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A South American fan palm.

Cornahuba Palm

A South American fan palm.

A tree that produces the resin copal that is used in various varnishes.

Copal

A tree that produces the resin copal that is used in various varnishes.

A West Indian tree that is used for its lustrous red wood

Logwood

A West Indian tree that is used for its lustrous red wood

A South American palm that produce a seed for the which the plant is named.

Vegetable Ivory

A South American palm that produce a seed for the which the plant is named.

A plant or tree whose bark is harvested for the treatment of Malaria.

Cinchona

A plant or tree whose bark is harvested for the treatment of Malaria.

Palms are one of the most well-known and extensively cultivated plant families. They have had an important role to humans throughout much of history. Many common products and foods are derived from palms, and palms are also widely used in landscaping for their exotic appearance, making them one of the most economically important plants. In many historical cultures, palms were symbols for such ideas as victory, peace, and fertility. Today, palms remain a popular symbol for the tropics and vacations.

Palm Tree

Palms are one of the most well-known and extensively cultivated plant families. They have had an important…

East Indian tree that puts out aerial shoots that grow down into the soil forming additional trunks.

Banyan Tree

East Indian tree that puts out aerial shoots that grow down into the soil forming additional trunks.

Pines are native to most of the Northern Hemisphere. In North America, they range from Arctic south to Nicaragua and Hispaniola, with the highest diversity in Mexico and California. In Eurasia, they range from Portugal and Scotland east to the Russian Far East, Japan, and the Philippines, and south to northernmost Africa, the Himalaya and Southeast Asia, with one species (Sumatran Pine) just crossing the Equator in Sumatra. Pines are also extensively planted in many parts of the Southern Hemisphere.

Pine Tree

Pines are native to most of the Northern Hemisphere. In North America, they range from Arctic south…

A group of trees or shrubs native to North America and Europe.

Ar'butus

A group of trees or shrubs native to North America and Europe.

Bread-Fruit is the pulpy fruit of a tree which grows only in the tropics. The tree yields fruit during most of the year, and is said to be a native of the South Sea Islands, though it is now quite common in the Friendly and Society groups, and in many of the neighboring islands.

Bread Fruit

Bread-Fruit is the pulpy fruit of a tree which grows only in the tropics. The tree yields fruit during…

Coffee is the berry of a tree found native in Abyssinia. The tree attains a height of 15 to 20 feet, but when cultivated, it is generally kept lower by cutting. The tree has shining green leaves, and bears beautiful white flowers, which are followed by reddish-brown berries, each of which contains two grains of coffee. The coffee-tree is cultivated extensively in Arabia, Java, the Philippines, Ceylon, Brazil, and in the West Indies.

Coffee

Coffee is the berry of a tree found native in Abyssinia. The tree attains a height of 15 to 20 feet,…

A scene where loggers are cutting down a pine tree forest in the United States.

Loggers

A scene where loggers are cutting down a pine tree forest in the United States.

The females deposit their eggs, which are small, oval, and black, on twigs and bark in the autumn; the insect is hatched out the next spring, and feeds upon the sap of the tree. The first broods are all females, which in a short time, without any intercourse with the males, give birth to living young by the process of gemmation. These also produce other young ones, which are all females as long as the summer lasts, and it is only in the autumn that males are produced, which, uniting with the females, become the parents of the eggs for the following spring brood, thus bearing living young all the summer, and laying eggs which can withstand the frosts of the winter in autumn for the following spring season, while the parent insects in winter are destroyed by the wet and cold weather and alternate freezing and thawing.

Apple Plant Louse

The females deposit their eggs, which are small, oval, and black, on twigs and bark in the autumn; the…

The females deposit their eggs, which are small, oval, and black, on twigs and bark in the autumn; the insect is hatched out the next spring, and feeds upon the sap of the tree. The first broods are all females, which in a short time, without any intercourse with the males, give birth to living young by the process of gemmation. These also produce other young ones, which are all females as long as the summer lasts, and it is only in the autumn that males are produced, which, uniting with the females, become the parents of the eggs for the following spring brood, thus bearing living young all the summer, and laying eggs which can withstand the frosts of the winter in autumn for the following spring season, while the parent insects in winter are destroyed by the wet and cold weather and alternate freezing and thawing.

Apple Plant Louse

The females deposit their eggs, which are small, oval, and black, on twigs and bark in the autumn; the…

The female tree-cricket

Tree Cricket

The female tree-cricket

The male tree-cricket

Tree Cricket

The male tree-cricket

Blackberry cane showing egg punctures.

Tree Cricket

Blackberry cane showing egg punctures.

Blackberry cane showing egg punctures, split to show the arrangement of the eggs.

Tree Cricket

Blackberry cane showing egg punctures, split to show the arrangement of the eggs.

An egg

Tree Cricket

An egg

The tip of the eggs.

Tree Cricket

The tip of the eggs.

Buffalo tree-hopper, Ceresa bubalus- tarsus.

Treehopper

Buffalo tree-hopper, Ceresa bubalus- tarsus.

Buffalo tree-hopper, Ceresa bubalus- antenna.

Treehopper

Buffalo tree-hopper, Ceresa bubalus- antenna.

Buffalo tree-hopper, Ceresa bubalus- wing.

Treehopper

Buffalo tree-hopper, Ceresa bubalus- wing.

Buffalo tree-hopper, Ceresa bubalus- mouth

Treehopper

Buffalo tree-hopper, Ceresa bubalus- mouth

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen

Treehopper

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, showing ovipositor.

Treehopper

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, showing ovipositor.

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, mouth

Treehopper

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, mouth

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, tip of abdomen

Treehopper

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, tip of abdomen

Work of the sinuate pear-borer on a Bartlett pear-tree.

Pear-Tree

Work of the sinuate pear-borer on a Bartlett pear-tree.

White-pine weevil of the Pissodes strobi species.

Weevil

White-pine weevil of the Pissodes strobi species.

White-pine weevil of the Pissodes strobi species; pupa.

Weevil

White-pine weevil of the Pissodes strobi species; pupa.

White-pine weevil of the Pissodes strobi species; larva.

Weevil

White-pine weevil of the Pissodes strobi species; larva.

The lime-tree moth, Hybernia tiliaria species; larva of all sizes.

Moth

The lime-tree moth, Hybernia tiliaria species; larva of all sizes.

The lime-tree moth, Hybernia tiliaria species; winged male.

Moth

The lime-tree moth, Hybernia tiliaria species; winged male.

The lime-tree moth, Hybernia tiliaria species; wingless female.

Moth

The lime-tree moth, Hybernia tiliaria species; wingless female.

A winter scene with sheep.

Winter

A winter scene with sheep.

A running brook.

Brook

A running brook.

A squirrel hiding in a tree from the rain.

Squirrel

A squirrel hiding in a tree from the rain.

A Redwood tree in California.

Redwood

A Redwood tree in California.

Men cutting down trees.

Tree-Cutters

Men cutting down trees.

A ceylon palm tree.

Ceylon Palm

A ceylon palm tree.

Breadfruit is a tree and fruit native to the East Indian Ocean and Western Pacific Ocean Islands.

Breadfruit

Breadfruit is a tree and fruit native to the East Indian Ocean and Western Pacific Ocean Islands.

The coffee plant is a shrub or small tree, native to subtropical Africa and southern Asia.

Coffee

The coffee plant is a shrub or small tree, native to subtropical Africa and southern Asia.

The Strychnine tree, an evergreen tree native to southeaast Asia.

Nux-vomica

The Strychnine tree, an evergreen tree native to southeaast Asia.

A tropical tree native to southeast Asia and northern Australasia, from Taiwan south to Malaya and east to the Solomon Islands.

Gutta Percha

A tropical tree native to southeast Asia and northern Australasia, from Taiwan south to Malaya and east…

Also known as Pandanus and is native to the Old World tropics and western Pacific Ocean islands.

Screw Pine

Also known as Pandanus and is native to the Old World tropics and western Pacific Ocean islands.

The Kamila tree, also known as Spoonwood, native to eastern United States.

Kamila

The Kamila tree, also known as Spoonwood, native to eastern United States.

The Tallow tree is from the East Indies.

Tallow

The Tallow tree is from the East Indies.

The Queensland Bottle Tree originally classified in the family Sterculiaceae, native to Queensland, Australia.

Bottle Tree

The Queensland Bottle Tree originally classified in the family Sterculiaceae, native to Queensland,…

Cloves are the aromatic dried flower buds of a tree in the family Myrtaceae.

Clove

Cloves are the aromatic dried flower buds of a tree in the family Myrtaceae.

Eucalyptus is dominate in Australia but also found in adjacent parts of New Guinea and Indonesia. Many are known as gum trees.

Eucalyptus

Eucalyptus is dominate in Australia but also found in adjacent parts of New Guinea and Indonesia. Many…

Nutmeg is the seed of the tree.

Nutmeg

Nutmeg is the seed of the tree.

Cinnamon is a small evergreen tree, native to Sri Lanka and Southern India.

Cinnamon

Cinnamon is a small evergreen tree, native to Sri Lanka and Southern India.

A coniferous tree native to the northern districts of the North Island of New Zealand and is the bigest but not tallest species of tree in the country, with trunk diameters that rival Sequoias.

Kauri Pine

A coniferous tree native to the northern districts of the North Island of New Zealand and is the bigest…

"The common spindle tree (<em>Euonymus europaeus</em>) is a European shrub, which bears glossy lanceolate leaves, and in late spring clusters of small greenish flowers, followed by fruits which become beautifully rose colored."—Finley, 1917

Spindle Tree

"The common spindle tree (Euonymus europaeus) is a European shrub, which bears glossy lanceolate…

Flower of the spindle tree.

Spindle Tree Flower

Flower of the spindle tree.

Fruit of the spindle tree.

Spindle Tree Fruit

Fruit of the spindle tree.

"Path of current through person receiving a shock from the fame of a machine insulated from ground. (There is an accidental tree ground on the line and a accidental ground in the winding of the machine.)." &mdash;Croft 1920

Electric Shock

"Path of current through person receiving a shock from the fame of a machine insulated from ground.…

Triangle diagram for measuring heights of trees using proportions.

Using Proportions To Find Heights of Trees

Triangle diagram for measuring heights of trees using proportions.

Triangle diagram for measuring heights of trees using proportions

Using Proportions To Find Heights of Trees

Triangle diagram for measuring heights of trees using proportions