"Part of the sympathetic nervous system seen from in front, n, one of the two chief cords, t, i, and p, branches to organs." —Davison, 1910

Sympathetic nervous system

"Part of the sympathetic nervous system seen from in front, n, one of the two chief cords, t, i, and…

"Branch of Procris splendens; 2. cluster of male and female flowers; 3. a male flower about to expand; 4. the same expanded." -Lindley, 1853

Nettlewort

"Branch of Procris splendens; 2. cluster of male and female flowers; 3. a male flower about to expand;…

Also known as Abies nobilis. Native to the Cascade Range and Coast Range mountains.

Pine Cone of Noble Fir

Also known as Abies nobilis. Native to the Cascade Range and Coast Range mountains.

Also known as Quercus ellipsoidalis. The branch of a Northern Pin Oak tree, native to the northern midwest United States.

Branch of Northern Pin Oak

Also known as Quercus ellipsoidalis. The branch of a Northern Pin Oak tree, native to the northern midwest…

Also known as Quercus rubra. The branch of a Northern Red Oak tree, native to northeastern United States.

Branch of Northern Red Oak

Also known as Quercus rubra. The branch of a Northern Red Oak tree, native to northeastern United States.

Also known as Hicoria myristicaeformis. The branch of a Nutmeg Hickory plant, an oil-rich food for wildlife.

Branch of Nutmeg Hickory

Also known as Hicoria myristicaeformis. The branch of a Nutmeg Hickory plant, an oil-rich food for wildlife.

Also known as Quercus texana. A species of oak tree native to the southern United States.

Branch of Nuttall's Oak

Also known as Quercus texana. A species of oak tree native to the southern United States.

An illustration of an oak branch.

Oak Branch

An illustration of an oak branch.

Eastern Black oak (Quercus velutina), or more commonly known as simply Black Oak is an oak in the red oak (Quercus sect. Lobatae) group of oaks. It is native to eastern North America from southern Ontario south to northern Florida and southern Maine west to northeastern Texas. It is a common tree in the Indiana Dunes and other sandy dunal ecosystems along the southern shores of Lake Michigan. It is most often found in dry well draining upland soils which can be clayey or sandy in nature in most of the rest of its range. In the northern part of its range, black oak is a relatively small tree, reaching a height of 20-25 m (65-80 ft) and a diameter of 90 cm (35 in), but it grows larger in the south and center of its range, where heights of up to 42 m (140 ft) are known. Black Oak is well known to readily hybridize with other members of the red oak (Quercus sect. Lobatae) group of oaks being one parent in at least a dozen different named hybrids. he inner bark of the black oak contains a yellow pigment called quercitron, which was sold commercially in Europe until the 1940s.

Eastern Black Oak Branch

Eastern Black oak (Quercus velutina), or more commonly known as simply Black Oak is an oak in the red…

A branch of an Ocotea catesbyana tree. They are commonly found throughout tropical climates, including Central and South America, and Madagascar.

Branch of Ocotea Catesbyana

A branch of an Ocotea catesbyana tree. They are commonly found throughout tropical climates, including…

"Flowering Branch of Oleaster (Elaeagnus angustifolia). a, fruit; b, section of same." -Whitney, 1911

Oleaster

"Flowering Branch of Oleaster (Elaeagnus angustifolia). a, fruit; b, section of same." -Whitney, 1911

The Olive (Olea europaea) is a species of small tree in the family Oleaceae, native to the coastal areas of the eastern Mediterranean region, from Lebanon, Syria and the maritime parts of Asia Minor and northern Iran at the south end of the Caspian Sea. Its fruit, the olive, is of major agricultural importance in the Mediterranean region as the source of olive oil. The Olive tree is an evergreen tree or shrub native to the Mediterranean, Asia and parts of Africa. It is short and squat, and rarely exceeds 8–15 meters in height. The silvery green leaves are oblong in shape, measuring 4–10 cm long and 1–3 cm wide. The trunk is typically gnarled and twisted.The small white flowers, with four-cleft calyx and corolla, two stamens and bifid stigma, are borne generally on the last year's wood, in racemes springing from the axils of the leaves. The fruit is a small drupe 1–2.5 cm long, thinner-fleshed and smaller in wild plants than in orchard cultivars. Olives are harvested at the green stage or left to ripen to a rich purple colour (black olive). Canned black olives may contain chemicals that turn them black artificially.

Olive Branch

The Olive (Olea europaea) is a species of small tree in the family Oleaceae, native to the coastal areas…

Also known as Juniperus monosperma. A species of Juniper native to western North America.

Branch of One-Seed Juniper

Also known as Juniperus monosperma. A species of Juniper native to western North America.

Also known as Populus balsamifera. The branch of an Ontario Balsam Poplar tree, native to northern United States.

Branch of Ontario Balsam Poplar

Also known as Populus balsamifera. The branch of an Ontario Balsam Poplar tree, native to northern United…

An oriole attacking a serpent on a branch.

Oriole and serpent

An oriole attacking a serpent on a branch.

A pair of golden orioles with their nest and eggs.

Golden Oriole

A pair of golden orioles with their nest and eggs.

The branch of an Ostrya knowltoni.

Branch of Ostrya Knowltoni

The branch of an Ostrya knowltoni.

Also known as Quercus lyrata. The branch of an Overcup Oak tree, native to the wetlands of the United States.

Branch of Overcup Oak

Also known as Quercus lyrata. The branch of an Overcup Oak tree, native to the wetlands of the United…

The Canada owl, also known as the day or hawk owl. It feeds primarily on small birds.

Canada Owl

The Canada owl, also known as the day or hawk owl. It feeds primarily on small birds.

Eagle or great-horned owl, found in Europe and northern asia. It feeds on hares, rabbits, moles, mice, rats, partridges, and reptiles.

Eagle Owl

Eagle or great-horned owl, found in Europe and northern asia. It feeds on hares, rabbits, moles, mice,…

Genus <em>ascalaphia</em>, a large owl, native to southern Europe and northern parts of Egypt.

Great Short-Eared Owl

Genus ascalaphia, a large owl, native to southern Europe and northern parts of Egypt.

Also known as Salix lucida. The branch of a Pacific Willow tree, native to wetland habitats in northern and western North America.

Branch of Pacific Willow

Also known as Salix lucida. The branch of a Pacific Willow tree, native to wetland habitats in northern…

Also known as Taxus brevifolia. A conifer native to the Pacific Northwest of North America.

Branch of Pacific Yew

Also known as Taxus brevifolia. A conifer native to the Pacific Northwest of North America.

Also known as Betula papyrifera. The branch of a Paper Birch tree, native to northern North America.

Branch of Paper Birch

Also known as Betula papyrifera. The branch of a Paper Birch tree, native to northern North America.

Usually living around small mountain streams, large spiders have been known to attack and eat the vrested pardalotte, which averages only three inches in length.

Crested Pardalotte

Usually living around small mountain streams, large spiders have been known to attack and eat the vrested…

Also known as Quercus engelmannii. The branch of a Pasadena Oak tree, native to California.

Branch of Pasadena Oak

Also known as Quercus engelmannii. The branch of a Pasadena Oak tree, native to California.

The branch of a Pasania densiflora, a species of beech tree.

Branch of Pasania Densiflora

The branch of a Pasania densiflora, a species of beech tree.

An assortment of passeres, one order of birds. The legs, feet, and talons are generally smaller than those of predatory birds.

Passeres

An assortment of passeres, one order of birds. The legs, feet, and talons are generally smaller than…

An illustration of a peach on the branch.

Peach

An illustration of a peach on the branch.

Also known as Salix amygdaloides. The branch of a Peachleaf Willow tree, native to southern Canada and northern United States.

Branch of Peachleaf Willow

Also known as Salix amygdaloides. The branch of a Peachleaf Willow tree, native to southern Canada and…

"1. branch of Pyrus communis; 2. its flower divided vertically; 3. a cross section of its fruit." -Lindley, 1853

European Pear

"1. branch of Pyrus communis; 2. its flower divided vertically; 3. a cross section of its fruit." -Lindley,…

Also known as Hicoria pecan. The branch of a standard pecan tree.

Branch of Pecan Tree

Also known as Hicoria pecan. The branch of a standard pecan tree.

"Some plants, like pelargoniums, can only be kept handsomely formed and well furnished by cutting them down severely every season, after the blooming is over. The plants should be prepared for this by keeping them rather dry at the root, and after cutting they must stand with little or no water till the stems heal over, and produce yound shoots, or "break," as it is technically termed." &mdash; Encyclopedia Britannica, 1893

Pelargoniums

"Some plants, like pelargoniums, can only be kept handsomely formed and well furnished by cutting them…

Pereski grandiflora is a synonym of pereski grandifolia. The common name of pereski is barbados gooseberry. Grandiflora has solitary, white flowers. The stem is very spiny, the larger spines being two inches long.

Branch of Pereski Grandiflora

Pereski grandiflora is a synonym of pereski grandifolia. The common name of pereski is barbados gooseberry.…

The branch of a Persea borbonia tree.

Branch of Persea Borbonia

The branch of a Persea borbonia tree.

The leaves of philodendron verucosum are heart shaped and a delicate, satiny green. The leaves are shaded with a metallic olive color on the upper surface.

Branch and Detached Leaf of Philodendron Verucosum

The leaves of philodendron verucosum are heart shaped and a delicate, satiny green. The leaves are shaded…

Phyllanthus angustifolius flowers are red and bloom in July. The stem is two feet high.

Branch of Phyllanthus Angustifolius

Phyllanthus angustifolius flowers are red and bloom in July. The stem is two feet high.

Phyllocactus ackermanni flowers are rich crimson with shining petals. The flowers are six to eight inches in diameter.

Branch of Phyllocactus Ackermanni

Phyllocactus ackermanni flowers are rich crimson with shining petals. The flowers are six to eight inches…

Also known as Hicoria glabra. The branch of a Pignut Hickory tree, native to the eastern United States.

Branch of Pignut Hickory

Also known as Hicoria glabra. The branch of a Pignut Hickory tree, native to the eastern United States.

An illustration of a Pilocarpus branch.

Pilocarpus Branch

An illustration of a Pilocarpus branch.

"Cone of Pinus muricata, showing the difference between the outer and inner sides of the same strobilius when the inner side is pressed against a branch. 1. A pair of leaves; 2. the end of the leaf magnified; 3, a seed, natural size." -Lindley, 1853

Bishop Pine

"Cone of Pinus muricata, showing the difference between the outer and inner sides of the same strobilius…

"With an ubrupt termination"-Whitney, 1902

Pinnate Leaf

"With an ubrupt termination"-Whitney, 1902

The leaves of pinus contorta are bright green and small, from one to two inches long. The branches are numerous and spreading.

Branch of Pinus Contorta

The leaves of pinus contorta are bright green and small, from one to two inches long. The branches are…

The common name of pinus excelsa is Bhotan pine. The branches are regularly whorled. The tree grows between sixty and one hundred fifty feet tall.

Branch of Pinus Excelsa

The common name of pinus excelsa is Bhotan pine. The branches are regularly whorled. The tree grows…

Pictured is a branch of pinus longifolia with male catkins. The branches are irregularly and thinly scattered. The bark is rough.

Branch of Pinus Longifolia

Pictured is a branch of pinus longifolia with male catkins. The branches are irregularly and thinly…

The common name of pinus pinaster is cluster pine. The leaves are dark green, stiff, broad, and stout. The leaves are between six and twelve inches long. The cones are yellowish brown and about four inches long.

Branch of Pinus Pinaster

The common name of pinus pinaster is cluster pine. The leaves are dark green, stiff, broad, and stout.…

The branch of a Pisonia longifolia tree.

Branch of Pisonia Longifolia

The branch of a Pisonia longifolia tree.

An image of a fruiting plum branch.

Fruiting Branch of Plum

An image of a fruiting plum branch.

Also known as Annona glabra. A branch of a Pond-Apple tree, native to the southeast United States and the Caribbean.

Branch of Pond-Apple

Also known as Annona glabra. A branch of a Pond-Apple tree, native to the southeast United States and…

"The larvae of [Saperda populena] live in gall-like swellings in the branches [of poplar]."&mdash;Nicholson, 1884

Saperda Populena

"The larvae of [Saperda populena] live in gall-like swellings in the branches [of poplar]."—Nicholson,…

The branch of a Populus acuminata, a species of poplar.

Branch of Populus Acuminata

The branch of a Populus acuminata, a species of poplar.

The branch of a Populus wislizeni, a species of cottonwood tree.

Branch of Populus Wislizeni

The branch of a Populus wislizeni, a species of cottonwood tree.

Also known as Malus ioensis. A branch of a Prairie Crabapple tree native to the regions of the upper Mississippi Valley.

Branch of Prairie Crabapple

Also known as Malus ioensis. A branch of a Prairie Crabapple tree native to the regions of the upper…

Found in New Guinea, the grand promerops is renowned for its beautiful plumage.

Grand Promerops

Found in New Guinea, the grand promerops is renowned for its beautiful plumage.

"The nature of the cut itself in pruning is of more consequence, especially in the case of fruit trees, than at first signt may appear. The branches should be separated by a clean cut at an angle of abouot 45 degrees, just at the back of a bud, the cut entering on a level with the base of the bud and passing out on a level with its top, for when cut in this way the wound becomes rapidly covered with new wood, as soon as growth recommences, whereas if the cut is too close the bud is starved, or if less close an ugly and awkward snag is left." &mdash; Encyclopedia Britannica, 1893

Pruning

"The nature of the cut itself in pruning is of more consequence, especially in the case of fruit trees,…

"The nature of the cut itself in pruning is of more consequence, especially in the case of fruit trees, than at first signt may appear. The branches should be separated by a clean cut at an angle of abouot 45 degrees, just at the back of a bud, the cut entering on a level with the base of the bud and passing out on a level with its top, for when cut in this way the wound becomes rapidly covered with new wood, as soon as growth recommences, whereas if the cut is too close the bud is starved, or if less close an ugly and awkward snag is left." &mdash; Encyclopedia Britannica, 1893

Pruning

"The nature of the cut itself in pruning is of more consequence, especially in the case of fruit trees,…

"The nature of the cut itself in pruning is of more consequence, especially in the case of fruit trees, than at first signt may appear. The branches should be separated by a clean cut at an angle of abouot 45 degrees, just at the back of a bud, the cut entering on a level with the base of the bud and passing out on a level with its top, for when cut in this way the wound becomes rapidly covered with new wood, as soon as growth recommences, whereas if the cut is too close the bud is starved, or if less close an ugly and awkward snag is left." &mdash; Encyclopedia Britannica, 1893

Pruning

"The nature of the cut itself in pruning is of more consequence, especially in the case of fruit trees,…

"The nature of the cut itself in pruning is of more consequence, especially in the case of fruit trees, than at first signt may appear. The branches should be separated by a clean cut at an angle of abouot 45 degrees, just at the back of a bud, the cut entering on a level with the base of the bud and passing out on a level with its top, for when cut in this way the wound becomes rapidly covered with new wood, as soon as growth recommences, whereas if the cut is too close the bud is starved, or if less close an ugly and awkward snag is left." &mdash; Encyclopedia Britannica, 1893

Pruning

"The nature of the cut itself in pruning is of more consequence, especially in the case of fruit trees,…

"The nature of the cut itself in pruning is of more consequence, especially in the case of fruit trees, than at first signt may appear. The branches should be separated by a clean cut at an angle of abouot 45 degrees, just at the back of a bud, the cut entering on a level with the base of the bud and passing out on a level with its top, for when cut in this way the wound becomes rapidly covered with new wood, as soon as growth recommences, whereas if the cut is too close the bud is starved, or if less close an ugly and awkward snag is left." &mdash; Encyclopedia Britannica, 1893

Pruning

"The nature of the cut itself in pruning is of more consequence, especially in the case of fruit trees,…

"The nature of the cut itself in pruning is of more consequence, especially in the case of fruit trees, than at first signt may appear. The branches should be separated by a clean cut at an angle of abouot 45 degrees, just at the back of a bud, the cut entering on a level with the base of the bud and passing out on a level with its top, for when cut in this way the wound becomes rapidly covered with new wood, as soon as growth recommences, whereas if the cut is too close the bud is starved, or if less close an ugly and awkward snag is left." &mdash; Encyclopedia Britannica, 1893

Pruning

"The nature of the cut itself in pruning is of more consequence, especially in the case of fruit trees,…