"Transverse section of an involute leaf." — Encyclopedia Britanica, 1893

Involute Leaf

"Transverse section of an involute leaf." — Encyclopedia Britanica, 1893

"Transverse section of a revolute leaf." — Encyclopedia Britanica, 1893

Revolute Leaf

"Transverse section of a revolute leaf." — Encyclopedia Britanica, 1893

"Transverse section of a bud, in which the leaves are arranged in an accumbent manner." — Encyclopedia Britanica, 1893

Bud

"Transverse section of a bud, in which the leaves are arranged in an accumbent manner." — Encyclopedia…

"Transverse section of a bud, in which the leaves are arranged in an equitant manner." — Encyclopedia Britanica, 1893

Bud

"Transverse section of a bud, in which the leaves are arranged in an equitant manner." — Encyclopedia…

"Transverse section of a bud, showing two leaves folded in an obvolute manner. Each is conduplicate, and one embraces the edge of the other." — Encyclopedia Britanica, 1893

Bud

"Transverse section of a bud, showing two leaves folded in an obvolute manner. Each is conduplicate,…

"Transverse section of a bud, showing two leaves arranged in a supervolute manner." — Encyclopedia Britanica, 1893

Bud

"Transverse section of a bud, showing two leaves arranged in a supervolute manner." — Encyclopedia…

A cabbage plusia caterpillar crawling on a leaf.

Caterpillar

A cabbage plusia caterpillar crawling on a leaf.

A biennial herb native to Europe. Its leaves and flowers are poisonous to humans and some animals.

Purple Foxglove

A biennial herb native to Europe. Its leaves and flowers are poisonous to humans and some animals.

"The Tortricina include a great number of small moths exceedingly injurious to orchard and other trees. They are known as "leaf-rollers" from the habit which most of their larva have of rolling up the leaves on which they feed, and thus forming a shelter for themselves. The Green Tortrix occurs in the larva state on the oak, to which it often does great injurt by stripping the trees of their leaves in the month of June. Throughout Southern Europe the vine is liable to the ravages of another species, Aenectra pillariana, while few of our fruit trees are exempt from the occasional attacks of some species or other of the Carpocapsidae, the fruit-eating family of this group." — Encyclopedia Britanica; 1893

Tortricina

"The Tortricina include a great number of small moths exceedingly injurious to orchard and other trees.…

Larva feeding on a grape leaf.

Larva

Larva feeding on a grape leaf.

A leaf with four leaflets, as sometimes that of a clover.

Quatrefoil

A leaf with four leaflets, as sometimes that of a clover.

A leaf with four leaflets, as sometimes that of a clover.

Quatrefoil

A leaf with four leaflets, as sometimes that of a clover.

A leaf with four leaflets, as sometimes that of a clover.

Quatrefoil

A leaf with four leaflets, as sometimes that of a clover.

"Many plans may be propagated by planting their leaves or portions of their leaves as cuttings, as, for example, the herbaceous Gloxinia (a) and Gesnera, the succulent Sempervivum, Echeveria, Pachyphytum, and their allies and such hard-leaved plants as Theophrasta (b). The leaves are best taken off with the base whole, and should be planted in well-drained sandy soil; in due time they form roots, and ultimately from some latent bud a little shoot which forms the young plant. The treatment is precisely like that of branch cuttings. Gloxinias, begonias, etc., grow readily from fragments of the leaves cut clean through the thick veins and ribs, and planted edgewise like cuttings. This class of subjects may also be fixed flat on the surface of the cutting pot, by means of little pegs or hooks, the main ribs being cut across at intervals, and from these points roots, and eventually young tubers, will be produced." — Encyclopedia Britannica, 1893

Leaf Cuttings

"Many plans may be propagated by planting their leaves or portions of their leaves as cuttings, as,…

"Many plans may be propagated by planting their leaves or portions of their leaves as cuttings, as, for example, the herbaceous Gloxinia (a) and Gesnera, the succulent Sempervivum, Echeveria, Pachyphytum, and their allies and such hard-leaved plants as Theophrasta (b). The leaves are best taken off with the base whole, and should be planted in well-drained sandy soil; in due time they form roots, and ultimately from some latent bud a little shoot which forms the young plant. The treatment is precisely like that of branch cuttings. Gloxinias, begonias, etc., grow readily from fragments of the leaves cut clean through the thick veins and ribs, and planted edgewise like cuttings. This class of subjects may also be fixed flat on the surface of the cutting pot, by means of little pegs or hooks, the main ribs being cut across at intervals, and from these points roots, and eventually young tubers, will be produced." — Encyclopedia Britannica, 1893

Leaf Cuttings

"Many plans may be propagated by planting their leaves or portions of their leaves as cuttings, as,…

"This mode of propagation is performed by cutting the branches into short lengths, each containing one well-matured bud or eye, with a short portion of the stem above and below. It is a common mode of propagating vines, the eyes being in this case cut from the ripened leafless wood. The eyes (a) are planted just below the surface in pots of light soil, which are placed in a hot bed or propagating pit, and in due time each pushed up a young shoot which forms the future stem, while convert it into an independent plant." — Encyclopedia Britannica, 1893

Single Eye

"This mode of propagation is performed by cutting the branches into short lengths, each containing one…

Wavy; tending to be sinuate, but less even; undulate; said chiefly of leaves and leaf margins.

Repand Leaf

Wavy; tending to be sinuate, but less even; undulate; said chiefly of leaves and leaf margins.

"Arrow-root (M. arundinacea). a, tubers; b, leaf and flowers; c, stamen and style." — Chambers' Encyclopedia, 1875

Arrow-root

"Arrow-root (M. arundinacea). a, tubers; b, leaf and flowers; c, stamen and style." — Chambers'…

"Convolvulus: a, part of stem with leaves and flower; b, a flower-stalk and flower, the corolla and stamens removed." — Chambers' Encyclopedia, 1875

Convolvulus

"Convolvulus: a, part of stem with leaves and flower; b, a flower-stalk and flower, the corolla and…

"Cornel: a, a branch with leaves and fruit; b, a single flower." — Chambers' Encyclopedia, 1875

Cornel

"Cornel: a, a branch with leaves and fruit; b, a single flower." — Chambers' Encyclopedia, 1875

"Cranberry (Vaccinium palustris): a, part of stem and branches, with roots, leaves, and flowers; b, a berry; c, transverse section of a berry." — Chambers' Encyclopedia, 1875

Cranberry

"Cranberry (Vaccinium palustris): a, part of stem and branches, with roots, leaves, and flowers; b,…

"In Gothic Architecture, are projecting leaves, flowers, or bunches of foliage, used to decorate the angles of spires, canopies and pinnacles. The varieties of crockets are innumerable, almost every kind of leaf and flower being copied for the purpose." — Chambers' Encyclopedia, 1875

Crockets

"In Gothic Architecture, are projecting leaves, flowers, or bunches of foliage, used to decorate the…

"In Gothic Architecture, are projecting leaves, flowers, or bunches of foliage, used to decorate the angles of spires, canopies and pinnacles. The varieties of crockets are innumerable, almost every kind of leaf and flower being copied for the purpose." — Chambers' Encyclopedia, 1875

Crockets

"In Gothic Architecture, are projecting leaves, flowers, or bunches of foliage, used to decorate the…

"Dogbane. a, end of branch, with leaves and flowers; b, a flower cut open; c, fruit." — Chambers' Encyclopedia, 1875

Dogbane

"Dogbane. a, end of branch, with leaves and flowers; b, a flower cut open; c, fruit." — Chambers'…

"Flower-stock, Leaves, and cluster of Berries of the Common Elder (Sambucus nigra)." — Chambers' Encyclopedia, 1875

Common Elder

"Flower-stock, Leaves, and cluster of Berries of the Common Elder (Sambucus nigra)." — Chambers'…

"Leaf-shaped Flint Dagger." — The Encyclopedia Britannica, 1910

Dagger

"Leaf-shaped Flint Dagger." — The Encyclopedia Britannica, 1910

"Leaf-shaped bronze sword." — The Encyclopedia Britannica, 1910

Bronze Sword

"Leaf-shaped bronze sword." — The Encyclopedia Britannica, 1910

"Leaf of Sundew (Droscra rotundifolia)." — The Encyclopedia Britannica, 1893

Sundew

"Leaf of Sundew (Droscra rotundifolia)." — The Encyclopedia Britannica, 1893

"Leaf of Sundew, enlarged, with the tentacles on one side infected over a bit of meat placed on the disk." — The Encyclopedia Britannica, 1893

Sundew

"Leaf of Sundew, enlarged, with the tentacles on one side infected over a bit of meat placed on the…

"Leaf of Venus's Fly-trap (Dionaea muscipula), viewed laterally in its expanded state." — The Encyclopedia Britannica, 1893

Venus Fly-trap

"Leaf of Venus's Fly-trap (Dionaea muscipula), viewed laterally in its expanded state." — The…

"Leaf of Venus's Fly-trap (Dionaea muscipula), closed over insect, viewed from the side." — The Encyclopedia Britannica, 1893

Venus Fly-trap

"Leaf of Venus's Fly-trap (Dionaea muscipula), closed over insect, viewed from the side." — The…

"Leaf of Venus's Fly-trap (Dionaea muscipula), closed over insect, viewed from above." — The Encyclopedia Britannica, 1893

Venus Fly-trap

"Leaf of Venus's Fly-trap (Dionaea muscipula), closed over insect, viewed from above." — The Encyclopedia…

"Aldrovanda vesiculosa. Whorl of Leaves." — The Encyclopedia Britannica, 1893

Aldrovanda

"Aldrovanda vesiculosa. Whorl of Leaves." — The Encyclopedia Britannica, 1893

"Aldrovanda vesiculosa. Leaf pressed open and enlarged, showing glands, sensitive filaments, and quadrifid hairs." — The Encyclopedia Britannica, 1893

Aldrovanda

"Aldrovanda vesiculosa. Leaf pressed open and enlarged, showing glands, sensitive filaments, and quadrifid…

"Leaves of Sarracenta purpurea. A, attractive surface of lid; B, conducting, C, glandular, and D, detentive surface; magnified." — The Encyclopedia Britannica, 1893

Sarracenta

"Leaves of Sarracenta purpurea. A, attractive surface of lid; B, conducting, C, glandular, and D, detentive…

"Cephalotus follicularis, showing ordinary leaves and pitchers, the right hand one cut open to show internal structure." — The Encyclopedia Britannica, 1893

Cephalotus

"Cephalotus follicularis, showing ordinary leaves and pitchers, the right hand one cut open to show…

"Morphology of Pitchers. A, ordinary leaf of Cephalotus; B, monstrous leaf with spoon-shaped depression; C and D, other abnormal forms more deeply pouched, showing formation of pitcher; E, ordinary pitcher of Cephalotus; F, pitcher of Nepenthes; G, pitcher of Sarracenia; a, apex of leaf." — The Encyclopedia Britannica, 1893

Pitchers

"Morphology of Pitchers. A, ordinary leaf of Cephalotus; B, monstrous leaf with spoon-shaped depression;…

"Leaf of a diptych, Roman, probably about 4th century, South Kensington Museum collection." — The Encyclopedia Britannica, 1893

Ivory Carving

"Leaf of a diptych, Roman, probably about 4th century, South Kensington Museum collection." —…

"A cross of thin gold work formed of four leaves." —The Encyclopedia Britannica, 1910

Cross

"A cross of thin gold work formed of four leaves." —The Encyclopedia Britannica, 1910

An irregular saw-toothed or pinnately incised with the lobes or teeth hooked backwards.

Runcinate Leaf

An irregular saw-toothed or pinnately incised with the lobes or teeth hooked backwards.

A leaf shaped like a triangle.

Sagittate Leaf

A leaf shaped like a triangle.

Leaf motif

Doodad

Leaf motif

A <em>lamellate</em> feeler has at its tip a series of elongate, flattened or leaf-like joints, usually applied close together to form a solid mass that conceals and protects the delicate sensory structure on the inner surface.

Lamellate Antenna

A lamellate feeler has at its tip a series of elongate, flattened or leaf-like joints, usually…

Hollyhock rust on the under side of a leaf.

Hollyhock Rust

Hollyhock rust on the under side of a leaf.

The Grape Leaf Hopper with wings expanded

Grape Leaf Hopper

The Grape Leaf Hopper with wings expanded

Oak tree leaf

Oak

Oak tree leaf

A loose-leaf ledger

Ledger

A loose-leaf ledger

The Caterpillar of a Gypsy Moth eating a leaf.

Gypsy Moth Caterpillar

The Caterpillar of a Gypsy Moth eating a leaf.

Blasia pusilla. The margin of the thallus bears leaf-like lobes

Bryophyta

Blasia pusilla. The margin of the thallus bears leaf-like lobes

Leaf of Butterwort with left margin inflected over a row of small flies

Butterwort

Leaf of Butterwort with left margin inflected over a row of small flies

Glands from surface of leaf by which the sticky liquid is secreted and by means of which the products of digestion are absorbed

Butterwort

Glands from surface of leaf by which the sticky liquid is secreted and by means of which the products…

A genus of plants or shrubs, mostly tropical, two species of which arecharacterized by large white flowers and deeply indented shining leaves.

Acanthus

A genus of plants or shrubs, mostly tropical, two species of which arecharacterized by large white flowers…

Acanthus of Corinthian Capital

Acanthus

Acanthus of Corinthian Capital

Seedling of Morning Glory more advanced (root cut away); cotyledons well developed into foliage-leaves: succeeding internode and leaf well developed, and the next forming.

Morning Glory Seedling

Seedling of Morning Glory more advanced (root cut away); cotyledons well developed into foliage-leaves:…

Spiny leafed trees or shrubs with bipinnate leaves

Acacia

Spiny leafed trees or shrubs with bipinnate leaves

Hairy plants of the legume family with pinnate leaves that produce red or purple flowers.

Indigo

Hairy plants of the legume family with pinnate leaves that produce red or purple flowers.

pinnate leaved palm that produces thick clusters of red flowers and fruit that produces high quality palm oils.

Oil palm

pinnate leaved palm that produces thick clusters of red flowers and fruit that produces high quality…

Piece of the stem of Virginia Creeper, bearing a leaf and a tendril.

Virginia Creeper

Piece of the stem of Virginia Creeper, bearing a leaf and a tendril.

Spine of Cockspur Thorn developed from an auxiliary bud, as the leaf-scar below witnesses: an accessory leaf-bud is seen at its base.

Cockspur Thorn

Spine of Cockspur Thorn developed from an auxiliary bud, as the leaf-scar below witnesses: an accessory…

Corm of Cyclamen. Roots from lower face, leaf-stalks and flower stalks from the upper.

Corm of Cyclamen

Corm of Cyclamen. Roots from lower face, leaf-stalks and flower stalks from the upper.