Flower of Frostweed, (Gray, 1858).

Flower

Flower of Frostweed, (Gray, 1858).

Flowers of St. John's Wort, (Gray, 1858).

Flower

Flowers of St. John's Wort, (Gray, 1858).

piece of Side-flowering Sandwort,(Gray, 1858).

Flower

piece of Side-flowering Sandwort,(Gray, 1858).

Flower of Sandwort, magnified(Gray, 1858).

Flower

Flower of Sandwort, magnified(Gray, 1858).

The flower of the Marsh-Mallow.

Flower

The flower of the Marsh-Mallow.

The American Linden in flower.

Flower

The American Linden in flower.

The Common Flax flower, of the Order Linaceae, cut in half.

Flower

The Common Flax flower, of the Order Linaceae, cut in half.

The flower of a Buckthorn.

Flower

The flower of a Buckthorn.

The flower of a Buckhorn, cut in half.

Flower

The flower of a Buckhorn, cut in half.

The flower of the American Crab-Apple.

Flower

The flower of the American Crab-Apple.

Passion-flower.

Flower

Passion-flower.

Garden Gooseberry with flowers.

Flower

Garden Gooseberry with flowers.

Flower of the Stonecrop.

Flower

Flower of the Stonecrop.

Flower of the Dogwood, or Cornel.

Flower

Flower of the Dogwood, or Cornel.

Flower of the Dogwood, or Cornel.

Flower

Flower of the Dogwood, or Cornel.

Flower of the Honeysuckle.

Flower

Flower of the Honeysuckle.

Flower of the Honeysuckle.

Flower

Flower of the Honeysuckle.

Ovary of the Honeysuckle.

Flower

Ovary of the Honeysuckle.

individual flower of the Honeysuckle.

Flower

individual flower of the Honeysuckle.

Piece of Madder, in flower.

Flower

Piece of Madder, in flower.

Piece of Madder flower, cut in half.

Flower

Piece of Madder flower, cut in half.

Wheel-shaped flower of Nightshade.

Flower

Wheel-shaped flower of Nightshade.

Flower head of senecio vulgaris.

Flower head

Flower head of senecio vulgaris.

An illustration of the flower of a moss: ar, archegonium; an, antheridium; p, paraphysis; bl, leaf.

Flower of a Moss

An illustration of the flower of a moss: ar, archegonium; an, antheridium; p, paraphysis; bl, leaf.

Flower of Anemone,(Gray, 1858).

Anemone Flower

Flower of Anemone,(Gray, 1858).

Flower of Anemone, cut in half, (Gray, 1858).

Anemone Flower

Flower of Anemone, cut in half, (Gray, 1858).

This plant forms axillary flowers that appear scattered on the stem.

Axillary Flower

This plant forms axillary flowers that appear scattered on the stem.

This cluster of flowers is also known as a raceme. the plant is the Barberry.

Barberry Flower

This cluster of flowers is also known as a raceme. the plant is the Barberry.

Enlarged individual flower of the Barberry, (Gray, 1858).

Barberry Flower

Enlarged individual flower of the Barberry, (Gray, 1858).

This is the single flower of the Black Haw, Viburnum prunifolium, (Keeler, 1915).

Black Haw flower

This is the single flower of the Black Haw, Viburnum prunifolium, (Keeler, 1915).

Section of a flower of the Common Bluet, of the Order Rubiaceae.

Bluet Flower

Section of a flower of the Common Bluet, of the Order Rubiaceae.

Section of a flower of the Common Bluet, of the Order Rubiaceae.

Bluet Flower

Section of a flower of the Common Bluet, of the Order Rubiaceae.

This is the flower of the cherry blossom

Cherry Blossom Flower

This is the flower of the cherry blossom

Flowers of Chickory, all with strap-shaped corollas.

Chickory Flower

Flowers of Chickory, all with strap-shaped corollas.

Head of chickory flowers, divided lengthwise and enlarged.

Chickory Flower

Head of chickory flowers, divided lengthwise and enlarged.

This Lily of the Valley forms flower clusters, or racemes.

Cluster Flower

This Lily of the Valley forms flower clusters, or racemes.

Half of a head of flowers of Coreopsis.

Coreopsis Flower

Half of a head of flowers of Coreopsis.

Slice of a head of flowers of Coreopsis, with one ray flower, and one perfect disk-flower with its bract ir chaff.

Coreopsis Flower

Slice of a head of flowers of Coreopsis, with one ray flower, and one perfect disk-flower with its bract…

Flower of nasturtium cut through the middle to show the spur (s) and the nectar (n).

Cross-section flower

Flower of nasturtium cut through the middle to show the spur (s) and the nectar (n).

This is the flower cluster of the Mountain Laurel, Kalmia latifolia, (Keeler, 1915).

Mountain Laurel flower

This is the flower cluster of the Mountain Laurel, Kalmia latifolia, (Keeler, 1915).

The parts of a flower.

Parts of a flower

The parts of a flower.

"Contains both stamens and pistils, and the flowers are said to be perfect." —Fuller, 1910

Perfect flower

"Contains both stamens and pistils, and the flowers are said to be perfect." —Fuller, 1910

"The stamens are situated on the calyx, and they may be artificially removed or suppressed by nature, in which case we would have what is called a pistillate flower, which will produce fruit, if the pistils are fertilized from another flower." —Fuller, 1910

Pistillate flower

"The stamens are situated on the calyx, and they may be artificially removed or suppressed by nature,…

Half of the flower of the common Purslane, (Gray, 1858).

Purslane Flower

Half of the flower of the common Purslane, (Gray, 1858).

Flower of senecio vulgaris.

Senecio vulgaris flower

Flower of senecio vulgaris.

This is the raceme of flowers of Sourwood, Oxydendrum arboreum, (Keeler, 1915).

Sourwood flower

This is the raceme of flowers of Sourwood, Oxydendrum arboreum, (Keeler, 1915).

"As the Strawberry belongs to the Rose family, its flowers should in their natural state contain both stamens and pistils." —Fuller, 1910

Strawberry flower

"As the Strawberry belongs to the Rose family, its flowers should in their natural state contain both…

Stylized flower image

Stylized Flower

Stylized flower image

Here is a flower of a funnel or funnel shape.

Stylized flower

Here is a flower of a funnel or funnel shape.

This is a Trillium, with its flower terminal, that is, from the summit of the stem.

Terminal Flower

This is a Trillium, with its flower terminal, that is, from the summit of the stem.

Section of a seed of the Iris, or Flower-de-Luce, enlarged, showing its small embryo in the albumen, near the bottom.

Flower-de-Luce

Section of a seed of the Iris, or Flower-de-Luce, enlarged, showing its small embryo in the albumen,…

A European plant which grows in stagnant or nearly stagnant water. It has long, sword-shaped leaves, and bears an umbel of large reddish flowers at the end of its long stalk. This illustration shows 1) a cross-section of a flower, and 2) the fruit of the flowering rush.

Flowering Rush

A European plant which grows in stagnant or nearly stagnant water. It has long, sword-shaped leaves,…

This is a classification of a type of fruit.

Follicle (fruit)

This is a classification of a type of fruit.

Forking ramification of Lilac.

Forking Lilac

Forking ramification of Lilac.

A form of a type of flower.

Form of Calyx in Compositae

A form of a type of flower.

A form of a type of flower.

Form of Calyx in Compositae

A form of a type of flower.

A form of a type of flower.

Form of Calyx in Compositae

A form of a type of flower.

This illustration shows a form of a stamen, the part of a flower that holds pollen for reproduction.

Form of Stamen

This illustration shows a form of a stamen, the part of a flower that holds pollen for reproduction.

This illustration shows a form of a stamen, the part of a flower that holds pollen for reproduction.

Form of Stamen

This illustration shows a form of a stamen, the part of a flower that holds pollen for reproduction.

This illustration shows a form of a stamen, the part of a flower that holds pollen for reproduction.

Form of Stamen

This illustration shows a form of a stamen, the part of a flower that holds pollen for reproduction.