Stigma style Black and White Stock Photos & Images

Black and white closeup of a white lily flower's stigma, style, stamens, filaments and petals in direct sunlight creating shadows. Stock Photo

RF2BAED5H–Black and white closeup of a white lily flower's stigma, style, stamens, filaments and petals in direct sunlight creating shadows.

A picture of Plantain Flower. The image is showing an Anther, stigma, style, petal and section of ovary, vintage line drawing or engraving illustratio Stock Vector

RFT5YTR4–A picture of Plantain Flower. The image is showing an Anther, stigma, style, petal and section of ovary, vintage line drawing or engraving illustratio

Close up of a delicate, white lime flower in monochrome surrounded by flower buds Stock Photo

RF2BFEMCB–Close up of a delicate, white lime flower in monochrome surrounded by flower buds

Lily close-up in black & white Stock Photo

RF2RFGEDJ–Lily close-up in black & white

Close-up of a waterlily (Nymphaea) flower, in monochrome, with a dark background Stock Photo

RF2B70AM8–Close-up of a waterlily (Nymphaea) flower, in monochrome, with a dark background

Rafflesia flower in Sabah, Borneo Stock Photo

RFE5T96A–Rafflesia flower in Sabah, Borneo

RMJGTKAM–Hogweed

Part of the petal structure of a narcissus flower has been cut away to show the internal parts of the trumpet that ensure pollination, Stock Photo

RM2F7WW79–Part of the petal structure of a narcissus flower has been cut away to show the internal parts of the trumpet that ensure pollination,

RF2B044T7–The shadow of mental health

Victorian engraving of a flower stamen and style. Digitally restored image from a mid-19th century Encyclopaedia. Stock Photo

RFEFRRJD–Victorian engraving of a flower stamen and style. Digitally restored image from a mid-19th century Encyclopaedia.

A picture describing ovary, style and stigma of the pistil, vintage line drawing or engraving illustration. Stock Vector

RFT5NNJ8–A picture describing ovary, style and stigma of the pistil, vintage line drawing or engraving illustration.

Break the stigma hand drawn brush calligraphy. Stock Vector

RF2JTNN4X–Break the stigma hand drawn brush calligraphy.

Picture shows form of stamen, the part of flower that holds pollen for reproduction. Carpel has long style with a stigma on which pollain may land. At Stock Vector

RFT604DD–Picture shows form of stamen, the part of flower that holds pollen for reproduction. Carpel has long style with a stigma on which pollain may land. At

White azalea flowers in bloom in spring. Photographed at RHS Wisley, in Surrey, UK. Stock Photo

RFTA8HP3–White azalea flowers in bloom in spring. Photographed at RHS Wisley, in Surrey, UK.

. Sclerocarya castanea Baker = Poupartia castanea (Baker) Engl., Anacardiaceae end of twig with leaves and inflorescence flower bud fully opened flower vertical section of flower stamen style and stigma fruiting branch of inflorescence transverse section of unripe fruit . 1879. Scan by the Internet Archive 273 PTRS168 0645 Stock Photo

RMP2BDD9–. Sclerocarya castanea Baker = Poupartia castanea (Baker) Engl., Anacardiaceae end of twig with leaves and inflorescence flower bud fully opened flower vertical section of flower stamen style and stigma fruiting branch of inflorescence transverse section of unripe fruit . 1879. Scan by the Internet Archive 273 PTRS168 0645

This image is from Dancing Girls Ginger Plant, in which has been told about its parts (1) Style, Stigma, and Ether, (2) Ovary, Style and abortive stam Stock Vector

RFT5X89B–This image is from Dancing Girls Ginger Plant, in which has been told about its parts (1) Style, Stigma, and Ether, (2) Ovary, Style and abortive stam

Details of the stamens and anther of a Daffodil. Pollen is produced and requires an insect such as a Bumblebee to mover pollen from the male stamen Stock Photo

RM2F3A574–Details of the stamens and anther of a Daffodil. Pollen is produced and requires an insect such as a Bumblebee to mover pollen from the male stamen

A picture shows different Parts of Synaphea Plant along with his flower, multi-lobed leaves, ovary, style and stigma. It has dense hairs on all over t Stock Vector

RFT5X6RE–A picture shows different Parts of Synaphea Plant along with his flower, multi-lobed leaves, ovary, style and stigma. It has dense hairs on all over t

Ex Libris in the shape of a heart made from the heads and neck of a swan. Illustration of the 19th century. Germany. White background. Stock Photo

RF2DF1GD5–Ex Libris in the shape of a heart made from the heads and neck of a swan. Illustration of the 19th century. Germany. White background.

RF2BAED5D–Black and white closeup of a white lily flower's stigma, style, stamens, filaments and petals in direct sunlight creating shadows.

Abstract background black and white color. Stock Photo

RFW5H9WB–Abstract background black and white color.

Endometriosis awareness month. Brush calligraphy style vector template design for banner, card, poster, background. Stock Vector

RF2HKGW5Y–Endometriosis awareness month. Brush calligraphy style vector template design for banner, card, poster, background.

RM2BK7RCW–Reedmace abstract

Psychology of suicide and suicidal severe depression therapy as a mental illness health concept as a noose transforming to hope as a surreal idea. Stock Photo

RFP16C40–Psychology of suicide and suicidal severe depression therapy as a mental illness health concept as a noose transforming to hope as a surreal idea.

RFE5T96M–Rafflesia flower in Sabah, Borneo

RM2BKT70K–Cuckoo Flower

The elements of botany for beginners and for schools . 9 10 which all likeness to leaves is lost, consisting of slender stalks with a knobat summit, the Stamens ; and lastly, in the centre, the rounded body,which becomes a pod, surmounted by five slender or stalk-like bodies.This, all together, is the Pistil. The lower part of it, which is to contain theseeds, is the Ovart ; the slender organs surmounting this are Styles ; theknob borne on the apex of each style is a Stigma. Going back to the sta-mens, these are of two parts, viz. the stalk, called Filament, and the bodyit bears, the Anther. A Stock Photo

RM2AXA4XY–The elements of botany for beginners and for schools . 9 10 which all likeness to leaves is lost, consisting of slender stalks with a knobat summit, the Stamens ; and lastly, in the centre, the rounded body,which becomes a pod, surmounted by five slender or stalk-like bodies.This, all together, is the Pistil. The lower part of it, which is to contain theseeds, is the Ovart ; the slender organs surmounting this are Styles ; theknob borne on the apex of each style is a Stigma. Going back to the sta-mens, these are of two parts, viz. the stalk, called Filament, and the bodyit bears, the Anther. A

RF2K2Y037–Ex Libris in the shape of a heart made from the heads and neck of a swan. Illustration of the 19th century. Germany. White background.

. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. FORM AND STRUCTURE that a number of pistils are found entirely separate ; as a rule they grow together and the parts unite or coalesce. A single pistil consists of ovary, style and stigma. The Ovary is a hollow case which contains the ovules ; the Stig- ma is the upper part, usually flattened, which is covered by an adhesive secretion and which receives the pollen ; the Style connects the ovary and the stigma. It may be want- ing, the stigma is then said to be sessile. (Fig. 36.) The Ov Stock Photo

RMPG2XDY–. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. FORM AND STRUCTURE that a number of pistils are found entirely separate ; as a rule they grow together and the parts unite or coalesce. A single pistil consists of ovary, style and stigma. The Ovary is a hollow case which contains the ovules ; the Stig- ma is the upper part, usually flattened, which is covered by an adhesive secretion and which receives the pollen ; the Style connects the ovary and the stigma. It may be want- ing, the stigma is then said to be sessile. (Fig. 36.) The Ov

Rose of Sharon pattern, simple style Stock Vector

RFHW39BB–Rose of Sharon pattern, simple style

RFPCKP4B–Rose of sharon icon in outline style isolated on white background. South Korea symbol vector illustration.

. Deutsch: Fruchtknoten von Fallopia convolvulus während der Befruchtung. fs stielartige Basis desselben, fu Funiculus, cha Chalaza, nu Nucellus, mi Micropyle, ii inneres, ie äußeres Integument, e Embryosack, ek Kern desselben, ei Eiapparat, an Antipoden, g Griffel, n Narbe, p Pollenkörner, ps Pollenschläuche. Vergr. 48. English: ovary of Fallopia convolvulus during fertilization. fs stalk-like base of it, fu funiculus, cha chalaza, nu nucellus, mi micropyle, ii inner, ie outer integument, e embryo sac, ek nucleus of it, ei egg cell with synergids, an antipodals, g style, n stigma, p pollen gr Stock Photo

RMMWC8PR–. Deutsch: Fruchtknoten von Fallopia convolvulus während der Befruchtung. fs stielartige Basis desselben, fu Funiculus, cha Chalaza, nu Nucellus, mi Micropyle, ii inneres, ie äußeres Integument, e Embryosack, ek Kern desselben, ei Eiapparat, an Antipoden, g Griffel, n Narbe, p Pollenkörner, ps Pollenschläuche. Vergr. 48. English: ovary of Fallopia convolvulus during fertilization. fs stalk-like base of it, fu funiculus, cha chalaza, nu nucellus, mi micropyle, ii inner, ie outer integument, e embryo sac, ek nucleus of it, ei egg cell with synergids, an antipodals, g style, n stigma, p pollen gr

RM2F3A5DC–Details of the stamens and anther of a Daffodil. Pollen is produced and requires an insect such as a Bumblebee to mover pollen from the male stamen

This is image of Lechenaultia flower. Picture showing calyx, stamens, and style, with stigma and indusium, vintage line drawing or engraving illustrat Stock Vector

RFT5YKX3–This is image of Lechenaultia flower. Picture showing calyx, stamens, and style, with stigma and indusium, vintage line drawing or engraving illustrat

The trumpet shaped inner structure of the Daffodil inflorescence protects the reproductive parts of the flower. Stock Photo

RM2F5EK0R–The trumpet shaped inner structure of the Daffodil inflorescence protects the reproductive parts of the flower.

RF2BAED77–Black and white closeup of a white lily flower's stigma, style, stamens, filaments and petals in direct sunlight creating shadows.

Cutting open the bloom of the Daffodil trumpet exposed the stamen and anthers of the plants reproductive parts. Bumble Bees are common pollinators Stock Photo

RM2F2RW1W–Cutting open the bloom of the Daffodil trumpet exposed the stamen and anthers of the plants reproductive parts. Bumble Bees are common pollinators

RF2HKGW5M–Endometriosis awareness month. Brush calligraphy style vector template design for banner, card, poster, background.

RFE5T96H–Rafflesia flower in Sabah, Borneo

RM2BKT7YF–Cuckoo Flower

. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. tulip(Fig. 138), and willows are composed of asingle straight column. The mustard and wil-low have a distinct style, but the hepatica andtulip differ in having none. That is, the stigmais often sessile on the ovary, from which we 140 LJESSONS WITS PLANTS conclude that while the ovary and stigma areessential to a pistil, the style is not. 154. In all the flowers which we have so far examined the styleis single; that is,there is only onestraight style on eachovary. In the apple,however (Fig. 13 Stock Photo

RM2AFR8Y5–. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. tulip(Fig. 138), and willows are composed of asingle straight column. The mustard and wil-low have a distinct style, but the hepatica andtulip differ in having none. That is, the stigmais often sessile on the ovary, from which we 140 LJESSONS WITS PLANTS conclude that while the ovary and stigma areessential to a pistil, the style is not. 154. In all the flowers which we have so far examined the styleis single; that is,there is only onestraight style on eachovary. In the apple,however (Fig. 13

RM2BKT65G–Dandelion seed head

. Handbook of flower pollination : based upon Hermann MuÌller's work 'The fertilisation of flowers by insects' . Fertilization of plants. ERICACEAE 53 stigma, upon which are damp glistening spots (considered as nectar by Ricca), that visitors lick, at the same time depositing any pollen adhering to their proboscis. Finding no nectar they climb up the style, attracted by the orange-yellow horns of the anthers, and busy themselves with the pollen, so that the proboscis is again dusted. Crossing is therefore easily effected by insects, but Hermann Miiller says that the projecting position of the Stock Photo

RMPG29E5–. Handbook of flower pollination : based upon Hermann MuÌller's work 'The fertilisation of flowers by insects' . Fertilization of plants. ERICACEAE 53 stigma, upon which are damp glistening spots (considered as nectar by Ricca), that visitors lick, at the same time depositing any pollen adhering to their proboscis. Finding no nectar they climb up the style, attracted by the orange-yellow horns of the anthers, and busy themselves with the pollen, so that the proboscis is again dusted. Crossing is therefore easily effected by insects, but Hermann Miiller says that the projecting position of the

RF2ATB4RW–Tire tread indicator icon, outline style

RMMX8RG7–. Deutsch: Fruchtknoten von Fallopia convolvulus während der Befruchtung. fs stielartige Basis desselben, fu Funiculus, cha Chalaza, nu Nucellus, mi Micropyle, ii inneres, ie äußeres Integument, e Embryosack, ek Kern desselben, ei Eiapparat, an Antipoden, g Griffel, n Narbe, p Pollenkörner, ps Pollenschläuche. Vergr. 48. English: ovary of Fallopia convolvulus during fertilization. fs stalk-like base of it, fu funiculus, cha chalaza, nu nucellus, mi micropyle, ii inner, ie outer integument, e embryo sac, ek nucleus of it, ei egg cell with synergids, an antipodals, g style, n stigma, p pollen gr

This showing part of rough stalked meadow grass upper side, the shape like a flowers there are some style and stigma, vintage line drawing or engravin Stock Vector

RFT6045P–This showing part of rough stalked meadow grass upper side, the shape like a flowers there are some style and stigma, vintage line drawing or engravin

RF2HKGW5C–Endometriosis awareness month. Brush calligraphy style vector template design for banner, card, poster, background.

. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. he pollen exerciseany other function than to impregnate the ovule? 377a. The body or sti-ucture which is impregnated is, strictlyspeaking, not the ovule but the egg-cell of the embryo-sac ; but anexplanation of the process of fecundation is not intended here. Thepollen grain sends out a tube (the process is generally called germi-nation), which penetrates the stigma and style and reaches theembryo-sac, where a sperm cell is discharged. As a rule, one pollengrain fecundates one egg-cell, but t Stock Photo

RM2AFNTH6–. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. he pollen exerciseany other function than to impregnate the ovule? 377a. The body or sti-ucture which is impregnated is, strictlyspeaking, not the ovule but the egg-cell of the embryo-sac ; but anexplanation of the process of fecundation is not intended here. Thepollen grain sends out a tube (the process is generally called germi-nation), which penetrates the stigma and style and reaches theembryo-sac, where a sperm cell is discharged. As a rule, one pollengrain fecundates one egg-cell, but t

RMPG41DW–. Our native trees and how to identify them : a popular study of their habits and their peculiarities . Trees. FORM AND STRUCTURE that a number of pistils are found entirely separate ; as a rule they grow together and the parts unite or coalesce. A single pistil consists of ovary, style and stigma. The Ovary is a hollow case which contains the ovules ; the Stig- ma is the upper part, usually flattened, which is covered by an adhesive secretion and which receives the pollen ; the Style connects the ovary and the stigma. It may be want- ing, the stigma is then said to be sessile. (Fig. 36.) The

This picture divided in three part ovary, style and stigma. The lower part is ovary, above part is style it is short, upper part is stigma. They conne Stock Vector

RFT5Y6WC–This picture divided in three part ovary, style and stigma. The lower part is ovary, above part is style it is short, upper part is stigma. They conne

Chinese ginger is also called the Galangal, its divided in parts as shown in picture as Flowers of Kaempferia pandurata, inner row of corolla, style a Stock Vector

RFT5YM1N–Chinese ginger is also called the Galangal, its divided in parts as shown in picture as Flowers of Kaempferia pandurata, inner row of corolla, style a

RF2HKGWDG–Endometriosis awareness month. Brush calligraphy style vector template design for banner, card, poster, background.

This image is showing a pistil example. The image is showing a Different shaped of pistil. It is shows a parts of pistil. This image shows an ovary, s Stock Vector

RFT60MAD–This image is showing a pistil example. The image is showing a Different shaped of pistil. It is shows a parts of pistil. This image shows an ovary, s

The Gynandria of Bletia's inflorescence is the rising from the branches, vintage line drawing or engraving illustration. Stock Vector

RFT5YMR5–The Gynandria of Bletia's inflorescence is the rising from the branches, vintage line drawing or engraving illustration.

The elements of botany for beginners and for schools . Fig. 283. Corolla of Morning Glory laid open, to show the five stamens insertedon it, near the base. Fig. 284. Style of a Ladys Slipper (Cypripedium), and stamens united with it;a, a, the anthers of the two good stamens; st, an abortive stamen, what shouldbe its anther changed into a petal-like body ; stig, the stigma. Fig. 285. Flower of Lobelia cardinalis. Cardinal flower; corolla making approachto the ligulate form; filaments {st) monadelphous, and anthers (.a), syngeaesious.. 100 STAMENS. [SECTION 9. Stock Photo

RM2AX2XBB–The elements of botany for beginners and for schools . Fig. 283. Corolla of Morning Glory laid open, to show the five stamens insertedon it, near the base. Fig. 284. Style of a Ladys Slipper (Cypripedium), and stamens united with it;a, a, the anthers of the two good stamens; st, an abortive stamen, what shouldbe its anther changed into a petal-like body ; stig, the stigma. Fig. 285. Flower of Lobelia cardinalis. Cardinal flower; corolla making approachto the ligulate form; filaments {st) monadelphous, and anthers (.a), syngeaesious.. 100 STAMENS. [SECTION 9.

Table of the Main Greek Ligatures, vintage engraved illustration. Dictionary of Words and Things - Larive and Fleury - 1895 Stock Vector

RFEW9CGC–Table of the Main Greek Ligatures, vintage engraved illustration. Dictionary of Words and Things - Larive and Fleury - 1895

. The natural history of plants. Botany. ULMAGEJE. 148 and in structure nearly like those of the Elm. The pentamerous perianth is imbricated, and they have five stamens superposed to the sepals, with filaments inflexed in the bud but which straighten themselves, often elastically, at the time of anthesis. The stamens are primarily introrse. The unilocular ovary encloses one descending campylotropous ovule and is surmounted by a style with two stigma- tiferous branches (fig. 95). The putamen encloses one seed the embryo of which is accompanied by a little mucous albumen and has two conduplioate Stock Photo

RMPG2WXY–. The natural history of plants. Botany. ULMAGEJE. 148 and in structure nearly like those of the Elm. The pentamerous perianth is imbricated, and they have five stamens superposed to the sepals, with filaments inflexed in the bud but which straighten themselves, often elastically, at the time of anthesis. The stamens are primarily introrse. The unilocular ovary encloses one descending campylotropous ovule and is surmounted by a style with two stigma- tiferous branches (fig. 95). The putamen encloses one seed the embryo of which is accompanied by a little mucous albumen and has two conduplioate

. Natural history object lessons : a manual for teachers. Fig. 65.—Pollen Grainswith. Tubes.. Fig. 66.—Tubes of Pollen Grains penetratingthe Tissue of the Stigma. active and grow. Each cell sends out a long slender tube,the pollen-tube, which slowly penetrates through the loosetissue of the stigma and through the style (when one ispresent) into the ovary. Into this pollen-tube the activevital fluid of the pollen-cell passes to the ovule, which thusbecomes fertilised. CHAPTER IX. FRUITS AND SEEDS. In the flower, as we have seen, the ovary, consisting of oneor more carpels, contains the oviiies. Stock Photo

RM2AG2PJ0–. Natural history object lessons : a manual for teachers. Fig. 65.—Pollen Grainswith. Tubes.. Fig. 66.—Tubes of Pollen Grains penetratingthe Tissue of the Stigma. active and grow. Each cell sends out a long slender tube,the pollen-tube, which slowly penetrates through the loosetissue of the stigma and through the style (when one ispresent) into the ovary. Into this pollen-tube the activevital fluid of the pollen-cell passes to the ovule, which thusbecomes fertilised. CHAPTER IX. FRUITS AND SEEDS. In the flower, as we have seen, the ovary, consisting of oneor more carpels, contains the oviiies.

RFEW9R43–Table of the Main Greek Ligatures, vintage engraved illustration. Dictionary of Words and Things - Larive and Fleury - 1895

. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. ONAGRARIEAE 45' which projects rather further from the flower, and bears a terminal capitate stigma. These three organs serve as alighting-rods, by which an insect must support itself while getting at the nectar, which is secreted in the base of the flower by a ring surrounding the beginning of the style. As the latter is somewhat lower and longer than the stamens, insect visitors mostly alight upon it, and will effect crossing if they are dusted with pollen Stock Photo

RMPG46R3–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. ONAGRARIEAE 45' which projects rather further from the flower, and bears a terminal capitate stigma. These three organs serve as alighting-rods, by which an insect must support itself while getting at the nectar, which is secreted in the base of the flower by a ring surrounding the beginning of the style. As the latter is somewhat lower and longer than the stamens, insect visitors mostly alight upon it, and will effect crossing if they are dusted with pollen

. Natural history object lessons : a manual for teachers. FIBRILS. Fig. 2.—Section of Flower. Fig. 1.—A Lypical Plant. 18 NATURAL HISTORY OBJECT LESSONS. The jiistil forms the centre of the flower. It consists ofthree parts, the Ovaky, or seed vessel at the bottom, con-taining the ovules or young seeds; the Style, or stalk; anda rounded or flattened head called the Stigma. These are all the parts which any flower has ; but manyflowers have not all these parts. Some have a single in-stead of a double floral envelope, others possess neither ;some stamens have no slender stalk, and some pistils h Stock Photo

RM2AG371H–. Natural history object lessons : a manual for teachers. FIBRILS. Fig. 2.—Section of Flower. Fig. 1.—A Lypical Plant. 18 NATURAL HISTORY OBJECT LESSONS. The jiistil forms the centre of the flower. It consists ofthree parts, the Ovaky, or seed vessel at the bottom, con-taining the ovules or young seeds; the Style, or stalk; anda rounded or flattened head called the Stigma. These are all the parts which any flower has ; but manyflowers have not all these parts. Some have a single in-stead of a double floral envelope, others possess neither ;some stamens have no slender stalk, and some pistils h

. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. BORAGINEAE 117 As ihe style is only mm. long, the stigma is below the simultaneously maturing anthers, which alternate with the projections in the throat of the corolla, and are situated just under them. The anthers dehisce introrsely, so that automatic self- pollination is easily effected by fall of pollen on the stigma. This species is very common on the high land of Helgoland, where fruits are always set, although insect-visits are very few, so that its Stock Photo

RMPG2959–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. BORAGINEAE 117 As ihe style is only mm. long, the stigma is below the simultaneously maturing anthers, which alternate with the projections in the throat of the corolla, and are situated just under them. The anthers dehisce introrsely, so that automatic self- pollination is easily effected by fall of pollen on the stigma. This species is very common on the high land of Helgoland, where fruits are always set, although insect-visits are very few, so that its

$The elements of botany for beginners and for schools . Fig. 283. Corolla of Morning Glory laid open, to show the five stamens insertedon it, near the base. Fig. 284. Style of a Ladys Slipper (Cypripedium), and stamens united with it;a, a, the anthers of the two good stamens; st, an abortive stamen, what shouldbe its anther changed into a petal-like body ; stig, the stigma. Fig. 285. Flower of Lobelia cardinalis. Cardinal flower; corolla making approachto the ligulate form; filaments {st) monadelphous, and anthers (.a), syngeaesious.. 100 STAMENS. [SECTION 9.. Pentade^kous (five brotherhoods), Stock Photo$

RM2AX2WR1–The elements of botany for beginners and for schools . Fig. 283. Corolla of Morning Glory laid open, to show the five stamens insertedon it, near the base. Fig. 284. Style of a Ladys Slipper (Cypripedium), and stamens united with it;a, a, the anthers of the two good stamens; st, an abortive stamen, what shouldbe its anther changed into a petal-like body ; stig, the stigma. Fig. 285. Flower of Lobelia cardinalis. Cardinal flower; corolla making approachto the ligulate form; filaments {st) monadelphous, and anthers (.a), syngeaesious.. 100 STAMENS. [SECTION 9.. Pentade^kous (five brotherhoods),

. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. 62 ORGANOGRAPHY. pressed downwards, and the pistil protrudes in consequence (Fig. 143, A). The stigma strikes the abdomen of the bee, and the style also brushes against it. When the bee visits the next flower, the stigma of that strikes the abdomen as before, but it has been dusted with pollen from the previous flower, and of course a portion of it is retained by the stigma, thereby eflfecting cross-fertiliza- Stock Photo

RMPG3RTJ–. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. 62 ORGANOGRAPHY. pressed downwards, and the pistil protrudes in consequence (Fig. 143, A). The stigma strikes the abdomen of the bee, and the style also brushes against it. When the bee visits the next flower, the stigma of that strikes the abdomen as before, but it has been dusted with pollen from the previous flower, and of course a portion of it is retained by the stigma, thereby eflfecting cross-fertiliza-

. Agriculture for southern schools. Fig. 4. — Flower ofMustard Fig. 5. — Details of partOF Mustard Flower center of this flower is a column, at the top of which is arounded knob (0, Fig. S). The whole central column iscalled the pistil. Its important parts are the ovule case,near the base, in which the seeds develop; and the stigma,or knob at the top. In some plants the stigma is dividedinto several parts. The surface of a full-grown stigma issticky or rough, so that pollen, which is the yellow dustof the flower, may stick to it. The ovule case, or ovary, 7 style Ovary^ ] 8 AGRICULTURE contain Stock Photo

RM2CEP2BD–. Agriculture for southern schools. Fig. 4. — Flower ofMustard Fig. 5. — Details of partOF Mustard Flower center of this flower is a column, at the top of which is arounded knob (0, Fig. S). The whole central column iscalled the pistil. Its important parts are the ovule case,near the base, in which the seeds develop; and the stigma,or knob at the top. In some plants the stigma is dividedinto several parts. The surface of a full-grown stigma issticky or rough, so that pollen, which is the yellow dustof the flower, may stick to it. The ovule case, or ovary, 7 style Ovary^ ] 8 AGRICULTURE contain

RMPG2NFD–. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. FORM AND STRUCTURE that a number of pistils are found entirely separate ; as a rule they grow together and the parts unite or coalesce. A single pistil consists of ovary, style and stigma. The Ovary is a hollow case which contains the ovules ; the Stig- ma is the upper part, usually flattened, which is covered by an adhesive secretion and which receives the pollen ; the Style connects the ovary and the stigma. It may be want- ing, the stigma is then said to be sessile. (Fig. 36.) The Ov

. The principles of botany, as exemplified in the phanerogamia. Botany; Botany; Phanerogams; 1854. FEETILIZATION. 167. see through their thin transparent walls the movements of the microscopical corpuscles which it contains. As soon as the poUenic tubes have been protruded from the pollen grain, they penetrate the loose cellular tissue which constitutes the mass of the stigma, known as the conducting tissue, and insinuating themselves amongst the interspaces of its cells where they find an abundance of moisture, they grow downwards through the central part of the style until they reach its bas Stock Photo

RMRDTRXJ–. The principles of botany, as exemplified in the phanerogamia. Botany; Botany; Phanerogams; 1854. FEETILIZATION. 167. see through their thin transparent walls the movements of the microscopical corpuscles which it contains. As soon as the poUenic tubes have been protruded from the pollen grain, they penetrate the loose cellular tissue which constitutes the mass of the stigma, known as the conducting tissue, and insinuating themselves amongst the interspaces of its cells where they find an abundance of moisture, they grow downwards through the central part of the style until they reach its bas

RMPG2X86–. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. FORM AND STRUCTURE that a number of pistils are found entirely separate ; as a rule they grow together and the parts unite or coalesce. A single pistil consists of ovary, style and stigma. The Ovary is a hollow case which contains the ovules ; the Stig- ma is the upper part, usually flattened, which is covered by an adhesive secretion and which receives the pollen ; the Style connects the ovary and the stigma. It may be want- ing, the stigma is then said to be sessile. (Fig. 36.) The Ov

. Elementary botany. Botany. 366 ECOLOGY. staminodium is so wrapped around the flattened style that the anther lies closely pressed against the face of the style, near the margin opposite that on which the stigma lies. 667- The walls of the anther locules which lie against the style become changed to a sticky substance for their entire" length, so that they cling firmly to the surface of the style and also to the mass of pollen within the locules. The result is that when the flower opens, and this staminodium unwraps itself from the embrace of the style, the mass of pollen is left there d Stock Photo

RMRE1MTG–. Elementary botany. Botany. 366 ECOLOGY. staminodium is so wrapped around the flattened style that the anther lies closely pressed against the face of the style, near the margin opposite that on which the stigma lies. 667- The walls of the anther locules which lie against the style become changed to a sticky substance for their entire" length, so that they cling firmly to the surface of the style and also to the mass of pollen within the locules. The result is that when the flower opens, and this staminodium unwraps itself from the embrace of the style, the mass of pollen is left there d

. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 240 ANGIOSPERMAE—DICOTYLEDONES the style being bent upwards the visitor first comes into contact with the stigmatic papillae. Later on the style straightens out, so that it applies itself to the under-side of the corolla. On creeping further into the flower, the insect is covered with fresh pollen, which it can no longer transfer to the stigma of the same flower. Morren, nevertheless, considered the flower mechanism self-pollinating, because he thought that Stock Photo

RMPG28H2–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 240 ANGIOSPERMAE—DICOTYLEDONES the style being bent upwards the visitor first comes into contact with the stigmatic papillae. Later on the style straightens out, so that it applies itself to the under-side of the corolla. On creeping further into the flower, the insect is covered with fresh pollen, which it can no longer transfer to the stigma of the same flower. Morren, nevertheless, considered the flower mechanism self-pollinating, because he thought that

. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 68 ANGIOSPERMAE—DICOTYLEDONES at the only two places where there are openings into the interior of the flower. The parts of the filaments projecting from the flower—together with the anthers—he close together, surrounding the stiff style with its stigma, and they themselves are covered with a hood formed by the fusion of the tips of the two inner petals. Some considerable time before the flower opens the anthers dehisce, discharging their pollen upon the lar Stock Photo

RMRDEY91–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 68 ANGIOSPERMAE—DICOTYLEDONES at the only two places where there are openings into the interior of the flower. The parts of the filaments projecting from the flower—together with the anthers—he close together, surrounding the stiff style with its stigma, and they themselves are covered with a hood formed by the fusion of the tips of the two inner petals. Some considerable time before the flower opens the anthers dehisce, discharging their pollen upon the lar

RMPG2947–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 68 ANGIOSPERMAE—DICOTYLEDONES at the only two places where there are openings into the interior of the flower. The parts of the filaments projecting from the flower—together with the anthers—he close together, surrounding the stiff style with its stigma, and they themselves are covered with a hood formed by the fusion of the tips of the two inner petals. Some considerable time before the flower opens the anthers dehisce, discharging their pollen upon the lar

RMRDDCH3–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. ONAGRARIEAE 45' which projects rather further from the flower, and bears a terminal capitate stigma. These three organs serve as alighting-rods, by which an insect must support itself while getting at the nectar, which is secreted in the base of the flower by a ring surrounding the beginning of the style. As the latter is somewhat lower and longer than the stamens, insect visitors mostly alight upon it, and will effect crossing if they are dusted with pollen

RMPG292K–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. BORAGINEAE 137. I'IG. 276- Litliospeymum arvense, L. (after Herm. Muller). (I) End of the style, taken from a bud (x 36). St, stigma. (2) Position of the reproductive organs in the flower. of the anthers, so that the entrance of the flower is completely filled, and the proboscis of an insect probing for nectar must force its way between anthers and stigma. If this takes place at the beginning of anthesis, and the proboscis has previously been dusted with po

RMRDJH4K–. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. 62 ORGANOGRAPHY. pressed downwards, and the pistil protrudes in consequence (Fig. 143, A). The stigma strikes the abdomen of the bee, and the style also brushes against it. When the bee visits the next flower, the stigma of that strikes the abdomen as before, but it has been dusted with pollen from the previous flower, and of course a portion of it is retained by the stigma, thereby eflfecting cross-fertiliza-

. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. LEGUMINOSAE 339 234. Phaseolus L. Nectar-yielding bee-flowers with a stylar brush. The spirally twisted end of the style, with the stigma and the pollen adhering to the brush, projects from the tip of the carina (which is also spirally twisted) when this is depressed, return- ing again when the pressure is removed. Delpino (' Ult. oss.,' p. 55) says that' in some species the style is twisted to the right, in others to the left, and that all intermediate stag Stock Photo

RMPG471H–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. LEGUMINOSAE 339 234. Phaseolus L. Nectar-yielding bee-flowers with a stylar brush. The spirally twisted end of the style, with the stigma and the pollen adhering to the brush, projects from the tip of the carina (which is also spirally twisted) when this is depressed, return- ing again when the pressure is removed. Delpino (' Ult. oss.,' p. 55) says that' in some species the style is twisted to the right, in others to the left, and that all intermediate stag

RMRDF88F–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 240 ANGIOSPERMAE—DICOTYLEDONES the style being bent upwards the visitor first comes into contact with the stigmatic papillae. Later on the style straightens out, so that it applies itself to the under-side of the corolla. On creeping further into the flower, the insect is covered with fresh pollen, which it can no longer transfer to the stigma of the same flower. Morren, nevertheless, considered the flower mechanism self-pollinating, because he thought that

RMPG3RW3–. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. flowers are the Gentians, Epilobium, Campanula, Parnassia, Lobelia, etc. The anthers in Lobelia are like those in the Sunflower family, that is, syngenesious, or united by their anthers forming a tube around the upper portion of the style. The pollen is discharged while the style is yet so short (Fig. 137) as to be concealed deep down in the tube. As the stigma approaches maturity, the style elongates and pushe

RMRDGTK3–. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. FORM AND STRUCTURE that a number of pistils are found entirely separate ; as a rule they grow together and the parts unite or coalesce. A single pistil consists of ovary, style and stigma. The Ovary is a hollow case which contains the ovules ; the Stig- ma is the upper part, usually flattened, which is covered by an adhesive secretion and which receives the pollen ; the Style connects the ovary and the stigma. It may be want- ing, the stigma is then said to be sessile. (Fig. 36.) The Ov

. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. CAPRIFOLIACEAE 535 pollination may take place by the fall of pollen on the stigma. Humble-bees are the only insects which regularly effect crossing, their behaviour being as above described. Hermann Miiller states that the honey-bee and flies sometimes do not touch the stigma at all. Kerner describes the flowers as protogynous, and says that the stigma is at first in the line of access to the nectar. The style subsequently bends downwards, and the anthers ta Stock Photo

RMPG46K8–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. CAPRIFOLIACEAE 535 pollination may take place by the fall of pollen on the stigma. Humble-bees are the only insects which regularly effect crossing, their behaviour being as above described. Hermann Miiller states that the honey-bee and flies sometimes do not touch the stigma at all. Kerner describes the flowers as protogynous, and says that the stigma is at first in the line of access to the nectar. The style subsequently bends downwards, and the anthers ta

RMRDEYA7–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. BORAGINEAE 117 As ihe style is only mm. long, the stigma is below the simultaneously maturing anthers, which alternate with the projections in the throat of the corolla, and are situated just under them. The anthers dehisce introrsely, so that automatic self- pollination is easily effected by fall of pollen on the stigma. This species is very common on the high land of Helgoland, where fruits are always set, although insect-visits are very few, so that its

. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. GENERAL STRUCTURE 273 stigma. Beneath the stigma there is an elongated and usually slender part called the style; the function of the style appears to be to get the stigma in a position which is favor- able for receiving pollen. Some pistils have no style, as in the water lily. (See Figure 108, page 287.) The base of the pistil is an enlarged part called the ovary or seed vessel. (Seed vessel is a preferable name for this structure for the reason that the Stock Photo

RMPG4137–. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. GENERAL STRUCTURE 273 stigma. Beneath the stigma there is an elongated and usually slender part called the style; the function of the style appears to be to get the stigma in a position which is favor- able for receiving pollen. Some pistils have no style, as in the water lily. (See Figure 108, page 287.) The base of the pistil is an enlarged part called the ovary or seed vessel. (Seed vessel is a preferable name for this structure for the reason that the

. A Manual of botany : being an introduction to the study of the structure, physiology, and classification of plants . Botany. ESSENTIAL OEGANSâTHE STIGMA. 249 stigma consists of loose cellular tissue, and secretes a viscid matter â which detains the pollen, and causes it to protrude tubes. This secreting portion is, strictly speaking, the true stigma, but the name is generally applied to all the divisions of the style on which the stigmatic apparatus is situated, as in Labiatse. The stigma alternates with the dissepiments of a syncarpous pistil, or, in other words, corresponds with the back o Stock Photo

RMRDGJ16–. A Manual of botany : being an introduction to the study of the structure, physiology, and classification of plants . Botany. ESSENTIAL OEGANSâTHE STIGMA. 249 stigma consists of loose cellular tissue, and secretes a viscid matter â which detains the pollen, and causes it to protrude tubes. This secreting portion is, strictly speaking, the true stigma, but the name is generally applied to all the divisions of the style on which the stigmatic apparatus is situated, as in Labiatse. The stigma alternates with the dissepiments of a syncarpous pistil, or, in other words, corresponds with the back o

. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. DESCENT OF THE POLLEN-TUBE. 431 pistil with a large number of ovules the stigmatic surface is large, as is also the amount of conductive tissue of the stj-ie through which the pollen-tubes are to descend. 1118. The conductive tissue through which the pollen-tube descends, and by which it is nourished, is formed at the stigma by a modification of epidermal ceUs, and below this arises from modifications in the parenchyma; in the style it may constitute a solid ma Stock Photo

RMPG3KYA–. Physiological botany; I. Outlines of the histology of phænogamous plants. II. Vegetable physiology. Plant physiology; Plant anatomy. DESCENT OF THE POLLEN-TUBE. 431 pistil with a large number of ovules the stigmatic surface is large, as is also the amount of conductive tissue of the stj-ie through which the pollen-tubes are to descend. 1118. The conductive tissue through which the pollen-tube descends, and by which it is nourished, is formed at the stigma by a modification of epidermal ceUs, and below this arises from modifications in the parenchyma; in the style it may constitute a solid ma

RMRDFXR3–. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. FORM AND STRUCTURE that a number of pistils are found entirely separate ; as a rule they grow together and the parts unite or coalesce. A single pistil consists of ovary, style and stigma. The Ovary is a hollow case which contains the ovules ; the Stig- ma is the upper part, usually flattened, which is covered by an adhesive secretion and which receives the pollen ; the Style connects the ovary and the stigma. It may be want- ing, the stigma is then said to be sessile. (Fig. 36.) The Ov

RMPG4721–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. LEGUMINOSAE 323 flower mechanism as similar to that of V. Cracca, except as regards the nature of the brush arrangement. For here the style (2^ mm. long) bears two brushes, immediately beneath the stigma. They are completely separate, about 1 mm. long, and respectively situated internally and externally. The inner brush consists of a single row of short hairs slanting upwards, while the outer one is composed of hairs which radiate obliquely upwards towards t

RMRDCY7G–. Our native trees and how to identify them : a popular study of their habits and their peculiarities . Trees. FORM AND STRUCTURE that a number of pistils are found entirely separate ; as a rule they grow together and the parts unite or coalesce. A single pistil consists of ovary, style and stigma. The Ovary is a hollow case which contains the ovules ; the Stig- ma is the upper part, usually flattened, which is covered by an adhesive secretion and which receives the pollen ; the Style connects the ovary and the stigma. It may be want- ing, the stigma is then said to be sessile. (Fig. 36.) The

. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. FLOWERS 61 that the topmost part of pistils is a part well suited to catch and hold pollen. This part is called the stigma. In syringa, as you1 can see, the stigma consists of four branches. That part of the pistil which connects the stigma with the ovary is the style. Many flowers do not have all the parts which have just been described, but in most of the flowers with which you are familiar you will find them. In order to understand descrip- tions of flo Stock Photo

RMPG3T3Y–. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. FLOWERS 61 that the topmost part of pistils is a part well suited to catch and hold pollen. This part is called the stigma. In syringa, as you1 can see, the stigma consists of four branches. That part of the pistil which connects the stigma with the ovary is the style. Many flowers do not have all the parts which have just been described, but in most of the flowers with which you are familiar you will find them. In order to understand descrip- tions of flo

RMRE1N1P–. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. 62 OBOANOOBAPSr. pressed downwards, and the pistil protrudes in consequence (Fig. 143, A). The stigma strikes the abdomen of the bee, and the style also brushes against it. When the bee visits the next flower, the stigma of that strikes the abdomen as )y before, but it has been dusted ' with pollen from the previous flower, and of course a portion of it is retained by the stigma, thereby efiecting cross-fertili

. Class-book of botany : being outlines of the structure, physiology, and classification of plants ; with a flora of the United States and Canada . Botany; Botany; Botany. THE PISTILS, OR GYNCECIUM. 103 515. The parts of a simple pistil are three, the ovary at base, the ftigma at the summit, and the style, intervening. Like the filament the style is not essential, and when it is wanting, the stigma is sessile upon the ovary, as in crowfoot. In order to understand the relation of those parts we must needs first study 516. The morphology op the pistil. As before stated, (Â§ 380), the pistil cons Stock Photo

RMPG2EDG–. Class-book of botany : being outlines of the structure, physiology, and classification of plants ; with a flora of the United States and Canada . Botany; Botany; Botany. THE PISTILS, OR GYNCECIUM. 103 515. The parts of a simple pistil are three, the ovary at base, the ftigma at the summit, and the style, intervening. Like the filament the style is not essential, and when it is wanting, the stigma is sessile upon the ovary, as in crowfoot. In order to understand the relation of those parts we must needs first study 516. The morphology op the pistil. As before stated, (Â§ 380), the pistil cons

RMRDGTT2–. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. FORM AND STRUCTURE that a number of pistils are found entirely separate ; as a rule they grow together and the parts unite or coalesce. A single pistil consists of ovary, style and stigma. The Ovary is a hollow case which contains the ovules ; the Stig- ma is the upper part, usually flattened, which is covered by an adhesive secretion and which receives the pollen ; the Style connects the ovary and the stigma. It may be want- ing, the stigma is then said to be sessile. (Fig. 36.) The Ov

RMPG2X9R–. Our native trees and how to identify them; a popular study of their habits and their peculiarities. Trees. FORM AND STRUCTURE that a number of pistils are found entirely separate ; as a rule they grow together and the parts unite or coalesce. A single pistil consi-sts of ovary, style and stigma. I'he Ovary is a hollow case which contains the ovules ; the Stig- ma is the upper part, usually flattened, which is covered by an adhesive secretion and which receives the pollen ; the Style connects the ovary and the stigma. It may be want- ing, the stigma is then said to be sessile. (Fig- 36.) The

RMRDEYMX–. Handbook of flower pollination : based upon Hermann MuÌller's work 'The fertilisation of flowers by insects' . Fertilization of plants. ERICACEAE 53 stigma, upon which are damp glistening spots (considered as nectar by Ricca), that visitors lick, at the same time depositing any pollen adhering to their proboscis. Finding no nectar they climb up the style, attracted by the orange-yellow horns of the anthers, and busy themselves with the pollen, so that the proboscis is again dusted. Crossing is therefore easily effected by insects, but Hermann Miiller says that the projecting position of the

. The natural history of plants. Botany. LEGTJMINOBM-OMSALPimH^. 91 five large nearly equal alternating petals, also imbricate in the bud. The stamens, ten in number, have their filaments inflexed in the bud; and hence the anthers are contained in the concavity of the recep- tacle. The ovary is central and multiovulate, surmounted by a style, which is at first involute and is dilated above into a peltate stigma. Thus, the flowers of this plant in all respects resemble those of Thy- lacanthus ferrugineus; but the peculiar character of Bicymhe lies in the lateral bractlets enveloping the flower, Stock Photo

RMPG2X93–. The natural history of plants. Botany. LEGTJMINOBM-OMSALPimH^. 91 five large nearly equal alternating petals, also imbricate in the bud. The stamens, ten in number, have their filaments inflexed in the bud; and hence the anthers are contained in the concavity of the recep- tacle. The ovary is central and multiovulate, surmounted by a style, which is at first involute and is dilated above into a peltate stigma. Thus, the flowers of this plant in all respects resemble those of Thy- lacanthus ferrugineus; but the peculiar character of Bicymhe lies in the lateral bractlets enveloping the flower,

RMRDGCRR–. The natural history of plants. Botany. ULMAGEJE. 148 and in structure nearly like those of the Elm. The pentamerous perianth is imbricated, and they have five stamens superposed to the sepals, with filaments inflexed in the bud but which straighten themselves, often elastically, at the time of anthesis. The stamens are primarily introrse. The unilocular ovary encloses one descending campylotropous ovule and is surmounted by a style with two stigma- tiferous branches (fig. 95). The putamen encloses one seed the embryo of which is accompanied by a little mucous albumen and has two conduplioate

. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 376 A NGIOSPERMAE—DICO TYLEDONES flowering, secretes a thin layer of nectar that gives a yellowish appearance to the whole inflorescence. The stamens and pistil are rarely developed normally: either the stamens are developed, while the style remains so short that the stigma hardly projects beyond the nectary, or the style is long, and 1-3 or all four of the stamens are reduced. Automatic self-pollination is therefore rendered very difficult. Kerner, however, Stock Photo

RMPG470D–. Handbook of flower pollination : based upon Hermann Mu?ller's work 'The fertilisation of flowers by insects' . Fertilization of plants. 376 A NGIOSPERMAE—DICO TYLEDONES flowering, secretes a thin layer of nectar that gives a yellowish appearance to the whole inflorescence. The stamens and pistil are rarely developed normally: either the stamens are developed, while the style remains so short that the stigma hardly projects beyond the nectary, or the style is long, and 1-3 or all four of the stamens are reduced. Automatic self-pollination is therefore rendered very difficult. Kerner, however,

. The principles of botany, as exemplified in the phanerogamia. Botany; Botany; Phanerogams; 1854. 150 COMPOUND ORGANS OF PLANTS. occupied by a green leaf, somewhat folded together, and similar to the leaves of the branches, except in its lesser size. If we compare this leaf, with the perfect pistil of the cherry, we shall see that the folded lamina answers to the ovary, the midrib projecting beyond the ovary to the style, and its slightly dilated apex to the stigma. The analogy of carpels to leaves may also be deduced from their similarity in texture and venation, and from the situation of th Stock Photo

RMRDTRYD–. The principles of botany, as exemplified in the phanerogamia. Botany; Botany; Phanerogams; 1854. 150 COMPOUND ORGANS OF PLANTS. occupied by a green leaf, somewhat folded together, and similar to the leaves of the branches, except in its lesser size. If we compare this leaf, with the perfect pistil of the cherry, we shall see that the folded lamina answers to the ovary, the midrib projecting beyond the ovary to the style, and its slightly dilated apex to the stigma. The analogy of carpels to leaves may also be deduced from their similarity in texture and venation, and from the situation of th

. The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. DISPERSAL BY WIND. 857 the style (with nut suspended below) slides out of the hole, around which the perianth-lobes are connate, until its further progress is arrested by the button-like. Fig. 471.—Dispersion of fruits and seeds by the wind. 1 Senecio vulgaris. 2 Adeiiium Eonghel. » Valeriana tripteris. * TypJia Schuttlewortkii. 6 JSriophoruTn angustifolium. « Cynamchumfuscaturn. ' Micromeria nervosa. » and » Taraxacum oficitiale. lo Salix JHyrsinites. stigma. The perianth here forms a beautiful para Stock Photo

RMPG2M88–. The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. DISPERSAL BY WIND. 857 the style (with nut suspended below) slides out of the hole, around which the perianth-lobes are connate, until its further progress is arrested by the button-like. Fig. 471.—Dispersion of fruits and seeds by the wind. 1 Senecio vulgaris. 2 Adeiiium Eonghel. » Valeriana tripteris. * TypJia Schuttlewortkii. 6 JSriophoruTn angustifolium. « Cynamchumfuscaturn. ' Micromeria nervosa. » and » Taraxacum oficitiale. lo Salix JHyrsinites. stigma. The perianth here forms a beautiful para

. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. THE FLOWER 213. matic surface. It remains in this position till the anthers have shed their pollen, then, as may be seen by examining an older flower, the style begins to elongate, pushing up the pollen that has fallen on the hairy outside of the closed stigma, and forcing it out of the corolla tube, where it can be scattered by insects among the other flowers of the cluster. When the pollen of its own floret has been thus disposed of, the stigma lobes open and curl outwar Stock Photo

RMRE39HJ–. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. THE FLOWER 213. matic surface. It remains in this position till the anthers have shed their pollen, then, as may be seen by examining an older flower, the style begins to elongate, pushing up the pollen that has fallen on the hairy outside of the closed stigma, and forcing it out of the corolla tube, where it can be scattered by insects among the other flowers of the cluster. When the pollen of its own floret has been thus disposed of, the stigma lobes open and curl outwar

. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. MORE ABOUT POLLINATION 3°3 pollinated plants the pollen simply falls on the stigma; grav- ity is the agent of transfer. In others, as in the fireweed (Epilo- bium), the style turns as it grows so that it rubs against the an- thers. There are some plants whose cross-pollination is accom- plished by means of water. (Study Figure 126.) Snails, where they are very abundant, have been observed to act as pollinators. b. As to the Stigma Pollinated. — For some re Stock Photo

RMPG40YF–. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. MORE ABOUT POLLINATION 3°3 pollinated plants the pollen simply falls on the stigma; grav- ity is the agent of transfer. In others, as in the fireweed (Epilo- bium), the style turns as it grows so that it rubs against the an- thers. There are some plants whose cross-pollination is accom- plished by means of water. (Study Figure 126.) Snails, where they are very abundant, have been observed to act as pollinators. b. As to the Stigma Pollinated. — For some re

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