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  • The male flower of the cannabis plant (Cannabis sativa) plant photographed in a scanning electron microscope. Magnification when printed 10 inches wide is x50.
    170524CPD-stemL086_2.jpg
  • The male flower of the cannabis plant (Cannabis sativa) plant photographed in a scanning electron microscope. Magnification when printed 10 inches wide is x50.
    170524CPD-stemL086_1.jpg
  • The male flower of the cannabis plant (Cannabis sativa) plant photographed in a scanning electron microscope. Magnification when printed 10 inches wide is x50.
    170524CPD-stemK075pan2.jpg
  • The male flower of the cannabis plant (Cannabis sativa) plant photographed in a scanning electron microscope. Magnification when printed 10 inches wide is x50.
    170524CPD-stemK075pan1.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
  • The male flower of the cannabis plant (Cannabis sativa) imaged with a scanning electron microscope (SEM). This image shows a field of view of 6 mm in the horizontal direction.
    K170515SEMAA011Pan1.jpg
  • The male flower of the cannabis plant (Cannabis sativa)
    K17maleflowermacro-optical-6.jpg
  • The male flower of the cannabis plant (Cannabis sativa)
    K17maleflowermaleMG_7593-Edit.jpg
  • The male flower of the cannabis plant (Cannabis sativa)
    K17maleflowermaleflower1-5x.jpg
  • The male flower of the cannabis plant (Cannabis sativa)
    K17maleflowermacro-optical-7.jpg
  • The male flower of the cannabis plant (Cannabis sativa)
    K17maleflowermacro-optical-9.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-comp01B.jpg
  • Jack-in-the-pulpit X-ray (Arisaema triphyllum) is a common perennial found in swamps and rich, moist woods of eastern North America. The American Indians used this plant medicinally for a large variety of ailments.
    K11-xjackpulp3.jpg
  • Jack-in-the-pulpit X-ray (Arisaema triphyllum) is a common perennial found in swamps and rich, moist woods of eastern North America. The American Indians used this plant medicinally for a large variety of ailments.
    K11-xjackpulp1.jpg
  • The male flower of the cannabis plant (Cannabis sativa) imaged by a scanning electron microscope. The field of view is 3 mm wide.
    K170515cryoZ-Maleflowerpan01.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
  • 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-hopsleaf011.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-hopsleaf017.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
  • 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. This vine (Humuluslupulus). 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-hopsleaf022.jpg
  • Bacteria on the surface of a hop leaf.  This bacteria is unidentified. This image was collected at 58,000x and represents a field of view of 1.2um 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-hopsleaf020.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.
    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.
    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
  • 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.
    K18Xcannabiso8BottomA.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.
    K18Xcannabisleafs01-05A.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.
    K18Xcannabis013A.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.
    K18Xcannabis006C.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
  • 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-planttopB.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.
    K18XcannabisbudCU002B.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.
    K18Xcannabis013C.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.
    K18Xcannabis008A.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.
    K18Xcannabis002B.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-planttopA.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.
    K18XcannabisbudCU002C.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.
    K18Xcannabis008C.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.
    K18Xcannabisleafs01-05C.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.
    K18Xcannabis008B.jpg
  • An X-Ray of a Cannabis Leaf (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18XcannabisLeaf01DB.jpg
  • An X-Ray of a Cannabis Leaf (Cannabis sativa). The plant produces tetrahydrocannabinol (THC), the active component of cannabis when used as a drug.
    K18XcannabisLeaf01DA.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
  • 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
  • Sweet Flag Stem (Acorus calamus)  Light micrograph of a section through a fig tree stem. The large holes are cross-sections of xylem, vascular tissue used to transport water and minerals from the roots.  The rootstock of this aromatic plant are used as a natural insecticide and an ingredient of perfumes. The roots  were used for various medicinal purposes, and reportedly induce hallucinations if eaten in sufficiently large quantities. In modern times the active chemical in the plant have been identified as Beta-asarone,  a carcinogen.  The Food & Drug Administration (FDA) has banned the use of the sweet flag as a food additive. The magnification is 200 times when printed 10 inches wide.
    K07sweet-flag200x-11.tif
  • Sweet Flag Stem (Acorus calamus)  Light micrograph of a section through a fig tree stem. The large holes are cross-sections of xylem, vascular tissue used to transport water and minerals from the roots.  The rootstock of this aromatic plant are used as a natural insecticide and an ingredient of perfumes. The roots  were used for various medicinal purposes, and reportedly induce hallucinations if eaten in sufficiently large quantities. In modern times the active chemical in the plant have been identified as Beta-asarone,  a carcinogen.  The Food & Drug Administration (FDA) has banned the use of the sweet flag as a food additive. The magnification is 200 times when printed 10 inches wide.
    K07sweet-flag200x-10.tif
  • Sweet Flag Stem (Acorus calamus)  Light micrograph of a section through a fig tree stem. The large holes are cross-sections of xylem, vascular tissue used to transport water and minerals from the roots.  The rootstock of this aromatic plant are used as a natural insecticide and an ingredient of perfumes. The roots  were used for various medicinal purposes, and reportedly induce hallucinations if eaten in sufficiently large quantities. In modern times the active chemical in the plant have been identified as Beta-asarone,  a carcinogen.  The Food & Drug Administration (FDA) has banned the use of the sweet flag as a food additive. The magnification is 200 times when printed 10 inches wide.
    K07sweet-flag200x-1.tif
  • Sweet Flag Stem (Acorus calamus)  Light micrograph of a section through a fig tree stem. The large holes are cross-sections of xylem, vascular tissue used to transport water and minerals from the roots.  The rootstock of this aromatic plant are used as a natural insecticide and an ingredient of perfumes. The roots  were used for various medicinal purposes, and reportedly induce hallucinations if eaten in sufficiently large quantities. In modern times the active chemical in the plant have been identified as Beta-asarone,  a carcinogen.  The Food & Drug Administration (FDA) has banned the use of the sweet flag as a food additive. The magnification is 25 times when printed 10 inches wide.
    K07sweet-flag.tif
  • Sweet Flag Stem (Acorus calamus)  Light micrograph of a section through a fig tree stem. The large holes are cross-sections of xylem, vascular tissue used to transport water and minerals from the roots.  The rootstock of this aromatic plant are used as a natural insecticide and an ingredient of perfumes. The roots  were used for various medicinal purposes, and reportedly induce hallucinations if eaten in sufficiently large quantities. In modern times the active chemical in the plant have been identified as Beta-asarone,  a carcinogen.  The Food & Drug Administration (FDA) has banned the use of the sweet flag as a food additive. The magnification is 200 times when printed 10 inches wide.
    K07sweet-flag200x-4.tif
  • Butchers Broom (box holly) Ruscus aculeatus. Butcher's broom is an aromatic, diuretic, mildly laxative herb that reduces inflammation and constricts the veins.  The plant is considered a medicinal herb since medieval times.  Magnifation is 32 times when printed 10 inches wide.
    K07butchers-broom.tif
  • Butchers Broom (box holly) Ruscus aculeatus. Butcher's broom is an aromatic, diuretic, mildly laxative herb that reduces inflammation and constricts the veins.  The plant is considered a medicinal herb since medieval times.  Magnifation is 200 times when printed 10 inches wide.
    K07butchers-broom200x1.tif
  • Butchers Broom (box holly) Ruscus aculeatus. Butcher's broom is an aromatic, diuretic, mildly laxative herb that reduces inflammation and constricts the veins.  The plant is considered a medicinal herb since medieval times.  The magnification is 200 times when printed 10 inches wide.
    K07butchers-broom200x2.tif
  • 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-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-2.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
  • 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
  • Sacred lotus flower. This lotus (Nelumbo nucifera) is a member of the water lily family, but is unusual in producing leaves which are held above the water. The flower lasts for only one day, and the seeds may germinate after remaining dormant for many years. The plant is regarded as sacred in India and China because Buddha is supposed to have been born in the heart of a lotus.
    plotus2_00008.jpg
  • X-ray of Opium poppy (Papaver somniferum) flower. This poppy is the source of opium, a narcotic resin that contains the alkaloids morphine and codeine. These are used by the pharmaceutical industry as painkillers (analgesics). Opium can be refined to yield the illegal drug heroin.
    K15X-poppy16black.jpg
  • X-ray of Opium poppy (Papaver somniferum) flower. This poppy is the source of opium, a narcotic resin that contains the alkaloids morphine and codeine. These are used by the pharmaceutical industry as painkillers (analgesics). Opium can be refined to yield the illegal drug heroin.
    K15X-poppy16A.jpg
  • X-ray of Eucalyptus cinerea 'Pendula' branch.
    K15X-eucalyptus003B.jpg
  • X-ray of Eucalyptus cinerea 'Pendula' branch.
    K15X-eucalyptus003Cyan.jpg
  • X-ray of Eucalyptus cinerea 'Pendula' branch.
    K15X-eucalyptus003C.jpg
  • X-ray of Eucalyptus cinerea 'Pendula' branch.
    K15X-eucalyptus003A.jpg
  • X-ray Black Raspberries. Black Raspberry (Rubus sp.) fruits
    K15X-BlackRaspberries01B.jpg
  • Scanning electron micrograph (SEM) of mature female Cannabis bud (Cannabis sativa) showing globular trichomes – the location of the highest concentration THC.  magnification x120 when printed 10 cm wide.
    K14-SEM-pot22A.jpg
  • X-ray Black Raspberries. Black Raspberry (Rubus sp.) fruits
    K15X-BlackRaspberries01C.jpg
  • X-ray Black Raspberries. Black Raspberry (Rubus sp.) fruits
    K15X-BlackRaspberries01.jpg
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