcannabisbudCU002A.jpg
  • An X-Ray of a Cannabis Plant (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18XcannabisberryA.jpg
  • An X-Ray of a Cannabis Plant (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18Xcannabis002C.jpg
  • An X-Ray of a Cannabis Plant (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18Xcannabis-planttopC.jpg
  • A scanning electron microscope image of the football shaped bract of the female  cannabis (Cannabis sativa) flower. The oval bract structure houses the stigma and is responsible for producing seeds when the flower has been pollinated. This bract structure is also the location of the highest concentration of cannabinoid compounds on the plant.  This site is also the location of the highest concentration of THC. There are a number of different types of cell structures called trichomes in this image. The thorn-like trichomes use a physical defense while the circular glandular trichomes use chemical defense. Combined, these defenses keep insects and animals from eating the plant. Each circular glandular trichome is 50 um in diameter in this image. The filed of view of this image is 3 mm wide.
    K170609bractF028panA.jpg
  • The pollen from a male cannabis plant is nestled into the female stigma and is in the process of transferring genetic material to the female to create a seed.  The pollen is 20 um in diameter. A single grain of pollen is too small to see with the human eye. The pollen is scattered by air current to pollenate the female plant.
    K170525-D027panA.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant, showing glandular cells, called trichomes. These trichomes are on teh surface of the leaf. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The circular cell structure a tthe center of the frame is 40 um in diameter.
    K170524CPD-triCN101mix.jpg
  • A scanning electron microscope image of the football shaped bract of the female  cannabis (Cannabis sativa) flower. The oval bract structure houses the stigma and is responsible for producing seeds when the flower has been pollinated. This bract structure is also the location of the highest concentration of cannabinoid compounds on the plant.  This site is also the location of the highest concentration of THC. There are a number of different types of cell structures called trichomes in this image. The thorn-like trichomes use a physical defense while the circular glandular trichomes use chemical defense. Combined, these defenses keep insects and animals from eating the plant. Each circular glandular trichome is 50 um in diameter in this image.
    K170517bud-H062panC.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. Thise is a low glandular trichomes that is close to the surface of the leaf. It secretes a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 20 um in diameter.
    K170510stem058thric.jpg
  • A scanning electron microscope image of the stem of a young cannabis (Cannabis sativa) plant. The thorn-like trichomes use a physical defense to keep insects and animals from eating the plant. The stem is 1.5 mm diameter in this image.
    K170429-5day064B.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. Magnification: 52X when printed 10 cm wide.
    170613cola-bladeC015pan1.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170609BractN053PANtk2.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170609BractM046pan2.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170609BractD011pantk.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170609bractC013pan1.jpg
  • Color-enhanced Scanning Electron Micrograph (SEM) of the surface of a marijuana (Cannabis sativa) plant leaf, showing glandular cells, called trichomes. These are capitate trichomes that have stalks. They secrete a resin containing tetrahydrocannabinol (THC), the active component of cannabis when used as a drug. The spherical cells at the top of the trichomes are 60 um in diameter.
    170609BractA002pantk2.jpg
  • X-ray Hops plant. Hop flowers on the vine (Humuluslupulus). This plant grows throughout Europe and the Americas.  Hops is extensively cultivated for the production of beer. Preparations of its flowers are used in herbal medicine to aid digestion and to relieve fever.
    K15X-hops-comp01C.jpg
  • X-ray Hops plant. Hop flowers on the vine (Humuluslupulus). This plant grows throughout Europe and the Americas.  Hops is extensively cultivated for the production of beer. Preparations of its flowers are used in herbal medicine to aid digestion and to relieve fever.
    K15X-hops-comp01.jpg
  • X-ray of Eucalyptus cinerea 'Pendula' branch.
    K15X-eucalyptus003C.jpg
  • X-ray of Anthurium Flower. Anthurium bouquet (Anthurium andraeanum)
    K15X-Anthuriumbouquet03D.jpg
  • SEM image of the surface of a hop leaf.  The thorn structure is designed to detour predators from eating the leaf.  It is these modified trichome structures that make the plant difficult to handle. this image was collected at 1,240x and represents a field of view of .1mm in the horizontal direction.
    K15SEM-hopsleaf017B.jpg
  • SEM image of the surface of a hop leaf.  The thorn structure is designed to detour predators from eating the leaf.  It is these modified trichome structures that make the plant difficult to handle. this image was collected at 585x and represents a field of view of .2mm in the horizontal direction.
    K15SEM-hopsleaf011B.jpg
  • SEM image of the  surface of a hop flower.  The thorn structures are designed to detour predators from eating the flower.  It is these modified trichome structures that make the plant difficult to handle. this image was collected at 169x and represents a field of view of .8mm in the horizontal direction.<br />
The round sacks on the flower are filled with the chemicals that give hops its characteristic smell.
    K15SEM-hops-flower027.jpg
  • Cannabis plant. Colored scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant.  Magnification is 180x when printed 10 cm wide.
    K14SEM-canna-19.jpg
  • Cannabis plant. Colored scanning electron micrograph (SEM) of the surface of a cannabis (Cannabis sativa) plant.  Magnification is 180x when printed 10 cm wide.
    K13SEM-pot-multiBSE-001canna-14.jpg
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Ted Kinsman

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