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The Huito (Genipa americana) is a small tree with edible fruit in the madder family, Rubiaceae.

Huito

The Huito (Genipa americana) is a small tree with edible fruit in the madder family, Rubiaceae.

"1. Hydrangeaa virens and its flower. 2. seed-vessel of H. hortensis; 3. its seed; 4. a section of it." -Lindley, 1853

Hydrangea

"1. Hydrangeaa virens and its flower. 2. seed-vessel of H. hortensis; 3. its seed; 4. a section of it."…

Compound cyme of Hydrangea arborescens, with neutral enlarged flowers round the circumference.

Hydrangea arborscens

Compound cyme of Hydrangea arborescens, with neutral enlarged flowers round the circumference.

This is a decoration of the neck of a Greek Hydria.

Greek Hydria

This is a decoration of the neck of a Greek Hydria.

Portion of the united calyx investing the fruit.

Hypanthium

Portion of the united calyx investing the fruit.

Cross section of an ovary of Hypericum graveolens with the placentae now separate and rounded.

Hypericum graveolens

Cross section of an ovary of Hypericum graveolens with the placentae now separate and rounded.

The double peristome of a Hypnum.

Hypnum

The double peristome of a Hypnum.

Ilex cornuta is a variety of holly. The berries of this variety are large. The leaves are hard and dark green. The leaves usually have three strong spines at the end.

Habit, Flowering Branch, and Flower of Ilex Cornuta

Ilex cornuta is a variety of holly. The berries of this variety are large. The leaves are hard and dark…

Ilex crenata variegata is a variety of holly. This variety has leaves blotched with dull yellow.

Branchlet of Ilex Crenata Variegata

Ilex crenata variegata is a variety of holly. This variety has leaves blotched with dull yellow.

Spirally overlapping.

Imbricate

Spirally overlapping.

Cut sharply, irregularly, and more or less deeply.

Incised

Cut sharply, irregularly, and more or less deeply.

Spadix and spathe of the Indian Turnip; the latter cut through below.

Indian Turnip

Spadix and spathe of the Indian Turnip; the latter cut through below.

"Experiment to illustrate electrostatic induction. The leaves will diverge, ever though the charged ebonite rod does not approach to within a foot of the electroscope." -Hawkins, 1917

Electrostatic Induction

"Experiment to illustrate electrostatic induction. The leaves will diverge, ever though the charged…

Rolled inwardly toward the midrib.

Involute

Rolled inwardly toward the midrib.

Rootstock and equitant leaves of Iris.

Iris

Rootstock and equitant leaves of Iris.

"Roots, rootstocks, and leaves of iris." -Bergen, 1896

Iris

"Roots, rootstocks, and leaves of iris." -Bergen, 1896

A section across the cluster of leaves at the bottom, showing the equitation.

Iris cluster

A section across the cluster of leaves at the bottom, showing the equitation.

Iris histrio flowers are a lilac purple color. Each spathe has one flower.

Flowers and Leaves of Iris Histrio

Iris histrio flowers are a lilac purple color. Each spathe has one flower.

Plant of Isoetes

Isoetes

Plant of Isoetes

Base of a leaf and contained sporocarp filled with microspores cut across.

Isoetes

Base of a leaf and contained sporocarp filled with microspores cut across.

Base of a leaf and contained sporocarp filled with microspores cut lengthwise.

Isoetes

Base of a leaf and contained sporocarp filled with microspores cut lengthwise.

Section of a spore-case containing macrospores

Isoetes

Section of a spore-case containing macrospores

"1. Hedera Helix; 2. a flower of Dimorphanthus edulis; 3. perpendicular section of the ovary; 4. undivided ovary; 5. ripe fruit; 6. cross section of it; 7. section of seed of H. Helix." -Lindley, 1853

Ivy

"1. Hedera Helix; 2. a flower of Dimorphanthus edulis; 3. perpendicular section of the ovary; 4. undivided…

A tree which produces dark red flowers and fragrant green leaves. The leaves are oval and serrated. They are native to Japan.

Pyrus Japonica

A tree which produces dark red flowers and fragrant green leaves. The leaves are oval and serrated.…

"Jasminum ligustrifolium. 1. a corolla cut open; 2. vertical section of the ovary; 3. section of a seed of Nytanthes." -Lindley, 1853

Jasmine

"Jasminum ligustrifolium. 1. a corolla cut open; 2. vertical section of the ovary; 3. section of a seed…

This jug was made in Malta. It has a grape vine, with grapes and leaves around the center. The handle is designed in a leaf and vine style.

Jug

This jug was made in Malta. It has a grape vine, with grapes and leaves around the center. The handle…

This footed jug is designed with figures and leaves. It has a small handle at the top and a spout for pouring.

Footed Jug

This footed jug is designed with figures and leaves. It has a small handle at the top and a spout for…

Kava or Piper methysticum is a crop from the pepper family.

Kava

Kava or Piper methysticum is a crop from the pepper family.

Possessing a central ridge as a boat.

Keeled

Possessing a central ridge as a boat.

Also known as Betula kenaica. A species of birch tree.

Branch of Kenai Birch

Also known as Betula kenaica. A species of birch tree.

Catha edulis or Khat is a flowering plant of the Celastraceae family.

Khat

Catha edulis or Khat is a flowering plant of the Celastraceae family.

From left to right: Serrate, Dentate, Crenate, Wavy, Sinuate, Incised.

Kinds of Margin of Leaves

From left to right: Serrate, Dentate, Crenate, Wavy, Sinuate, Incised.

An illustration of a Lace-Leaf plant also known as a Lattice Leaf or Lace Plant. The Lace-Leaf plant is an aquatic plant with oblong leaf blades measuring up to 65 cm. The leaves of the plant lay beneath the water and are purely skeletal, with not tissue. The flowers grow above the water's surface.

Lace-leaf Plant

An illustration of a Lace-Leaf plant also known as a Lattice Leaf or Lace Plant. The Lace-Leaf plant…

Irregularly cut as if torn.

Lacerate

Irregularly cut as if torn.

A greenish-red plant with laciniate-cut leaves. In the spring, edible crimson berries are produced and remain throughout the winter.

Rhus Glabra Laciniata

A greenish-red plant with laciniate-cut leaves. In the spring, edible crimson berries are produced and…

This cream ladle has a design that consists of stems, leaves, and flowers.

Cream Ladle

This cream ladle has a design that consists of stems, leaves, and flowers.

Shaped like a spear head, broadest near base, tapering to apex, and several times as long as broad.

Lanceolate

Shaped like a spear head, broadest near base, tapering to apex, and several times as long as broad.

A piece of stem of Larch with two clusters (fascicles) of numerous leaves.

Larch

A piece of stem of Larch with two clusters (fascicles) of numerous leaves.

Flower of a Larkspur

Larkspur

Flower of a Larkspur

Its calyx and corolla displayed; the five large parts are the sepals; the four smaller, of two shapes, are the petals; the place of the fifth petal is vacant.

Larkspur

Its calyx and corolla displayed; the five large parts are the sepals; the four smaller, of two shapes,…

Diagram of the calyx and corolla, the place for the missing petal marked by a dotted line.

Larkspur

Diagram of the calyx and corolla, the place for the missing petal marked by a dotted line.

Seed of a Larkspur (anatropous): <em>a</em>, hilum; <em>b</em>, rhaphe; <em>c</em>, chalaza.

Larkspur

Seed of a Larkspur (anatropous): a, hilum; b, rhaphe; c, chalaza.

Seed of a Larkspur (anatropous), cut lengthwise: <em>a</em>, the hilum; <em>c</em>, chalaza; <em>d</em>, outer seed-coat; <em>e</em>, inner seed-coat; <em>f</em>, the albumen; <em>g</em>, the minute embryo.

Larkspur

Seed of a Larkspur (anatropous), cut lengthwise: a, the hilum; c, chalaza; d,…

Leaf of Lathyrus Aphaca, consisting of a pair of stipules and a tendrils.

Lathyrus Aphaca

Leaf of Lathyrus Aphaca, consisting of a pair of stipules and a tendrils.

An illustration of a broad leaf laurel.

Broad leaf laurel

An illustration of a broad leaf laurel.

Here is leaf that is shaped like the head of an arrow.

Leaf

Here is leaf that is shaped like the head of an arrow.

Here is leaf that is shaped like a lance.

Leaf

Here is leaf that is shaped like a lance.

Here is leaf that is shaped like a trowel.

Leaf

Here is leaf that is shaped like a trowel.

Here is leaf that is shaped like a fiddle.

Leaf

Here is leaf that is shaped like a fiddle.

Here is a leaf that is shaped like a shield.

Leaf

Here is a leaf that is shaped like a shield.

Here is a leaf that has a tendril on the end of it which clasps around whatever it touches.

Leaf

Here is a leaf that has a tendril on the end of it which clasps around whatever it touches.

This leaf is notched all around its edge.

Leaf

This leaf is notched all around its edge.

This leaf is notched all around its edge.

Leaf

This leaf is notched all around its edge.

This leaf is spread out like a hand.

Leaf

This leaf is spread out like a hand.

This leaf is spread out like a hand.

Leaf

This leaf is spread out like a hand.

Leaves are arranged in a great many different ways on their stems. Here are three leaves together on a stem.

Leaf

Leaves are arranged in a great many different ways on their stems. Here are three leaves together on…

Leaves are arranged in a great many different ways on their stems. Here the leaf-stem has three little branches, and each branch has three leaves.

Leaf

Leaves are arranged in a great many different ways on their stems. Here the leaf-stem has three little…

Leaves are arranged in a great many different ways on their stems. On this leaf-stem are a great many leaves.

Leaf

Leaves are arranged in a great many different ways on their stems. On this leaf-stem are a great many…

One of the three principal parts or organs of vegetation, generally flattened in shape, and greenish in color.

Leaf

One of the three principal parts or organs of vegetation, generally flattened in shape, and greenish…

Top of a leaf, cut across; it consists of a single layer of cells.

Leaf

Top of a leaf, cut across; it consists of a single layer of cells.