Xylem Collection (page 6)

Section through stem of Oak tree
Light micrograph of a transverse section of the stem of an oak tree Quercus robur. The micrograph shows the xylem, the part of the vascular bundle which is responsible for the transportation of water

Woody stem section, SEM
Woody stem section. Coloured scanning electron micrograph (SEM) of a section through a stem of a woody plant. At upper centre is the pith (orange), which consists of soft, spongy parenchyma cells

Bracken rhizome, light micrograph
Bracken rhizome. Light micrograph of part of a cross-section through a rhizome from the bracken Pteridium aquilinum. The centre of the rhizome is off top, while the outer surface is off bottom

Mistletoe vascular bundle, LM
Mistletoe vascular bundle. Light micrograph (LM) of a section of mistletoe (Viscum album) stem in cross-section, showing a vascular bundle

Primary wood, light micrograph
Primary wood of a tree. Light micrograph of a vertical section of the primary wood or xylem of a tree showing wood vessels with lignified annular, spiral and scalariform supporting thickenings

Tree xylem vessels, light micrograph
Tree xylem vessels. Polarised light micrograph of a vertical section through the primary wood vessels (xylem vessels) of a tree

Stem of old mans beard. Light micrograph through the cross section of the stem of old man beard (Clematis vitalba, family Ranunculaceae)

Liana stem. Light micrograph of a vascular bundle in a transverse section through a Brazilian liana stem showing the xylem and phloem

Buttercup stem, light micrograph
Buttercup stem. Coloured light micrograph of a section through a buttercup stem (Ranunculus sp.) showing the circular-shaped vascular bundle (right)

Root section, SEM
Root section. Coloured scanning electron micrograph (SEM) of a section through a root of a woody dicotyledon plant. This root consists of secondary xylem tissue (yellow, centre)

Art of vascular system in a root
Illustration of the vascular system in a plant root. Cross-sections through different layers of this root show elements of its internal anatomy

Cucumber stem, light micrograph
Cucumber stem. Light micrograph of a cross-section through part of a vascular bundle from a cucumber (Cucurbita sp.). This vascular bundle is from the stem of the cucumber

Mistletoe stem, LM
Mistletoe stem. Light micrograph (LM) of a mistletoe (Viscum album) stem in cross-section, showing nine vascular bundles radiating out from the centre of the stem

Tobacco, SEM
Tobacco. Coloured scanning electron micrograph (SEM) of tobacco from a cigarette. At centre bottom is some spiral xylem tissue

Conifer needle, SEM
Conifer needle. Coloured scanning electron micrograph (SEM) of a section through a needle (leaf) from a conifer tree, showing the vascular bundle (large round cluster)

Leaf midrib, light micrograph
Leaf midrib. Light micrograph (LM) of a section through the midrib of a leaf from a monocotyledon plant. The midrib (midvein) is the continuation of a leafs stem along the centre of the leaf

Nasturtium leaf, SEM
Nasturtium leaf. Coloured scanning electron micrograph (SEM) of the underside of a nasturtium leaf (Tropaeolum sp.). Numerous hairs (trichomes) cover the surface

Section through a pine needle, LM
Section through a pine needle. Light micrograph (LM) of a section through the needle (leaf) of a pine tree, Pinus sp.. The centre of the needle is occupied by two vascular bundles

Leaf midrib, SEM
Leaf midrib. Coloured scanning electron micrograph (SEM) of a section through the midrib of a leaf from the Common Box (Buxus sempervirens)

Pondweed stem, light micrograph
Pondweed stem. Light micrograph of a transverse section through the stem of a pondweed (Potamogeton sp.) plant. All aquatic plants (hydrophytes) have a similar stem structure

Water milfoil stem, light micrograph
Water milfoil stem. Light micrograph of a transverse section through the stem of the aquatic whorled water milfoil (Myriophyllum verticillatum) plant

Waterweed stem, light micrograph
Waterweed stem. Polarised light micrograph of a transverse section through a stem of the aquatic western waterweed (Elodea nuttallii) plant

Mares tail stem, light micrograph
Mares tail stem. Polarised light micrograph of a transverse section through a stem of the aquatic mares tail (Hippuris vulgaris) plant. All aquatic plants (hydrophytes) have a similar stem structure

Grape root, light micrograph
Grape root. Light micrograph of a transverse section through a grape vine (Vitis sp.) root. At centre are xylem (red) and tracheid (green) cells, which transport water around the plant

Sweet potato stem, light micrograph
Sweet potato stem. Light micrograph of a transverse section through part of a sweet potato (Ipomoea batatas) stem. At bottom is a large area of pith, consisting of parenchyma cells

Sweet potato root, light micrograph
Sweet potato root. Light micrograph of a transverse section through the centre of a sweet potato (Ipomoea batatas) root. Xylem cells, which transport water around the plant, are red

Clematis stem, light micrograph
Clematis stem. Light micrograph of a transverse section through the stem of a clematis (Clematis flammula) plant. At the centre of the stem is a large area of pith, consisting of parenchyma cells

Liana stem, light micrograph
Liana stem. Light micrograph of a transverse section through the stem of a liana (Aristolochia tormentosa), or woody vine. At the centre of the stem is the pith, consisting of parenchyma cells

Rosemary leaf structure, SEM
Rosemary leaf. Coloured scanning electron micrograph (SEM) of a freeze-fracture through a leaf from a rosemary plant (Rosmarinus officinalis). The fracture has revealed vascular tissue (green)

Sago cycad leaf, SEM
Sago cycad leaf. Coloured scanning electron micrograph (SEM) of a section through a sago cycad (Cycas revoluta) leaf. At lower centre and left are vascular bundles (orange clusters)

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Xylem, the intricate network of plant tissues responsible for water transport and structural support, is a fascinating subject to explore under various microscopes. From scanning electron microscopy (SEM) images capturing the detailed vascular bundles to light micrographs showcasing different plant parts, xylem reveals its beauty and functionality. In a castor oil stem captured by a light micrograph, we witness the complexity tissue as it forms an interconnected system of vessels that efficiently transports water from roots to leaves. Similarly, in a maize root image taken with a light microscope, we can observe the organized arrangement cells that enable efficient uptake of water and nutrients. Moving on to leaf structures, a captivating light micrograph showcases the delicate veins within a water lily leaf. These intricate networks are composed mainly tissue which ensures proper hydration throughout the leaf's surface area. Another stunning SEM image captures silver birch twig's xylem vessels in detail - their elongated shapes perfectly adapted for fluid transportation. Exploring further into plants' underground systems, we encounter an enchanting light micrograph displaying the rhizome structure of a water fern. Xylem tissues play an essential role here too by providing support and facilitating nutrient absorption from surrounding soil particles. Light micrographs also capture xylem wonders in stems like those found in pine trees or pondweeds. Pine tree stems exhibit dense clusters of tracheids – specialized cells within xylem – while pondweed stems showcase long strands forming hollow tubes for efficient water movement. Even at smaller scales observed through SEM imaging techniques, such as examining isolated samples of pure xylem tissue or wood itself under high magnification power; one can appreciate its intricate cellular arrangements that allow for optimal fluid flow and mechanical stability. Lastly, exploring below ground once again brings us to oak roots depicted through another mesmerizing light micrograph.