A Red Maple seedling with parts full-grown and bud at apex for further growth.

Maple Seedling

A Red Maple seedling with parts full-grown and bud at apex for further growth.

A Silver Maple embryo, taken out of the husk; upper part of growing stem cut off.

Silver Maple Embryo

A Silver Maple embryo, taken out of the husk; upper part of growing stem cut off.

An oak seedling.

Oak-seedling

An oak seedling.

Early state of germination.

Morning Glory Germination

Early state of germination.

Advanced stage of germination; caulicle or priamry stem, cotyleaons or seed-leaves, and the root well developed.

Morning Glory Germination

Advanced stage of germination; caulicle or priamry stem, cotyleaons or seed-leaves, and the root well…

A detached embryo from a Peony

Peony Embryo

A detached embryo from a Peony

A detached embryo from a Barberry

Barberry Embryo

A detached embryo from a Barberry

A detached embryo from a Potato-seed.

Potato-seed Embryo

A detached embryo from a Potato-seed.

A detached embryo from a Mirabilis, showing the very broad and leaf-like cotyledons, applied face to face, and the pair incurved.

Mirabilis Embryo

A detached embryo from a Mirabilis, showing the very broad and leaf-like cotyledons, applied face to…

A detached embryo from an Abronia umbellata.

Abronia umbellata Embryo

A detached embryo from an Abronia umbellata.

Seed of an onion, in an early germination stage.

Onion-seed

Seed of an onion, in an early germination stage.

Germinating onion, morre advanced; the chink at base of cotyledon opening for the protrusion of the plumule, consisting of a thread-shaped leaf.

Onion

Germinating onion, morre advanced; the chink at base of cotyledon opening for the protrusion of the…

Section of the base of germinating onion, showing plumule enclosed.

Onion

Section of the base of germinating onion, showing plumule enclosed.

Section of the base of germinating onion, showing plumule emerging.

Onion

Section of the base of germinating onion, showing plumule emerging.

Later stage of germinating onion, upper part cut off.

Onion

Later stage of germinating onion, upper part cut off.

A grain of Indian Corn, flatwise, cut away a little, so as to show the embryo, lying on the albumen, which makes the pincipal bulk of the seed.

Indian Corn Grain

A grain of Indian Corn, flatwise, cut away a little, so as to show the embryo, lying on the albumen,…

The embryo, taken out whole: the thick mass is the cotyledon; the narrow body partly enclosed by it is the plumule; the little projection at its base is the very short radicle enclosed in the sheathing base of the first leaf of the plumule.

Indian Corn Embryo

The embryo, taken out whole: the thick mass is the cotyledon; the narrow body partly enclosed by it…

Grain of Indian Corn in germination; the ascending sprout is the first leaf of the plumule, enclosing the younger leaves within; at its base the primary root has broken through.

Indian Corn Grain

Grain of Indian Corn in germination; the ascending sprout is the first leaf of the plumule, enclosing…

Grain of Indian Corn in advanced germination; the second and third leaves developing, while the sheathing first leaf does not further develop.

Indian Corn Grain

Grain of Indian Corn in advanced germination; the second and third leaves developing, while the sheathing…

Shoot of Shagbark Hickory, Carya alba.

Shagbark Hickory

Shoot of Shagbark Hickory, Carya alba.

Tartarean Honeysuckle, with three accessory buds in each axil

Honeysuckle

Tartarean Honeysuckle, with three accessory buds in each axil

A form of a taproot.

Taproot

A form of a taproot.

A form of a taproot.

Taproot

A form of a taproot.

A form of a taproot.

Taproot

A form of a taproot.

Twining or voluble stem of Morning-Glory.

Morning-Glory

Twining or voluble stem of Morning-Glory.

A piece of the running rootstock of the Peppermint, with its node or joint, and an axillary bud ready to grow.

Peppermint

A piece of the running rootstock of the Peppermint, with its node or joint, and an axillary bud ready…

Bulbet-like tubers, such as are occasionally formed on the stem of a Potato-plant above ground.

Tubers

Bulbet-like tubers, such as are occasionally formed on the stem of a Potato-plant above ground.

Corm of a Crocus, the investing sheaths or dead leaf-bases stripped off. The faint cross-lines represent the scars, where the leaves were attached, i. e. the nodes: the spaces between are the internodes. The exhausted corm of the previous year is underneath; forming ones for next year on the summit and sides.

Crocus

Corm of a Crocus, the investing sheaths or dead leaf-bases stripped off. The faint cross-lines represent…

Bulbets in the axils of leaves of a Tiger Lily

Tiger Lily

Bulbets in the axils of leaves of a Tiger Lily

A leaf of the Lily of the Valley

Lily of the Valley

A leaf of the Lily of the Valley

A leaf of the Calla Lily.

Calla Lily

A leaf of the Calla Lily.

A twice-primate leaf of the Honey-Locust.

Honey-Locust

A twice-primate leaf of the Honey-Locust.

Ternately decompound leaf of Meadow Rue.

Meadow Rue

Ternately decompound leaf of Meadow Rue.

Branch of Arbor-Vitae, with awl-shaped and scale-shaped leaves.

Arbor-Vitae

Branch of Arbor-Vitae, with awl-shaped and scale-shaped leaves.

The ambiguous leaf of Myrsiphyllum.

Myrsiphyllum

The ambiguous leaf of Myrsiphyllum.

Leaf of Ruscus, or Butcher's Broom

Ruscus

Leaf of Ruscus, or Butcher's Broom

Leaf of Red Clover: <em>at</em>, stipules, adhering to the base of <em>p</em>, the petiole; <em>b</em>, blade of three leaflets.

Red Clover

Leaf of Red Clover: at, stipules, adhering to the base of p, the petiole; b,…

Part of stem and leaf of Prince's-Feather (Polygonum orientale) with the united sheathing stipules forming a sheath or ocrea.

Prince's-Feather

Part of stem and leaf of Prince's-Feather (Polygonum orientale) with the united sheathing stipules forming…

Outer-most bud-scale detached

Magnolia

Outer-most bud-scale detached

Three-ranked arrangement, shown in a piece of the stalk of a Sedge, with the leaves cut off above their bases; the leaves are numbered in order, from 1 to 6.

Three-ranked

Three-ranked arrangement, shown in a piece of the stalk of a Sedge, with the leaves cut off above their…

Three-ranked arrangement, shown in a piece of the stalk of a Sedge. Diagram or cross-section, in one plane; showing two cycles of three.

Three-ranked

Three-ranked arrangement, shown in a piece of the stalk of a Sedge. Diagram or cross-section, in one…

Diagram of a shoot with its leaves 5-ranked, with a spiral line drawn from the attachment of one leaf to the next, and so only the parts on the side turned from the eye are fainter.

Five-ranked

Diagram of a shoot with its leaves 5-ranked, with a spiral line drawn from the attachment of one leaf…

A ground-plan of the 5-ranked shoot; the section of the leaves; a dotted line drawn from the edge of one leaf to that of the next marks out the spiral.

Five-ranked

A ground-plan of the 5-ranked shoot; the section of the leaves; a dotted line drawn from the edge of…

A raceme, with a general peduncle, pedicels, bracts, and bractlets. Plainly the bracts here answer to the leaves.

Raceme

A raceme, with a general peduncle, pedicels, bracts, and bractlets. Plainly the bracts here answer to…

A raceme

Raceme

A raceme

A corymb

Corymb

A corymb

An umbel

Umbel

An umbel

Catkin or ament of birch.

Birch

Catkin or ament of birch.

Diagram of an opposite-leaved plant, with a single terminal flower.

Opposite-Leaved

Diagram of an opposite-leaved plant, with a single terminal flower.

Diagram of opposite-leaved plant with a cyne of three flowers; <em>a</em> the first flower, of the main axis: <em>b b</em>, those of branches.

Opposite-Leaved

Diagram of opposite-leaved plant with a cyne of three flowers; a the first flower, of the main…

Diagram of opposite-leaved plant with a cyne of three flowers; <em>a</em> the first flower, of the main axis: <em>b b</em>, those of branches. Flowers of the third order.

Opposite-Leaved

Diagram of opposite-leaved plant with a cyne of three flowers; a the first flower, of the main…

Parts of the same, two of each kind, separated and displayed; the torus or receptacle in the centre; <em>a</em> a sepal; <em>b</em>, a petal; <em>c</em>, a stamen <em>d</em>, a pistil.

Sedum Ternatum

Parts of the same, two of each kind, separated and displayed; the torus or receptacle in the centre;…

Flower of a Crassula, diagram or ground-plan of same.

Crassula

Flower of a Crassula, diagram or ground-plan of same.

Diagram of flower of Trillium. In this, as in all such diagrams of cross-section of blossoms, the parts of the outer circle represent the calyx; the next, corolla; within, stames (here in two circles of three each, and the cross-section is through the anthers); in the centre, section of three ovaries joined into a compound one of three cells.

Trillium

Diagram of flower of Trillium. In this, as in all such diagrams of cross-section of blossoms, the parts…

Flower of Anemone Pennsylvanica; apetalous, hermaphrodite

Anemone Pennsylvanica

Flower of Anemone Pennsylvanica; apetalous, hermaphrodite

Flower of Saururus or Lizard's-tail; naked, but hermaphrodite.

Saururus

Flower of Saururus or Lizard's-tail; naked, but hermaphrodite.

Flower of Mustard

Mustard

Flower of Mustard

Its stamens and pistil separate and enlarged.

Mustard

Its stamens and pistil separate and enlarged.

Flower of a Violet

Violet

Flower of a Violet

Its calyx and corolla displayed: the five smaller parts are the sepals; the five intervening larger ones are the petals.

Violet

Its calyx and corolla displayed: the five smaller parts are the sepals; the five intervening larger…