Quercus Robur Collection (page 4)

Oak acorns and autumn leaf C017 / 7172
Oak acorns and autumn leaf. Acorns, the nut of the oak tree (Quercus robur), contain the seed that forms a new tree. Like all deciduous trees, the leaves change colour in autumn as the green pigment

Oak (Quercus robur) trees on a moor
Common oak (Quercus robur) trees on a moor. Photographed in Whyddon Deer Park, Teign Valley, Dartmoor, UK, in January

English oak (Quercus robur) C016 / 6091
English oak (Quercus robur). Decorative panels depicting flora that form the ceiling of the Central Hall at the Natural History Museum, London, UK

Moss-covered woodland. View across moss-covered rocks and common oak (Quercus robur) trees in Wistmans Wood, Dartmoor, UK. Photographed in January

Oak (Quercus robur) leaf C014 / 0729
Oak (Quercus robur) leaf

Ancient woodland C016 / 7780
Lawrenny Wood is a large tract of deciduous woodland overlooking the Milford Haven waterway, comprised mainly of ancient Oak trees whose branches display a characteristic twisted form. UK

Oak (Quercus robur) tree at dawn C014 / 3029
Oak (Quercus robur) tree on a frosty plain at dawn

Oak (Quercus robur) tree in fog C014 / 3028
Oak (Quercus robur) tree in fog

Oak woodland. Common oak (Quercus robur) trees on a misty morning. Photographed in Yearnor Wood, Exmoor, Somerset, UK, in March

Ancient coppice woodland, Wayland Wood UK C016 / 5294
A view of coppice-with-standards woodland, Wayland Wood, Norfolk UK. Coppice woodland is an ancient method of tree management

English Oak (Quercus robur) C016 / 4265
Ripening acorns of English Oak (Quercus robur) in October

English Oak (Quercus robur) C016 / 4263
Foliage and ripening acorns of English Oak (Quercus robur) in October

English Oak (Quercus robur) C016 / 4264
Ripening acorns of English Oak (Quercus robur) in summer

Oak (Quercus robur) C013 / 6982
Oak (Quercus robur) buds in January. Photographed in Dorset, United Kingdom

Oak (Quercus robur) C013 / 6981
Oak (Quercus robur) buds in January. Photographed in Dorset, United Kingdom

Oak (Quercus robur) C013 / 6959
Oak (Quercus robur) leaves and acorns in autumn. Photographed in Dorset, United Kingdom

Oak pancake spangle gall, SEM
Oak pancake spangle gall. Coloured scanning electron micrograph (SEM) of a gall on a leaf from an oak tree (Quercus robur)

Spangle galls on an oak leaf, SEM
Spangle galls on an oak leaf. Coloured scanning electron micrograph (SEM) of spangle galls on the underside of a leaf from the English oak (Quercus robur) tree

Oak xylem. Coloured scanning electron micrograph (SEM) of a section through the xylem wood vessels of an oak tree (Quercus robur)

Section through Oak wood
Light micrograph of a transverse section through the wood (secondary xylem) of an oak tree, Quercus robur, showing annual growth rings (horizontal bands) & prominent rays (pale, vertical stripes)

Quercus robur, oak tree
Illustration from the Botany Library Plate Collection held at the Natural History Museum, London

Quercus rober niger, oak tree
Illustration from the Botany Library Plate Collection held at the Natural History Museum, London

Quercus robur, English oak
A photograph of six of decorative ceiling panels from the roof of the Natural History Museums Central Hall showing Quercus robur, English oak

Purple Hairstreak (Quercusia quercus) caterpillar, on Common Oak (Quercus robur) shoot in ancient woodland, Alun Valley, Vale of Glamorgan, South Wales, May

View of Common Oak (Quercus robur), barn and cattle on coastal grazing marsh habitat, silhouetted at sunrise, Elmley Marshes National Nature Reserve, Isle of Sheppey, Kent, England, July

Ancient Oak Tree - and winter star trails - Sababurg Ancient Forest Reserve - North Hessen - Germany
USH-5256 Ancient Oak Tree - and winter star trails Sababurg Ancient Forest Reserve - North Hessen - Germany Quercus robur Duncan Usher contact details: prints@ardea.com tel: +44 (0) 20 8318 1401

Moss covered boulders and stunted Common Oak (Quercus sp. ) trees in moorland high altitude copse habitat
Moss covered boulders and stunted Common Oak (Quercus sp.) trees in moorland high altitude copse habitat, Wistmans Wood, Dartmoor N.P. Devon, England, january

Ancient stunted Common Oak (Quercus sp. ) trees growing amongst moss covered boulders in moorland copse habitat
Ancient stunted Common Oak (Quercus sp.) trees growing amongst moss covered boulders in moorland copse habitat, Black-a-Tor Copse National Nature Reserve, West Okement River Valley, Dartmoor N.P

Ancient coppiced woodland habitat with Common Oak (Quercus robur) standards, Bonny Wood Reserve, Barking Tye, Suffolk, England, april

Snow on branches
Snow on the branches of a Pedunculare Oak (Quercus robur). Photographed at dawn in the New Forest National Park, Hampshire, England

Snow on branches of a pedunculate oak (Quercus robur)

Wistmans Wood, Dartmoor
Light rain falling in Wistmans Wood, Dartmoor. This wood is one of three surviving remnants of ancient woodland in Dartmoor

English oak buds
English oak (Quercus robur) buds breaking open in spring. Photographed in April, in Dorset, UK

Acorns fallen from an oak tree (Quercus robur) in autumn. Photographed in October, in Dorset, UK

Knopper gall on acorn. Close-up of two acorns from an Pedunculate Oak (Quercus robur) tree. The lower one has been infected by the parasitic larva of a gall wasp (Andricus quercuscalicis)

Oak Marble galls caused by the Andricus kollari gall wasp on a Pedunculare Oak (Quercus robur). They are green at first, turning brown and woody when mature

Knopper galls on acorns of an English oak (Quercus robur). These swellings are galls filled with the larvae of the gall wasp Andricus quercuscalicis. Photographed in August

Common oak tree branches (Quercus robur) in winter

False-colour SEM of oak heartwood
False-colour scanning electron micrograph of a horizontal section through oak heartwood, the wood (secondary xylem) of the tree Quercus robur

Leonardo da Vincis oak leaves and acorns
Oak leaves and acorns. Historical artwork of the leaves and fruit (acorns) of the oak tree (Quercus robur). Also seen at left are the leaves and pods of the Dyers woad plant (Isatis tinctoria)

Oak sapling (Quercus robur). Photographed in the UK

Acorn. The acorn is the fruit of the English oak tree (Quercus robur). Photographed in autumn

Pollen grains from common Oak flower
False colour scanning electron micrograph (SEM) of pollen grains from the common oak flower Quercus robur. Oak trees flower in May/June producing copious quantities of pollen

Oak acorn. The acorn is the fruit of the English oak tree (Quercus robur). This acorn contains the trees fertilised seeds. Photographed in the UK

Sprouting acorn of the English oak tree (Quercus robur). A young root (radicle) is seen burrowing downwards, while the shoot is seen growing upwards towards the light

English oak acorns (Quercus robur). Photographed in Dorset, UK, in August

Oak burr on the trunk of an oak tree (Quercus robur). Burr (or burl) is deformed wood caused by cambium. Cambium is layers of tissue that are the source of cells for secondary growth

Pedunculate Oak (quercus robur) Acorn
Pedunculate Oak (quercus robur), Acorns in their cups in early September, Dorset. Note that a distinctive feature of the English or Pedunculate Oak is that the cups are held together on a long common

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"Quercus Robur: A Majestic Symbol of Strength and Beauty" The English oak (Quercus robur) acorns, scattered across the forest floor, mark the beginning of a new cycle in Oak woodland on Dartmoor. These tiny seeds hold within them the potential for towering giants that will grace our landscapes for centuries to come. In Gloucestershire, an English oak tree proudly displays its early spring growth, painting the field with vibrant shades of green. Ewes and lambs seek solace under its protective shade in Chipping Campden, Cotswolds, Gloucestershire - a testament to the nurturing qualities this magnificent species provides. As April arrives in Surrey, UK, common oak flowers shed their pollen into the air. The dance of nature unfolds as these delicate particles carry life from one blossom to another. Meanwhile, in Kellerwald, Hesse Germany during November's embrace; an enchanting woodland adorned with autumn colors showcases Quercus robur's ability to captivate even during its transition towards winter slumber. Illustrations beautifully depict leaves and acorns belonging not only to Pedunculate oak Quercus robur but also Sessile oak Quercus sessilis, Turkey oak Quercus cerris, and Northern red oak Quercus rubra- showcasing diversity within this remarkable genus. Underneath a scanning electron microscope (SEM), we discover intricate details of English oak leaf pores - nature's ingenious design allowing respiration and transpiration processes vital for survival. From sunrise till nightfall; from Brecon Beacons National Park to Dartmoor; an Oak tree stands tall against both day and night skies. Its silhouette tells tales of resilience while stars twinkle above like celestial witnesses to its enduring presence. Quercus robur embodies strength rooted deep within our history and culture. It symbolizes longevity and stability while providing shelter for countless creatures along with inspiration for poets, artists, and nature enthusiasts alike.