249 illustrations of trees including: ilex, incense cedar, india rubber, ironwood, judas tree, juglans, juneberry, juniper, kapok, kola, larch, laurel, limber pine, lime, linden, loblolly pine, locust, logwood, longleaf pine, loquat, maba, magnolia, mahogany, mangrove, maple, mulberry, mockernut, myrtle, norfolk island pine, and nutmeg

The fruid of the tropical or subtropical tree citrus medica, of the orange family, and originally native to the tropical portions of Asia. It is quite certain that lemons were unknown to the ancient Greeks and romans, and that this fruit was introduced into Spain by the Arabs about the 12th century.

Lemon

The fruid of the tropical or subtropical tree citrus medica, of the orange family, and originally native…

The fruit of a small tree belonging to the same natural order as the orange. There are numerous varieties of the lemon, but they may all be reduced to four general types. 1. The common or general lemon. 2. The thin-skinned lemon. 3. The sweet lemon. 4. The citron lemon.

Lemon

The fruit of a small tree belonging to the same natural order as the orange. There are numerous varieties…

Lemon is the common name of citrus limonia. It is a small tree with irregular branches. The flowers are large and reddish tinted in the bud. The fruit is yellow when ripe.

Lemon

Lemon is the common name of citrus limonia. It is a small tree with irregular branches. The flowers…

"The Lemon is the fruit of a small tree belonging to the same natural order as the orange. There are many varieties of the lemon."—(Charles Leonard-Stuart, 1911)

Lemon Branch

"The Lemon is the fruit of a small tree belonging to the same natural order as the orange. There are…

"The Lemon is the fruit of a small tree belonging to the same natural order as the orange. There are many varieties of the lemon."—(Charles Leonard-Stuart, 1911)

Lemon Cross-section

"The Lemon is the fruit of a small tree belonging to the same natural order as the orange. There are…

One of the most abundant of Caboniferous forest trees, especially in the earlier half of the Carboniferous Age, or to the middle of the Coal Period.

Lepidodendrids

One of the most abundant of Caboniferous forest trees, especially in the earlier half of the Carboniferous…

Leucothoe

Leucothoe

Leucothoe

The common name of libocedrus is Incense Cedar. The chilensis variety is native to Chili and grows thirty feet tall. The wood has an aromatic fragrance and is very hard and yellowish.

Fruiting Branch and Winged Seed of Libocedrus Chilensis

The common name of libocedrus is Incense Cedar. The chilensis variety is native to Chili and grows thirty…

The common name of libocedrus is incense cedar. The doniana variety has closely set branchlets. The tree grows between thirty and seventy feet tall.

Fruiting Branchlet of Libocedrus Doniana

The common name of libocedrus is incense cedar. The doniana variety has closely set branchlets. The…

Licula peltata is a showy, dwarf fan palm native to India. The leaves are round and three to five feet in diameter.

Licula Peltata

Licula peltata is a showy, dwarf fan palm native to India. The leaves are round and three to five feet…

Also known as Pinus flexilis. A pine cone of the Limber Pine tree.

Pine Cone of Limber Pine

Also known as Pinus flexilis. A pine cone of the Limber Pine tree.

Limes grow on trees in tropical regions.

Lime

Limes grow on trees in tropical regions.

Leaves mostly differentiated into blades and petioles.

Limnobium

Leaves mostly differentiated into blades and petioles.

An illustration of an linden branch.

Linden Branch

An illustration of an linden branch.

The fruit of the Linden, Tilia americana, (Keeler, 1915).

Linden Fruit

The fruit of the Linden, Tilia americana, (Keeler, 1915).

"Serrate leaf of American Linden (Tilia americana)." -Whitney, 1911

American Linden Leaf

"Serrate leaf of American Linden (Tilia americana)." -Whitney, 1911

A brachiopod plant known to have been around since the cambrian period.

Saxifraga Lingulata

A brachiopod plant known to have been around since the cambrian period.

The leaf of a live-oak tree.

Live-Oak Leaf

The leaf of a live-oak tree.

The leaves of the livistona australis palm tree are dark green and nearly circular. The tree grows eight feet tall.

Livistona Australis

The leaves of the livistona australis palm tree are dark green and nearly circular. The tree grows eight…

Livistona australis is a variety of palm tree. The leaves spread out like the ribs of a fan through the leaf blade.

Livistona Australis

Livistona australis is a variety of palm tree. The leaves spread out like the ribs of a fan through…

The livistona chinensis tree has large leaves that are over five feet broad. The leaves are fan shaped. The tree grows fifty feet tall.

Livistona Chinensis

The livistona chinensis tree has large leaves that are over five feet broad. The leaves are fan shaped.…

The leaves of the livistona hoogendorpii tree are a rich dark green and form a complete circle.

Livistona Hoogendorpii

The leaves of the livistona hoogendorpii tree are a rich dark green and form a complete circle.

Livistona humilis is native to north Australia. The stems are four to sixteen feet high. The leaf stalk has both small and large prickles.

Livistona Humilis

Livistona humilis is native to north Australia. The stems are four to sixteen feet high. The leaf stalk…

The leaves of the livistona rotundifolia tree are dark green. The leaves have an orb shaped blade three to five feet in diameter. The stem grows between forty and fifty feet tall.

Livistona Rotundifolia

The leaves of the livistona rotundifolia tree are dark green. The leaves have an orb shaped blade three…

The loblolly pine, also known as slash-pine is a common pine tree in the Virginias and Carolinas.

Loblolly pine (pinus toeda L.). Two-thirds natural size. detached cone scales dorsal view

The loblolly pine, also known as slash-pine is a common pine tree in the Virginias and Carolinas.

The loblolly pine, also known as slash-pine is a common pine tree in the Virginias and Carolinas.

Loblolly pine (pinus toeda L.). Two-thirds natural size. detached cone scales ventral view

The loblolly pine, also known as slash-pine is a common pine tree in the Virginias and Carolinas.

The loblolly pine, also known as slash-pine is a common pine tree in the Virginias and Carolinas.

Loblolly pine (pinus toeda L.). Two-thirds natural size. mature closed cone

The loblolly pine, also known as slash-pine is a common pine tree in the Virginias and Carolinas.

The loblolly pine, also known as slash-pine is a common pine tree in the Virginias and Carolinas.

Loblolly pine (pinus toeda L.). Two-thirds natural size. mature open cone

The loblolly pine, also known as slash-pine is a common pine tree in the Virginias and Carolinas.

This shows the cluster of three, slightly twisted leaves of the Loblolly Pine, Pinus taeda, (Keeler, 1915).

Loblolly Pine Needles

This shows the cluster of three, slightly twisted leaves of the Loblolly Pine, Pinus taeda, (Keeler,…

The loblolly pine, also known as slash-pine is a common pine tree in the Virginias and Carolinas.

Loblolly pine (pinus toeda L.). Two-thirds natural size. seed and wing

The loblolly pine, also known as slash-pine is a common pine tree in the Virginias and Carolinas.

The loblolly pine, also known as slash-pine is a common pine tree in the Virginias and Carolinas.

Loblolly pine (pinus toeda L.). Two-thirds natural size. young cones

The loblolly pine, also known as slash-pine is a common pine tree in the Virginias and Carolinas.

Also known as Pinus taeda. The pine cone of a Southeastern United States pine tree.

Pine Cone of Loblolly Pine

Also known as Pinus taeda. The pine cone of a Southeastern United States pine tree.

These are the seeds or racemes of the Locust blossoms, Robinia pseudoacacia,(Keeler, 1915).

Locust Blossom Seeds

These are the seeds or racemes of the Locust blossoms, Robinia pseudoacacia,(Keeler, 1915).

"Pinnately compound leaf of locust, with spines for stipules." -Bergen, 1896

Locust Leaf

"Pinnately compound leaf of locust, with spines for stipules." -Bergen, 1896

"Thorn stipules of locust." -Bergen, 1896

Locust Thorns

"Thorn stipules of locust." -Bergen, 1896

Also known as a carob tree or Ceratonia siliqua. It is a flowering shrub or tree native to the Mediterranean region. It is commonly cultivated for its edible seed pods.

Locust Tree

Also known as a carob tree or Ceratonia siliqua. It is a flowering shrub or tree native to the Mediterranean…

Leaves - compound (odd-feathered; leaflets, eleven to twenty-five); alternate; edge entire. Outline - oval or egg-shape. Apex, rounded. Base - rounded. Stem - of leaf, smooth, and covering the leaf-bud of the next year. Leaflets - very smooth, thin, often slightly tipped with the end of the mid-rib. Bark - of trunk, dark, rough, and very deeply ridged. The smaller branches and young trunks are armed with strong, triangular prickles, but these disappear when the parts are three to four inches thick. Flowers - showy and abundant; in long, loose clusters drooping from the sides of the branchlets; white; and very fragrant. May, June. Fruit - a smooth and rather blunt pod, two to three inches long, one and a half inches wide, four- to six-seeded. Seeds, dark brown. September. Found - Native in the Alleghany Mountains from Pennsylvania (Monroe County - Porter) to Georgia; but now very generally naturalized throughout the United States east of the Rocky Mountains. General Information - A tree usually forty to fifty feet high, sometimes ninety feet, and of rapid growth. Its wood is exceedingly hard and strong, and remarkable durable when in contact with the ground. It is used largely for posts, in ship-building, and in turnery, and it is preferred to all other native wood for tree nails. It is one of the most valuable trees of this or of any country. But is cultivation as a timber tree, which at one time was very general, has nearly ceased in the United State on account of the constant damage done by the grub of the Painted Clytus (Clytus pictus). This troublesome borer not only injures the new growth, but also pierces and detaches large branches, leaving the tree ragged and stunted.

Genus Robinia, L. (Locust)

Leaves - compound (odd-feathered; leaflets, eleven to twenty-five); alternate; edge entire. Outline…

Also known as Pinus contorta. The pine cone of a Lodgepole Pine tree, commonly found in western North America.

Pine Cone of Lodgepole Pine

Also known as Pinus contorta. The pine cone of a Lodgepole Pine tree, commonly found in western North…

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

Leaves, flowers, and seeds from the Logwood tree (Haematoxylum campechianum).

Logwood

Leaves, flowers, and seeds from the Logwood tree (Haematoxylum campechianum).

Leaves - simple; alternate; edge toothed. Outline - very broad oval (approaching diamond shape). Apex - pointed. Base - pointed. Leaf/Stem - flattened sidewise. Leaf - usually about two inches long, width and length about the same. General Information - introduced about one hundred years ago from Italy, and now often found in old settlements. A tall and very slender tree, with crowded, perpendicular branches.

Genus Populus, L. (Aspen, Poplar)

Leaves - simple; alternate; edge toothed. Outline - very broad oval (approaching diamond shape). Apex…

Leaves - simple; alernate (sic); edge usually obscurely toothed, but varying from quite sharp-toothed to almost entire and slightly wavy. Outline - oval or reverse egg-shape. Apex - sharp (or sometimes rather blunted). Base - narrowing to a point (or sometimes slightly rounded). Leaf - two to four inches long; soft, downy, and almost velvety beneath; smoothish above; ribs distinct. Bark - of trunk, dark colored; of the branches, usually yellow; twigs, reddish-brown, straight and tough, downy when young, becoming smooth. Found - along borders of woods, and on low grounds, from New England to Pennsylvania, far westward and northward. General Information - A tall tree (or sometimes a shrug), four to fifteen feet high. Salix from two Celtic words meaning "near" and "water."

Genus Salix, L. (Willow)

Leaves - simple; alernate (sic); edge usually obscurely toothed, but varying from quite sharp-toothed…

The longleaf pine commonly found in the South Atlantic and Gulf States. The longleaf pine branch has a terminal bud.

Longleaf Pine (Pinus palustris Mill.). Two-thirds natural size. Branch with terminal bud

The longleaf pine commonly found in the South Atlantic and Gulf States. The longleaf pine branch has…

The longleaf pine has a type of pine cone that is large, open and commonly found in the South Atlantic and Gulf States.

Longleaf Pine (Pinus palustris Mill.). Open cone, natural size.

The longleaf pine has a type of pine cone that is large, open and commonly found in the South Atlantic…

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves come 3 in a bundle, 9 to 12 inches long.

Longleaf Pine (Pinus palustris Mill.). Two-thirds natural size. Leaf bundle.

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves come 3 in a bundle,…

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves are 9 to 12 inches long.

Longleaf Pine (Pinus palustris Mill.). Two-thirds natural size. Primary leaf bracts (magnified)

The longleaf pine commonly found in the South Atlantic and Gulf States. The leaves are 9 to 12 inches…

Also known as Pinus palustris. The pine cone of a Longleaf Pine tree.

Pine Cone of Longleaf Pine

Also known as Pinus palustris. The pine cone of a Longleaf Pine tree.

This shows the leaf of the Longleaf Willow, Salix fluviatilis, (Keeler, 1915).

Longleaf Willow Leaf

This shows the leaf of the Longleaf Willow, Salix fluviatilis, (Keeler, 1915).

Loquat is a small, evergreen fruit tree native to China and Japan. The fruit ripens in the spring. The flavor of the fruit is similar to a cherry.

Loquat

Loquat is a small, evergreen fruit tree native to China and Japan. The fruit ripens in the spring. The…

Loquat is native to China and Japan. The fruit is pear shaped, yellow, and about an inch and a half long. The flavor is acidic but tasty.

Loquat

Loquat is native to China and Japan. The fruit is pear shaped, yellow, and about an inch and a half…

The branch of a Lyonothamnus tree, which is native to the Channel Islands of California.

Branch of Lyonothamnus

The branch of a Lyonothamnus tree, which is native to the Channel Islands of California.

"Maba elliptica. 1. a flower; 2. a male corolla cut open; 3. a calyx and pistil; 4. fruit; 5. its section; 6. a perpendicular section of a seed." -Lindley, 1853

Maba

"Maba elliptica. 1. a flower; 2. a male corolla cut open; 3. a calyx and pistil; 4. fruit; 5. its section;…

The leaves of macrozamia spiralis are a bright, shining green except for at the base. The leaves at the base are ivory white forming a broad central white stripe.

Macrozamia Spiralis

The leaves of macrozamia spiralis are a bright, shining green except for at the base. The leaves at…

The magnolia, in the southern part of the US, is characterized by its splendid blossoms, which give the most enchanting appearance to the forests where it is found.

Magnolia

The magnolia, in the southern part of the US, is characterized by its splendid blossoms, which give…

This is "a flowering branch of a cucumber-tree, Magnolia acuminata", (Keeler, 1915).

Magnolia

This is "a flowering branch of a cucumber-tree, Magnolia acuminata", (Keeler, 1915).

Leaves silvery beneath.

Magnolia

Leaves silvery beneath.

Outer-most bud-scale detached

Magnolia

Outer-most bud-scale detached

Stage in the growth of ovule of a Magnolia.

Magnolia

Stage in the growth of ovule of a Magnolia.

A completely anatropous ovule of a Magnolia

Magnolia

A completely anatropous ovule of a Magnolia

Longitudinal section of a completely anatropous ovule.

Magnolia

Longitudinal section of a completely anatropous ovule.