Vascular Bundle Collection

Vascular bundle, SEM
Vascular bundle. Coloured scanning electron micrograph (SEM) of a section through a vascular bundle from a rootlet of a dicotyledon plant

Castor oil stem, light micrograph
Castor oil stem. Light micrograph of a longitudinal section through the stem of a castor oil (Ricinus communis) plant. At right are large and small parenchyma cells (blue)

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

Water lily leaf, light micrograph
Water lily leaf. Light micrograph of a transverse section through the leaf of a water lily (Nympha sp.) plant. All aquatic plants (hydrophytes) have a similar structure

Water fern rhizome, light micrograph
Water fern rhizome. Polarised light micrograph of a section through a rhizome from a water fern (Marselia vestita). Under the epidermis (the outer layer)

Tomato leaf, light micrograph
Tomato leaf. Light micrograph of a transverse section through the midrib of a tomato (Lycopersicum esculentum) leaf. The upper and lower epidermis on the surfaces of the leaf are blue

Fern Leaves Touching One Another
A fern is a member of a group of about 10, 560 known extant species of vascular plants that reproduce via spores and have neither seeds nor flowers. They differ from mosses by being vascular (i.e)

Iris root, light micrograph
Iris root. Light micrograph of a section through the root of an Iris plant (Iris germanica) showing a vascular cylinder. The cylinder is comprised of a central cluster of parenchyma cells (red)

Plant vascular bundle, illustration C018 / 0915
Plant vascular bundle. Illustration showing the structure of vascular bundle from a monocotyledon root. At centre (top) is the pith

Dicotyledon vascular bundle, SEM C016 / 9603
Dicotyledon vascular bundle. Coloured scanning electron micrograph (SEM) of a section through a vascular bundle from a dicotyledonous plant

Dicotyledon vascular bundle, SEM C016 / 9602
Dicotyledon vascular bundle. Coloured scanning electron micrograph (SEM) of a section through a vascular bundle from a dicotyledonous plant

Spiderwort leaf, SEM C016 / 9410
Spiderwort leaf. Coloured scanning electron micrograph (SEM) of a section though a leaf from a Virginia spiderwort (Tradescantia virginiana) plant, showing the epidermal layer (uppermost)

St Johns wort leaf, light micrograph
St Johns wort leaf. Light micrograph of a section through a St Johns wort (Hypericum sp.) leaf. The leafs midrib is at left, with the vascular bundle at its centre

Groundsel stem, light micrograph
Groundsel stem. Light micrograph of a section through a groundsel stem (Senecio vulgaris), showing xylem vessels (brown, upper centre)

Fern leaf, light micrograph
Fern leaf. Light micrograph of a transverse section through the midrib of a fern leaf. A vascular bundle is at centre. Magnification: x40 when printed at 10 centimetres wide

Nasturtium stem, SEM
Nasturtium stem. Coloured scanning electron micrograph (SEM) of a freeze-fractured Nasturtium (Tropaeolum sp.) stem, showing numerous vascular bundles (such as at upper centre)

Olive leaf, light micrograph
Olive leaf. Light micrograph of a section through the mid rib of an olive leaf (Olea sativa). It has a thickened epidermis for water retention

Lily stem, light micrograph
Lily stem. Light micrograph of a section through a lily stem. A thin outer epidermis (dark blue) surrounds a layer of cortex. At the centre is the pith, which contains numerous vascular bundles

Sago palm leaf, light micrograph
Sago palm leaf. Light micrograph of a transverse section through a sago palm (Cycas revoluta) leaf. It has a thick epidermis (outer red layer) typical of drought resistant plants

Iris stem, light micrograph. A thin outer epidermis (far left) surrounds a thick layer of cortex. In the centre of the stem is the pith, which contains numerous vascular bundles (red)

Water lily stem, SEM
Water lily stem. Coloured scanning electron micrograph (SEM) of a freeze-fractured water lily stem showing numerous vascular bundles (grey) and large intercellular air spaces (holes)

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

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

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

Burdock stem, light micrograph
Burdock stem. Polarised light micrograph of a cross-section through the stem of a burdock plant (Arctium lappa). The outer layers below the epidermis are the collenchyma (red patches)

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

Soft rush stem, light micrograph
Soft rush stem. Fluorescent light micrograph of a cross section through pith from a soft rush (Juncus effusus) stem. The star-shaped aerenchyma tissue (upper frame)

Horsetail stem, light micrograph. Transverse section through the stem of the common horsetail (Equisetum arvensis). The stem consists of an outer epidermis and an outer cortex of sclerenchyma cells

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)

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)

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A vascular bundle, the intricate network of transport tissues in plants, is a fascinating subject to explore under the microscope. From the detailed SEM images of various plant parts like castor oil stem and maize root to the captivating light micrographs of water lily leaf and tomato leaf, these glimpses into nature's engineering marvels never cease to amaze. The water fern rhizome showcases its complex system for nutrient uptake while the pondweed stem reveals its efficient method for conducting water. In a mesmerizing display, fern leaves touch one another, highlighting their interconnectedness through vascular bundles. Delving deeper into this topic, an illustration depicts a typical plant vascular bundle with precision (C018 / 0915). Additionally, SEM images provide insight into dicotyledon vascular bundles (C016 / 9603 & C016 / 9602), showcasing their unique structures. As we examine these microscopic wonders like an iris root or dissected plant parts under bright lights (light micrograph), we gain a deeper appreciation for how plants efficiently distribute vital resources throughout their bodies using these remarkable vascular bundles.