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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.

Flower of a Monkshood

Monkshood

Flower of a Monkshood

Its parts displayed: five speals, the upper forming the hood; the two lateral alike, broad and flat; the two lower small. The two pieces under the hood represent the corolla, reduced to two odd-shaped petals; in centre the numerous stamens and three pistils.

Monkshood

Its parts displayed: five speals, the upper forming the hood; the two lateral alike, broad and flat;…

Diagram of the calyx and corolla; the three dotted lines in the place of missing petals.

Monkshood

Diagram of the calyx and corolla; the three dotted lines in the place of missing petals.

Flower of Datura Stramonium; gamosepalous and gamopetalous.

Datura Stramonium

Flower of Datura Stramonium; gamosepalous and gamopetalous.

Funnelform corolla of a common Morning Glory, detached from its polysepalous calyx.

Morning Glory

Funnelform corolla of a common Morning Glory, detached from its polysepalous calyx.

Front view of a papilionaceous corolla.

Corolla

Front view of a papilionaceous corolla.

View of a papilionaceous corolla, displaying <em>s</em>, Standard or Vexilluml <em>w</em>, wings, or Alae; <em>k</em>, Keel, or Carina.

Corolla

View of a papilionaceous corolla, displaying s, Standard or Vexilluml w, wings, or…

A slice of the head of flowers of a Coreopsis, with one tubular perfect flower (a) left standing on the receptacle, with its bractlet or chaff (b), one ligulate and meutral ray-flower (cc), and part of another; (dd), section or bracts or leaves of the involucre.

Coreopsis

A slice of the head of flowers of a Coreopsis, with one tubular perfect flower (a) left standing on…

Diagram of a flower of Linden, showing the calyx valvate and corolla imbricate in the bud, etc.

Linden

Diagram of a flower of Linden, showing the calyx valvate and corolla imbricate in the bud, etc.

Valvate-induplicate aestivation of calyx of common Virgin's-bower.

Virgin's-bower

Valvate-induplicate aestivation of calyx of common Virgin's-bower.

Valvate-involute aestivation of same in Vine-bower, Clematis Vitialla.

Vine-bower

Valvate-involute aestivation of same in Vine-bower, Clematis Vitialla.

Convulate eastivation, as in the corolla-lobes of Oleander

Oleander

Convulate eastivation, as in the corolla-lobes of Oleander

Diagram of a Flax-flower; calyx imbricated and corolla convolute in the bud.

Flax-flower

Diagram of a Flax-flower; calyx imbricated and corolla convolute in the bud.

Upper part of corolla of Datura Stramonium in the bud; and below a section showing the convolution of the plaits.

Datura Stramonium

Upper part of corolla of Datura Stramonium in the bud; and below a section showing the convolution of…

Five syngenesious stamens of a Coreopsis, with the tube laid open and displayed.

Coreopsis

Five syngenesious stamens of a Coreopsis, with the tube laid open and displayed.

Diagram of the lower part of an anther, cut across above, and the upper part of a leaf, to show how the one answers to the other; the filament to petiole, the connective to midrib; the two cells to the right and left halves of the blade.

Anther

Diagram of the lower part of an anther, cut across above, and the upper part of a leaf, to show how…

Stamen with the usual dehiscence of anther down the side of each cell.

Stamen

Stamen with the usual dehiscence of anther down the side of each cell.

Pollinium of an Orchis with some of the packets or partial pollinia.

Orchis

Pollinium of an Orchis with some of the packets or partial pollinia.

One of the partial pollinia, torn up at top to show the grains (which are each composed of four).

Orchis

One of the partial pollinia, torn up at top to show the grains (which are each composed of four).

An inrolled small leaf, such as in double-flowered Cherry blossoms is often seen to occupy the place of a pistil.

Cherry Blossom

An inrolled small leaf, such as in double-flowered Cherry blossoms is often seen to occupy the place…

A simple pistil (of Isopyrm), with ovary cut across; the inner (ventral) face turned toward the eye: the ovules seem to be borne on the ventral suture, answering to leaf-margins: the stigma above seen also to answer to leaf margins.

Pistil

A simple pistil (of Isopyrm), with ovary cut across; the inner (ventral) face turned toward the eye:…

Pod or simple pistil of Caltha or Marsh-Marigold, which has opened and shed its seeds.

Pod

Pod or simple pistil of Caltha or Marsh-Marigold, which has opened and shed its seeds.

Plan of a one-celled ovary of three carpel-leaves, with parietal placentae, cut across below, where it is complete; the upper part showing the top of the three leaves it is composed of, approaching, but not united.

Sandwort

Plan of a one-celled ovary of three carpel-leaves, with parietal placentae, cut across below, where…

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.

A pistil, that is, a scale of the cone, of a Larch, at the time of flowering; inside view, showing its pair of naked ovules.

Pistil

A pistil, that is, a scale of the cone, of a Larch, at the time of flowering; inside view, showing its…

Branchlet of the American Arbor-Vitae, considerably larger than in nature, terminated by its pistillate flowers, each consisting of a single scale (an open pistil), together forming a small cone.

Arbor-Vitae

Branchlet of the American Arbor-Vitae, considerably larger than in nature, terminated by its pistillate…

One of the scales or carpels of the American Arbor-Vitae, the inside exposed to view, showing a pair of ovules on its base.

Arbor-Vitae

One of the scales or carpels of the American Arbor-Vitae, the inside exposed to view, showing a pair…

A cluster of ovules, pendulous on their funicles

Ovules

A cluster of ovules, pendulous on their funicles

Orthotropous ovule of Buckwheat: <em>c</em>, hilum and chalaza; <em>f</em>, orifice.

Buckwheat

Orthotropous ovule of Buckwheat: c, hilum and chalaza; f, orifice.

Campylotropous ovule of a Chickweed: <em>c</em>, hilum and chalaza: <em>f</em>, orifice.

Chickweed

Campylotropous ovule of a Chickweed: c, hilum and chalaza: f, orifice.

Amphitropous ovule of Mallow: <em>f</em>, orifice; <em>h</em>, hilum; <em>r</em>, rhaphe; <em>c</em>, chalaza.

Mallow

Amphitropous ovule of Mallow: f, orifice; h, hilum; r, rhaphe; c,…

Anatropous ovule of a Violet

Violet

Anatropous ovule of a Violet

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.

Transverse section of a completely anatropous ovule of a Magnolia.

Magnolia

Transverse section of a completely anatropous ovule of a Magnolia.

Pistil of Geranium or Cranesbill

Pistil

Pistil of Geranium or Cranesbill

Pistil of Geranium or Cranesbill, ripe, with the five carpels splitting away from the long beak (carpophore), and hanging from its top by their recurving styles.

Pistil

Pistil of Geranium or Cranesbill, ripe, with the five carpels splitting away from the long beak (carpophore),…

Longitudinal section of a young strawberry.

Strawberry

Longitudinal section of a young strawberry.

Section of a part of a strawberry

Strawberry

Section of a part of a strawberry

Section of a part of a blackberry.

Blackberry

Section of a part of a blackberry.

One of its component simple fruits (drupe) in section, showing the pulp, stone, and contained seed.

Blackberry

One of its component simple fruits (drupe) in section, showing the pulp, stone, and contained seed.

Pepo of Gourd

Gourd

Pepo of Gourd

One carpel of pepo of Gourd.

Gourd

One carpel of pepo of Gourd.

Longitudinal and transverse sections of a pear.

Pear

Longitudinal and transverse sections of a pear.

Grain of a mulberry with fleshy calyx cut across.

Mulberry

Grain of a mulberry with fleshy calyx cut across.

Seed of a Linden or Basswood cut through lengthwise, the parts lettered: <em>a</em>, the hilum or scar; <em>b</em>, the outer coat; <em>c</em>, the inner; <em>d</em>, the alhumen; <em>e</em>, the embryo.

Seed

Seed of a Linden or Basswood cut through lengthwise, the parts lettered: a, the hilum or scar;…

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

Violet

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

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,…

Seed of a St. John's-wort, divided lengthwise; here the whole kernel is embryo.

St. John's-wort

Seed of a St. John's-wort, divided lengthwise; here the whole kernel is embryo.

Seed of Bitter Cress, Barbarea, cut across to show the accumbent cotyledons.

Bitter Cress

Seed of Bitter Cress, Barbarea, cut across to show the accumbent cotyledons.

Whole embryo of Bitter Cress, Barbarea.

Bitter Cress

Whole embryo of Bitter Cress, Barbarea.

Cells of young root of a seedling Maple.

Maple

Cells of young root of a seedling Maple.

Section through the thickness of a leaf of Florida Star-Anise.

Florida Star-Anise

Section through the thickness of a leaf of Florida Star-Anise.

Magnified wood-cells of the bark (bast-cells) of Basswood, one and part of another.

Basswood

Magnified wood-cells of the bark (bast-cells) of Basswood, one and part of another.

Magnified wood-cells of the bark (bast-cells) of Basswood, one and part of another.

Basswood

Magnified wood-cells of the bark (bast-cells) of Basswood, one and part of another.