Phloem Collection (#2)

Dracaena draco stem, light micrograph
Dracaena draco stem. Light micrograph of a section through the stem of a young dragon tree (Dracaena draco). Shown here is an outer ring of vascular bundles, containing phloem (blue) and xylem (red)

Wheat leaf, light micrograph
Wheat leaf. Light micrograph of a section through a leaf from a common wheat (Triticum aestivum) plant. The vascular bundle (centre to upper centre), or vein

Common rush stem, light micrograph
Common rush stem. Light micrograph of a section through the stem of a common rush (Juncus conglomeratus) plant, showing stellate cells

Dendrobium orchid root, light micrograph
Dendrobium orchid root. Light micrograph of a section through an aerial root from a Dendrobium sp. orchid. The outer tissue (velamen radicum, grey) is composed of hexagonal cells

Sharp rush stem, light micrograph
Sharp rush stem. Light micrograph of a section through the stem of a sharp rush (Juncus acutus) plant. This arid-adapted plant (xerophyte) has scattered vascular bundles

Ammophila arenaria leaf, light micrograph
Ammophila arenaria leaf. Polarised light micrograph of a section through a marram grass (Ammophila arenaria) leaf, showing the characteristics that help reduce water loss

Beech tree leaf, light micrograph
Beech tree leaf. Light micrograph of a section through the leaf of a common beech tree (Fagus sylvatica), showing the midrib

Marrow stem, light micrograph
Marrow stem. Light micrograph of a section through the stem of a marrow (Curcurbita sp.), showing the sieve plates in the phloem. A single collateral vascular bundle can be seen

Sycamore leaf vein, light micrograph
Sycamore leaf vein. Light micrograph of a section through the midrib (vein) of a leaf from a sycamore (Acer pseudoplatanus) tree

Geranium stem, light micrograph
Geranium stem. Light micrograph of a section through a young stem of a geranium (Pelargonium sp.) plant. The outer stem is covered with a thin epidermis (red) which has stomata

Sweet pea stem, light micrograph
Sweet pea stem. Light micrograph of a section through the hollow stem of a sweet pea (Lathyrus odoratus) plant, showing a ring of vascular bundles

Sage stem, light micrograph
Sage stem. Light micrograph of a section through a primary stem of a scarlet sage (Salivia splendens) plant. The outer stem is covered with a thin epidermis (green) that contains stomata

Rhubarb root, light micrograph
Rhubarb root. Light micrograph of a section through the root of a rhubarb (Rheum sp.) plant. The primary cortex has been shed by the formation of a circular meristem, the periderm

Oak root, light micrograph
Oak root. Light micrograph of a section through a secondary root from an oak (Quercus sp.) tree. The primary cortex (outer layer) has been shed by the formation of a circular meristem, the periderm

White bryony stem, light micrograph
White bryony stem. Light micrograph of a transverse section through the stem of a white bryony (Bryonia alba) plant, showing a single collateral vascular bundle

Beech tree leaves, light micrograph
Beech tree leaves. Light micrograph of a section through two leaves from different parts of a common beech tree (Fagus sylvatica)

Horse-tail stem, light micrograph
Rice grass stem. Light micrograph of a section through a rice grass stem (Oryza sativa). Vascular bundles (small oval structures) can be seen containing xylem (larger openings)

Plant root development, artwork
Plant root development. Artwork showing the first three stages in the development of a plant root. The first of these three stages (upper left)

Plant root development, diagram
Plant root development. Diagram showing the the fourth (left) and fifth (right) stages in a series showing the development of a plant root

Grape vine stem, light micrograph
Grape vine stem. Polarised light micrograph of a cross-section through a young stem from the grape vine (Vitis vinifera). Most of the stem is a large central pith made up of parenchyma tissue (blue)

Tree growth rings, light micrograph
Tree growth rings. Polarised light micrograph of a cross-section through a woody stem, showing a portion of an annual ring of xylem tissue with periods of seasonal growth

Virginia creeper stem, light micrograph
Virginia creeper stem. Polarised light micrograph of a cross-section through a stem from a Virginia creeper (Parthenocissus tricuspidatus)

Celery stalk, light micrograph
Celery stalk. Light micrograph of a cross-section through a stalk from a celery plant (Apium graveolens). Red eosin dye has been used to stain the xylem tissues

Tree-of-heaven stem, light micrograph
Tree-of-heaven stem. Polarised light micrograph of a cross-section through the stem of the tree-of-heaven (Ailanthus glandulosa). Below the outer layers (red) is a ring of vascular bundles

Aralia leaf stalk, light micrograph
Aralia leaf stalk. Light micrograph of a cross-section through a leaf stalk (petiole) from an Araliatree. The outer layer directly below the epidermis is a supporting collenchyma ring (red)

Bracken fern rhizome, light micrograph
Bracken fern rhizome. Polarised light micrograph of a cross-section through a rhizome from a bracken fern (Pteris aquilinum). The outer layer (yellow-green) consists of supporting fibres

Corn (Zea mays) root, light micrograph
Maize root. Polarised light micrograph of a section through the root of a maize plant (Zea mays) showing a vascular cylinder

Fern rhizome, light micrograph. Transverse section through the center of a rhizome from the Killarney fern (Trichomanes speciosum)

Clubmoss stem, light micrograph
Clubmoss stem, polarised light micrograph. Transverse section through the stem of the clubmoss Lycopodium clavatum. This is the central portion of the stem consisting of the inner cortex (red)

Butchers broom stem, light micrograph
Butchers broom stem. Polarised light micrograph of a section through a butchers broom stem (Ruscus aculeatis) showing many vascular bundles (dark clusters) within the plant cortex (orange)

Umbrella grass stem, light micrograph
Umbrella grass stem. Polarised light micrograph of a section through a umbrella grass stem (Cyperus alternifolius). Vascular bundles (brown) can be seen containing xylem (larger openings)

Flax plant stem, light micrograph
Flax plant stem. Light micrograph of a transverse section through a stem of the flax plant (Linum usitatissimum). The layers from outer to inner (some very thin) are the epidermis (bottom)

Purple moor grass stem, light micrograph
Purple moor grass stem. Polarised light micrograph of a section through a purple moor grass stem (Molinia caerula). Vascular bundles (round orange structures)

Bamboo stem, light micrograph
Bamboo stem. Polarised light micrograph of a section through a bamboo stem (Bambusa vulgaris). Vascular bundles can be seen (yellow/green) containing xylem (larger openings)

Maize stem, light micrograph
Maize stem. Polarised light micrograph of a section through a maize plant stem (Zea mays). A vascular bundles (brown) can be seen containing xylem (larger openings)

Spiny rush stem, light micrograph
Spiny rush stem. Polarised light micrograph of a section through a spiny rush stem (Juncus actus). Vascular bundles can be seen (purple/red) containing xylem (larger openings)

Wheat stem, light micrograph
Wheat stem. Light micrograph of a section through the stem of a wheat grass (Triticum aestivium). The circular structures (orange and green) are vascular bundles

Sugar cane stem, light micrograph
Sugar cane stem. Polarised light micrograph of a section through a sugar cane stem (Saccharum officinareum). Vascular bundles (round blue/purple structures)

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Phloem, the intricate network of vascular bundles responsible for transporting nutrients and sugars throughout plants, is a fascinating subject to explore. Through scanning electron microscopy (SEM) and light micrographs, we can delve into the hidden world in various plant species. In a lime tree stem, a light micrograph reveals the delicate structure cells intertwined within the vascular bundle. These specialized cells form sieve tubes that efficiently transport organic compounds from leaves to other parts of the plant. Similarly, in a maize root captured under a light microscope, we witness the intricate web-like arrangement tissue. This vital system ensures essential nutrients are distributed from roots to shoots for growth and development. The water lily leaf showcases another mesmerizing view through a light micrograph. Here, we observe elongated phloem fibers running parallel to each other like veins on this aquatic beauty's surface. Switching gears to SEM imaging, we encounter an enchanting sight on a silver birch twig. The high-resolution image captures xylem vessels alongside phloem cells with astonishing detail—each playing its crucial role in maintaining fluid balance and nutrient transport within this majestic tree. A closer look at water fern rhizome under a light microscope uncovers an interconnected network tissues supporting its underground growth. These structures ensure efficient distribution of resources necessary for survival in challenging environments. Examining pine tree stems through light microscopy allows us to appreciate how intricately woven strands contribute to their robustness and longevity—a testament to nature's engineering marvels. Delving into tomato leaf anatomy via light micrographs reveals densely packed clusters of sieve tube elements forming part of its extensive phloem network—an integral component enabling fruit production and overall plant health. Pondweed stems provide yet another captivating glimpse into the world beneath our feet when observed using advanced microscopic techniques. Phloem fibers intertwine with xylem vessels, showcasing the plant's ability to adapt and thrive in aquatic environments.