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Diploid sporophyte Stock Photos and Images
Dicranum moss showing mature sporophyte growing up out of the haploid gametophytes Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-dicranum-moss-showing-mature-sporophyte-growing-up-out-of-the-haploid-14168190.htmlRMAGCHWK–Dicranum moss showing mature sporophyte growing up out of the haploid gametophytes
Haploid diploid stages Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/haploid-diploid-stages-image434328891.htmlRF2G6HAX3–Haploid diploid stages
Fern plant in sporophyte phase. Nature background. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-image-fern-plant-in-sporophyte-phase-nature-background-160855073.htmlRFK9KG81–Fern plant in sporophyte phase. Nature background.
Life Cycle of a Fern The life cycle of the fern has two different stages; sporophyte, which releases spores, and gametophyte, which releases gametes Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/life-cycle-of-a-fern-the-life-cycle-of-the-fern-has-two-different-stages-sporophyte-which-releases-spores-and-gametophyte-which-releases-gametes-image434328803.htmlRF2G6HAPY–Life Cycle of a Fern The life cycle of the fern has two different stages; sporophyte, which releases spores, and gametophyte, which releases gametes
Macro shot of green moss (Hypnum cupressiforme) with capsules (sporangium) containing spores. It is a bioindicator for environmental pollution Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/macro-shot-of-green-moss-hypnum-cupressiforme-with-capsules-sporangium-containing-spores-it-is-a-bioindicator-for-environmental-pollution-image345866892.htmlRF2B2KGN0–Macro shot of green moss (Hypnum cupressiforme) with capsules (sporangium) containing spores. It is a bioindicator for environmental pollution
Diagram of life cycle of flowering plant with double fertilization Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/diagram-of-life-cycle-of-flowering-plant-with-double-fertilization-image434328799.htmlRF2G6HAPR–Diagram of life cycle of flowering plant with double fertilization
Female cycad sago palm, Cycas revoluta, also known as king sago and japanese sago palm Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/female-cycad-sago-palm-cycas-revoluta-also-known-as-king-sago-and-japanese-sago-palm-image340642156.htmlRF2AP5GF8–Female cycad sago palm, Cycas revoluta, also known as king sago and japanese sago palm
Fiddle head fern in Volcano National Park, Big Island Hawaii. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-fiddle-head-fern-in-volcano-national-park-big-island-hawaii-21394552.htmlRMB6PGY4–Fiddle head fern in Volcano National Park, Big Island Hawaii.
Cladophora is a genus of reticulated filamentous Ulvophyceae (green algae) Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/cladophora-is-a-genus-of-reticulated-filamentous-ulvophyceae-green-algae-image431891046.htmlRF2G2J9C6–Cladophora is a genus of reticulated filamentous Ulvophyceae (green algae)
Fern Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/fern-image6363653.htmlRMA4XAT6–Fern
Flowering plant life cycle Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/flowering-plant-life-cycle-image434329518.htmlRF2G6HBME–Flowering plant life cycle
Microscope view of Fern Sporophyte Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/microscope-view-of-fern-sporophyte-image363639255.htmlRM2C3H5G7–Microscope view of Fern Sporophyte
Harts tongue fern colonising hand made brick made from Kentish wealden clay Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-harts-tongue-fern-colonising-hand-made-brick-made-from-kentish-wealden-33484059.htmlRMBXD977–Harts tongue fern colonising hand made brick made from Kentish wealden clay
. Botany of the living plant. Botany. MUSCI AND HEPATICAE 369 out. In any organism with a life-cycle punctuated by the two stages of the spore and the zygote, there are two possibilities of somatic expan- sion, viz. in the diploid sporophyte and in the haploid gametophyte. In the Bryophytes the second alternative has been fully exploited. Their characters depend upon the de'elopment of the gametophyte to the highest condition in which it is seen in Land Vegetation. The details of this development run parallel with those of the sporophyte in Vascular Plants, so that the two present a series of Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-musci-and-hepaticae-369-out-in-any-organism-with-a-life-cycle-punctuated-by-the-two-stages-of-the-spore-and-the-zygote-there-are-two-possibilities-of-somatic-expan-sion-viz-in-the-diploid-sporophyte-and-in-the-haploid-gametophyte-in-the-bryophytes-the-second-alternative-has-been-fully-exploited-their-characters-depend-upon-the-deelopment-of-the-gametophyte-to-the-highest-condition-in-which-it-is-seen-in-land-vegetation-the-details-of-this-development-run-parallel-with-those-of-the-sporophyte-in-vascular-plants-so-that-the-two-present-a-series-of-image232323130.htmlRMRDY6EJ–. Botany of the living plant. Botany. MUSCI AND HEPATICAE 369 out. In any organism with a life-cycle punctuated by the two stages of the spore and the zygote, there are two possibilities of somatic expan- sion, viz. in the diploid sporophyte and in the haploid gametophyte. In the Bryophytes the second alternative has been fully exploited. Their characters depend upon the de'elopment of the gametophyte to the highest condition in which it is seen in Land Vegetation. The details of this development run parallel with those of the sporophyte in Vascular Plants, so that the two present a series of
. Heredity and evolution in plants. Heredity; Plants. FUNDAMENTAL PRINCIPLES 35 The fact of a cycle in the hfe history is brought out clearly in the following diagram:. Fig. 29.—Diagram of life-cycle of a fern. 27. Reduction.—Since the sporophyte (descended from the diploid oosperm) has cells of a double nature, resulting from fertilization, and since the spores which give rise to the gametophyte are of a single (or haploid) nature, there must occur, at some stage in the life of the sporo- phyte, a process of reduction, restoring the cells, made diploid by fertilization, to the haploid conditi Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/heredity-and-evolution-in-plants-heredity-plants-fundamental-principles-35-the-fact-of-a-cycle-in-the-hfe-history-is-brought-out-clearly-in-the-following-diagram-fig-29diagram-of-life-cycle-of-a-fern-27-reductionsince-the-sporophyte-descended-from-the-diploid-oosperm-has-cells-of-a-double-nature-resulting-from-fertilization-and-since-the-spores-which-give-rise-to-the-gametophyte-are-of-a-single-or-haploid-nature-there-must-occur-at-some-stage-in-the-life-of-the-sporo-phyte-a-process-of-reduction-restoring-the-cells-made-diploid-by-fertilization-to-the-haploid-conditi-image216421368.htmlRMPG2RJG–. Heredity and evolution in plants. Heredity; Plants. FUNDAMENTAL PRINCIPLES 35 The fact of a cycle in the hfe history is brought out clearly in the following diagram:. Fig. 29.—Diagram of life-cycle of a fern. 27. Reduction.—Since the sporophyte (descended from the diploid oosperm) has cells of a double nature, resulting from fertilization, and since the spores which give rise to the gametophyte are of a single (or haploid) nature, there must occur, at some stage in the life of the sporo- phyte, a process of reduction, restoring the cells, made diploid by fertilization, to the haploid conditi
Dicranum moss showing mature sporophyte growing up out of the haploid gametophytes Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-dicranum-moss-showing-mature-sporophyte-growing-up-out-of-the-haploid-14168193.htmlRMAGCHWP–Dicranum moss showing mature sporophyte growing up out of the haploid gametophytes
Fern plant in sporophyte phase. Nature background. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-image-fern-plant-in-sporophyte-phase-nature-background-160817421.htmlRFK9HT79–Fern plant in sporophyte phase. Nature background.
Colorful fern leaf in Volcano National Park, Big Island Hawaii. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-colorful-fern-leaf-in-volcano-national-park-big-island-hawaii-21394466.htmlRMB6PGT2–Colorful fern leaf in Volcano National Park, Big Island Hawaii.
Microscope view of Fern Sporophyte Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/microscope-view-of-fern-sporophyte-image363639256.htmlRM2C3H5G8–Microscope view of Fern Sporophyte
. Botany of the living plant. Botany. MUSCI AND HEPATICAE 369 out. In any organism with a life-cycle punctuated by the two stages of the spore and the zygote, there are two possibilities of somatic cxpau sion, viz. in the diploid sporophyte and in the haploid gamctophylo. In the Bryophytes the second alternative has been fully exploited Their characters depend upon the development of the gamotophyt<! to the highest condition in which it is seen in Land Vegetation. The details of this development run parallel with those of the sporophyte in Vascular Plants, so that the two present a scries o Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-musci-and-hepaticae-369-out-in-any-organism-with-a-life-cycle-punctuated-by-the-two-stages-of-the-spore-and-the-zygote-there-are-two-possibilities-of-somatic-cxpau-sion-viz-in-the-diploid-sporophyte-and-in-the-haploid-gamctophylo-in-the-bryophytes-the-second-alternative-has-been-fully-exploited-their-characters-depend-upon-the-development-of-the-gamotophytlt!-to-the-highest-condition-in-which-it-is-seen-in-land-vegetation-the-details-of-this-development-run-parallel-with-those-of-the-sporophyte-in-vascular-plants-so-that-the-two-present-a-scries-o-image234290798.htmlRMRH4T8E–. Botany of the living plant. Botany. MUSCI AND HEPATICAE 369 out. In any organism with a life-cycle punctuated by the two stages of the spore and the zygote, there are two possibilities of somatic cxpau sion, viz. in the diploid sporophyte and in the haploid gamctophylo. In the Bryophytes the second alternative has been fully exploited Their characters depend upon the development of the gamotophyt<! to the highest condition in which it is seen in Land Vegetation. The details of this development run parallel with those of the sporophyte in Vascular Plants, so that the two present a scries o
Dicranum moss showing mature sporophytes growing up out of the haploid gametophytes Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-dicranum-moss-showing-mature-sporophytes-growing-up-out-of-the-haploid-14168182.htmlRMAGCHTR–Dicranum moss showing mature sporophytes growing up out of the haploid gametophytes
Moss sporophytes Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-moss-sporophytes-13552183.htmlRMAE34FM–Moss sporophytes
Fern plant in sporophyte phase. Nature background. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-image-fern-plant-in-sporophyte-phase-nature-background-160818496.htmlRFK9HWHM–Fern plant in sporophyte phase. Nature background.
Group of fern leaves in Volcano National Park, Big Island Hawaii. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-group-of-fern-leaves-in-volcano-national-park-big-island-hawaii-21394684.htmlRMB6PH3T–Group of fern leaves in Volcano National Park, Big Island Hawaii.
Microscope view of Fern Sporophyte Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/microscope-view-of-fern-sporophyte-image363639304.htmlRM2C3H5J0–Microscope view of Fern Sporophyte
![. Botany of the living plant. Botany; Plants. INTRODUCTORY TO LAND-VEGETATION 457 by reduction the original number of the chromosomes is restored. The cycle may be represented diagrammatically by Fig. 351, and the two phases, the haploid (" X ") and the diploid (" 2X ") constitute the alternating " generations.'' They appear as the gametophyte and the sporophyte respectively. These " generations " may bear varying proportions one to the other, that which is the more prominent and obvious being referred to in popular phraseology as " the plant." But Stock Photo](https://c8.alamy.com/comp/RH803F/botany-of-the-living-plant-botany-plants-introductory-to-land-vegetation-457-by-reduction-the-original-number-of-the-chromosomes-is-restored-the-cycle-may-be-represented-diagrammatically-by-fig-351-and-the-two-phases-the-haploid-quot-x-quot-and-the-diploid-quot-2x-quot-constitute-the-alternating-quot-generations-they-appear-as-the-gametophyte-and-the-sporophyte-respectively-these-quot-generations-quot-may-bear-varying-proportions-one-to-the-other-that-which-is-the-more-prominent-and-obvious-being-referred-to-in-popular-phraseology-as-quot-the-plantquot-but-RH803F.jpg ". Botany of the living plant. Botany; Plants. INTRODUCTORY TO LAND-VEGETATION 457 by reduction the original number of the chromosomes is restored. The cycle may be represented diagrammatically by Fig. 351, and the two phases, the haploid (" X ") and the diploid (" 2X ") constitute the alternating " generations.'' They appear as the gametophyte and the sporophyte respectively. These " generations " may bear varying proportions one to the other, that which is the more prominent and obvious being referred to in popular phraseology as " the plant." But Stock Photo")
. Botany of the living plant. Botany; Plants. INTRODUCTORY TO LAND-VEGETATION 457 by reduction the original number of the chromosomes is restored. The cycle may be represented diagrammatically by Fig. 351, and the two phases, the haploid (" X ") and the diploid (" 2X ") constitute the alternating " generations.'' They appear as the gametophyte and the sporophyte respectively. These " generations " may bear varying proportions one to the other, that which is the more prominent and obvious being referred to in popular phraseology as " the plant." But Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-plants-introductory-to-land-vegetation-457-by-reduction-the-original-number-of-the-chromosomes-is-restored-the-cycle-may-be-represented-diagrammatically-by-fig-351-and-the-two-phases-the-haploid-quot-x-quot-and-the-diploid-quot-2x-quot-constitute-the-alternating-quot-generations-they-appear-as-the-gametophyte-and-the-sporophyte-respectively-these-quot-generations-quot-may-bear-varying-proportions-one-to-the-other-that-which-is-the-more-prominent-and-obvious-being-referred-to-in-popular-phraseology-as-quot-the-plantquot-but-image234359651.htmlRMRH803F–. Botany of the living plant. Botany; Plants. INTRODUCTORY TO LAND-VEGETATION 457 by reduction the original number of the chromosomes is restored. The cycle may be represented diagrammatically by Fig. 351, and the two phases, the haploid (" X ") and the diploid (" 2X ") constitute the alternating " generations.'' They appear as the gametophyte and the sporophyte respectively. These " generations " may bear varying proportions one to the other, that which is the more prominent and obvious being referred to in popular phraseology as " the plant." But
Fern plant in sporophyte phase. Nature background. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-image-fern-plant-in-sporophyte-phase-nature-background-160850952.htmlRFK9KB0T–Fern plant in sporophyte phase. Nature background.
Colorful fern leaf in Volcano National Park, Big Island Hawaii. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-colorful-fern-leaf-in-volcano-national-park-big-island-hawaii-21394282.htmlRMB6PGHE–Colorful fern leaf in Volcano National Park, Big Island Hawaii.
. Botany of the living plant. Botany; Plants. VeCPsop', Sporophyte, (Diploid) Microspore. Mecaspore.. CoNTOrrsOr Embryo-Sac (Haploid) CONTENTS Of Pollen-grain-tube Fig. 257.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Bower, F. O. (Frederick Orpen), 1855-1948; Wardlaw, C. W. (Claude Wilson), 1901-. London, Macmillan and Co. , ltd. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-plants-vecpsop-sporophyte-diploid-microspore-mecaspore-contorrsor-embryo-sac-haploid-contents-of-pollen-grain-tube-fig-257-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-bower-f-o-frederick-orpen-1855-1948-wardlaw-c-w-claude-wilson-1901-london-macmillan-and-co-ltd-image234370672.htmlRMRH8E54–. Botany of the living plant. Botany; Plants. VeCPsop', Sporophyte, (Diploid) Microspore. Mecaspore.. CoNTOrrsOr Embryo-Sac (Haploid) CONTENTS Of Pollen-grain-tube Fig. 257.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Bower, F. O. (Frederick Orpen), 1855-1948; Wardlaw, C. W. (Claude Wilson), 1901-. London, Macmillan and Co. , ltd.
Colorful fern leaf in Volcano National Park, Big Island Hawaii. Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-colorful-fern-leaf-in-volcano-national-park-big-island-hawaii-21394355.htmlRMB6PGM3–Colorful fern leaf in Volcano National Park, Big Island Hawaii.
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. SPOROPHYTE (2n generation) uredospore secidiosppre intercalary cell GAMETOPHYTE (w generation). '^spermatium i gamete ¥ gametes fusion-cell The n generation is that in which the nucleus has the haploid number of chromosomes or, if there are no distinct chromosomes visible, the single amount of chromatin; in the 2?? generation each cell has the double (diploid) number of chromosomes or the double amount of chromatin, at first sur- rounded by two nuclear membranes, afterwards by one.. Please note that these image Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-british-rust-fungi-uredinales-their-biology-and-classification-rust-fungi-sporophyte-2n-generation-uredospore-secidiosppre-intercalary-cell-gametophyte-w-generation-spermatium-i-gamete-gametes-fusion-cell-the-n-generation-is-that-in-which-the-nucleus-has-the-haploid-number-of-chromosomes-or-if-there-are-no-distinct-chromosomes-visible-the-single-amount-of-chromatin-in-the-2-generation-each-cell-has-the-double-diploid-number-of-chromosomes-or-the-double-amount-of-chromatin-at-first-sur-rounded-by-two-nuclear-membranes-afterwards-by-one-please-note-that-these-image-image232412434.htmlRMRE38C2–. The British rust fungi (Uredinales) their biology and classification. Rust fungi. SPOROPHYTE (2n generation) uredospore secidiosppre intercalary cell GAMETOPHYTE (w generation). '^spermatium i gamete ¥ gametes fusion-cell The n generation is that in which the nucleus has the haploid number of chromosomes or, if there are no distinct chromosomes visible, the single amount of chromatin; in the 2?? generation each cell has the double (diploid) number of chromosomes or the double amount of chromatin, at first sur- rounded by two nuclear membranes, afterwards by one.. Please note that these image
. Botany of the living plant. Botany; Plants. 4/0 BOTANY OF THE LIVING PLANT may be found, providing for ventilation (Fig. 364, St.). But such tissues dry up at maturity, so that the capsule is then full of the yellowish dusty spores. The sporophyte thus constructed is dependent throughout its existence upon the gametophyte : it bears no appendages, and normally it never branches. The spores all originate from one continuous spore-sac contained in the capsule. These features are common for the Bryophyta, and mark a simpler grade of evolution of the diploid generation than is seen in the Pterid Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-plants-40-botany-of-the-living-plant-may-be-found-providing-for-ventilation-fig-364-st-but-such-tissues-dry-up-at-maturity-so-that-the-capsule-is-then-full-of-the-yellowish-dusty-spores-the-sporophyte-thus-constructed-is-dependent-throughout-its-existence-upon-the-gametophyte-it-bears-no-appendages-and-normally-it-never-branches-the-spores-all-originate-from-one-continuous-spore-sac-contained-in-the-capsule-these-features-are-common-for-the-bryophyta-and-mark-a-simpler-grade-of-evolution-of-the-diploid-generation-than-is-seen-in-the-pterid-image234359583.htmlRMRH8013–. Botany of the living plant. Botany; Plants. 4/0 BOTANY OF THE LIVING PLANT may be found, providing for ventilation (Fig. 364, St.). But such tissues dry up at maturity, so that the capsule is then full of the yellowish dusty spores. The sporophyte thus constructed is dependent throughout its existence upon the gametophyte : it bears no appendages, and normally it never branches. The spores all originate from one continuous spore-sac contained in the capsule. These features are common for the Bryophyta, and mark a simpler grade of evolution of the diploid generation than is seen in the Pterid
. The British rust fungi (Uredinales), their biology and classification. Uredineae. SPOROPHYTE {2n generation) uredospore^ fecidiospore intercalar}' cell GAMETOPHYTE (n generation). spermatium <? gamete ? gametes fasion-cell The 7i generation is that in which the nucleus has the haploid number of chromosomes or, if there are no distinct chromosomes visible, the single amount of chromatin; in the 2?? generation each cell has the double (diploid) number of chromosomes or the double amount of chromatin, at first sur- rounded by two nuclear membranes, afterwards by one.. Please note that these Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-british-rust-fungi-uredinales-their-biology-and-classification-uredineae-sporophyte-2n-generation-uredospore-fecidiospore-intercalar-cell-gametophyte-n-generation-spermatium-lt-gamete-gametes-fasion-cell-the-7i-generation-is-that-in-which-the-nucleus-has-the-haploid-number-of-chromosomes-or-if-there-are-no-distinct-chromosomes-visible-the-single-amount-of-chromatin-in-the-2-generation-each-cell-has-the-double-diploid-number-of-chromosomes-or-the-double-amount-of-chromatin-at-first-sur-rounded-by-two-nuclear-membranes-afterwards-by-one-please-note-that-these-image234220336.htmlRMRH1JC0–. The British rust fungi (Uredinales), their biology and classification. Uredineae. SPOROPHYTE {2n generation) uredospore^ fecidiospore intercalar}' cell GAMETOPHYTE (n generation). spermatium <? gamete ? gametes fasion-cell The 7i generation is that in which the nucleus has the haploid number of chromosomes or, if there are no distinct chromosomes visible, the single amount of chromatin; in the 2?? generation each cell has the double (diploid) number of chromosomes or the double amount of chromatin, at first sur- rounded by two nuclear membranes, afterwards by one.. Please note that these
. Botany of the living plant. Botany. LYCOPODIALES 323 It will be noted that there is no interruption of the development by a period of rest, as in the matured seeds of ^'lowering Plants. The life-cycle of Selaginella, though it does not involve the formation of a seed, or include any dormant period, corresponds in its essentials to that in Flowering Plants, In both cases the plant itself is the diploid, or sporophyte generation. The events may be compared, starting from the production of the spore. The fact that the pollen- sac and ovule of seed-bearing plants differ in form and position from Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-lycopodiales-323-it-will-be-noted-that-there-is-no-interruption-of-the-development-by-a-period-of-rest-as-in-the-matured-seeds-of-lowering-plants-the-life-cycle-of-selaginella-though-it-does-not-involve-the-formation-of-a-seed-or-include-any-dormant-period-corresponds-in-its-essentials-to-that-in-flowering-plants-in-both-cases-the-plant-itself-is-the-diploid-or-sporophyte-generation-the-events-may-be-compared-starting-from-the-production-of-the-spore-the-fact-that-the-pollen-sac-and-ovule-of-seed-bearing-plants-differ-in-form-and-position-from-image232323808.htmlRMRDY7AT–. Botany of the living plant. Botany. LYCOPODIALES 323 It will be noted that there is no interruption of the development by a period of rest, as in the matured seeds of ^'lowering Plants. The life-cycle of Selaginella, though it does not involve the formation of a seed, or include any dormant period, corresponds in its essentials to that in Flowering Plants, In both cases the plant itself is the diploid, or sporophyte generation. The events may be compared, starting from the production of the spore. The fact that the pollen- sac and ovule of seed-bearing plants differ in form and position from
![. The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. 52 ALTERNATING GENERATIONS one generation and forms the starting-point for the next generation : the older usage based upon this obvious fact is, therefore, to be preferred, and the spore may be still held to be the obvious boundary between the two generations. The gametophyte, or haploid phase, will then be recognised as extending from the spore to the zygote in each cycle, and it shows " n" chromosomes normally in all its nuclear divisions: the sporophyte, or diploid phase, is recognised a Stock Photo](https://c8.alamy.com/comp/RDXH0P/the-origin-of-a-land-flora-a-theory-based-upon-the-facts-of-alternation-plant-morphology-52-alternating-generations-one-generation-and-forms-the-starting-point-for-the-next-generation-the-older-usage-based-upon-this-obvious-fact-is-therefore-to-be-preferred-and-the-spore-may-be-still-held-to-be-the-obvious-boundary-between-the-two-generations-the-gametophyte-or-haploid-phase-will-then-be-recognised-as-extending-from-the-spore-to-the-zygote-in-each-cycle-and-it-shows-quot-nquot-chromosomes-normally-in-all-its-nuclear-divisions-the-sporophyte-or-diploid-phase-is-recognised-a-RDXH0P.jpg ". The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. 52 ALTERNATING GENERATIONS one generation and forms the starting-point for the next generation : the older usage based upon this obvious fact is, therefore, to be preferred, and the spore may be still held to be the obvious boundary between the two generations. The gametophyte, or haploid phase, will then be recognised as extending from the spore to the zygote in each cycle, and it shows " n" chromosomes normally in all its nuclear divisions: the sporophyte, or diploid phase, is recognised a Stock Photo")
. The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. 52 ALTERNATING GENERATIONS one generation and forms the starting-point for the next generation : the older usage based upon this obvious fact is, therefore, to be preferred, and the spore may be still held to be the obvious boundary between the two generations. The gametophyte, or haploid phase, will then be recognised as extending from the spore to the zygote in each cycle, and it shows " n" chromosomes normally in all its nuclear divisions: the sporophyte, or diploid phase, is recognised a Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/the-origin-of-a-land-flora-a-theory-based-upon-the-facts-of-alternation-plant-morphology-52-alternating-generations-one-generation-and-forms-the-starting-point-for-the-next-generation-the-older-usage-based-upon-this-obvious-fact-is-therefore-to-be-preferred-and-the-spore-may-be-still-held-to-be-the-obvious-boundary-between-the-two-generations-the-gametophyte-or-haploid-phase-will-then-be-recognised-as-extending-from-the-spore-to-the-zygote-in-each-cycle-and-it-shows-quot-nquot-chromosomes-normally-in-all-its-nuclear-divisions-the-sporophyte-or-diploid-phase-is-recognised-a-image232309414.htmlRMRDXH0P–. The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. 52 ALTERNATING GENERATIONS one generation and forms the starting-point for the next generation : the older usage based upon this obvious fact is, therefore, to be preferred, and the spore may be still held to be the obvious boundary between the two generations. The gametophyte, or haploid phase, will then be recognised as extending from the spore to the zygote in each cycle, and it shows " n" chromosomes normally in all its nuclear divisions: the sporophyte, or diploid phase, is recognised a
. Botany of the living plant. Botany; Plants. ZYGOTE /t rfnf/iecu/ium /IreheaoMum Oametophyte. â budlavuj Fig 400. Diagram illustrating the cycle of life of a Fern. The normal cycle thus presented to the eye involves differences of nuclear condition of the alternating phases, those differences being established re- spectively by fertilisation and by the tetrad-division. The sporophyte or Fern-Plant is diploid, and the number of chromosomes is usually very large (about 90 for Athyrium, 144 for Dryopteris pseudo-mas, but 32 for Marsilia). This number is reduced to one-half in the tetrad-division Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-plants-zygote-t-rfnfiecuium-ireheaomum-oametophyte-budlavuj-fig-400-diagram-illustrating-the-cycle-of-life-of-a-fern-the-normal-cycle-thus-presented-to-the-eye-involves-differences-of-nuclear-condition-of-the-alternating-phases-those-differences-being-established-re-spectively-by-fertilisation-and-by-the-tetrad-division-the-sporophyte-or-fern-plant-is-diploid-and-the-number-of-chromosomes-is-usually-very-large-about-90-for-athyrium-144-for-dryopteris-pseudo-mas-but-32-for-marsilia-this-number-is-reduced-to-one-half-in-the-tetrad-division-image234376976.htmlRMRH8P68–. Botany of the living plant. Botany; Plants. ZYGOTE /t rfnf/iecu/ium /IreheaoMum Oametophyte. â budlavuj Fig 400. Diagram illustrating the cycle of life of a Fern. The normal cycle thus presented to the eye involves differences of nuclear condition of the alternating phases, those differences being established re- spectively by fertilisation and by the tetrad-division. The sporophyte or Fern-Plant is diploid, and the number of chromosomes is usually very large (about 90 for Athyrium, 144 for Dryopteris pseudo-mas, but 32 for Marsilia). This number is reduced to one-half in the tetrad-division
. Principles of modern biology. Biology. Fig. 12-5. Hundreds of fern gametophytes (prothallia) growing on the moist wall of a small flower pot. This photo shows the approximate actual size of the gameto- phytes. (Copyright, General Biological Supply House, Inc.) the sporophyte generation are diploid. In the sporangia, however, the spores arise by meiosis from spore mother cells, and each haploid spore represents the beginning of the gametophyte generation. Each spore pro- duces all the cells of the gametophyte by mitosis, and consequently all the cells of the gametophyte remain haploid. Higher Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/principles-of-modern-biology-biology-fig-12-5-hundreds-of-fern-gametophytes-prothallia-growing-on-the-moist-wall-of-a-small-flower-pot-this-photo-shows-the-approximate-actual-size-of-the-gameto-phytes-copyright-general-biological-supply-house-inc-the-sporophyte-generation-are-diploid-in-the-sporangia-however-the-spores-arise-by-meiosis-from-spore-mother-cells-and-each-haploid-spore-represents-the-beginning-of-the-gametophyte-generation-each-spore-pro-duces-all-the-cells-of-the-gametophyte-by-mitosis-and-consequently-all-the-cells-of-the-gametophyte-remain-haploid-higher-image232317269.htmlRMRDXY19–. Principles of modern biology. Biology. Fig. 12-5. Hundreds of fern gametophytes (prothallia) growing on the moist wall of a small flower pot. This photo shows the approximate actual size of the gameto- phytes. (Copyright, General Biological Supply House, Inc.) the sporophyte generation are diploid. In the sporangia, however, the spores arise by meiosis from spore mother cells, and each haploid spore represents the beginning of the gametophyte generation. Each spore pro- duces all the cells of the gametophyte by mitosis, and consequently all the cells of the gametophyte remain haploid. Higher
. Fundamentals of botany. Botany. FUNDAMENTAL PRINCIPLES ^S3 The fact of a cycle in the Hfe history is brought out clearly in the following diagram:. Fig. 135.—Diagram of life-cycle of a fern. 167. Reduction.—Since the sporophyte (descended from the diploid oosperm) has cells of a double nature, resulting from fertilization, and since the spores which give rise to the gametophyte are of a single (or haploid) nature, there must occur, at some stage in the life of the sporo- phyte, a process of reduction, restoring the cells, made diploid by fertilization, to the haploid condition. Pains- taking Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/fundamentals-of-botany-botany-fundamental-principles-s3-the-fact-of-a-cycle-in-the-hfe-history-is-brought-out-clearly-in-the-following-diagram-fig-135diagram-of-life-cycle-of-a-fern-167-reductionsince-the-sporophyte-descended-from-the-diploid-oosperm-has-cells-of-a-double-nature-resulting-from-fertilization-and-since-the-spores-which-give-rise-to-the-gametophyte-are-of-a-single-or-haploid-nature-there-must-occur-at-some-stage-in-the-life-of-the-sporo-phyte-a-process-of-reduction-restoring-the-cells-made-diploid-by-fertilization-to-the-haploid-condition-pains-taking-image232396630.htmlRMRE2G7J–. Fundamentals of botany. Botany. FUNDAMENTAL PRINCIPLES ^S3 The fact of a cycle in the Hfe history is brought out clearly in the following diagram:. Fig. 135.—Diagram of life-cycle of a fern. 167. Reduction.—Since the sporophyte (descended from the diploid oosperm) has cells of a double nature, resulting from fertilization, and since the spores which give rise to the gametophyte are of a single (or haploid) nature, there must occur, at some stage in the life of the sporo- phyte, a process of reduction, restoring the cells, made diploid by fertilization, to the haploid condition. Pains- taking
. Botany of the living plant. Botany. ZYGOTE A /Irrfheru/ium. Oametophyte â l/u/Jina Fig. 291. Diagram illustrating the cycle of life of a Fern. The normal cycle thus presented to the eye involves differences of nuclear condition of the alternating phases, those differences being established re- spectively by fertilisation and by the tetrad-division. The sporophyte or Fern-Plant is diploid, and the number of chromosomes is usually very large (about 90 for Athyrium, 144 for Lastraea pseudo-mas, but only 32 for Marsilia). This number is reduced to one half in the tetrad-division of the spore-mot Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-zygote-a-irrfheruium-oametophyte-lujina-fig-291-diagram-illustrating-the-cycle-of-life-of-a-fern-the-normal-cycle-thus-presented-to-the-eye-involves-differences-of-nuclear-condition-of-the-alternating-phases-those-differences-being-established-re-spectively-by-fertilisation-and-by-the-tetrad-division-the-sporophyte-or-fern-plant-is-diploid-and-the-number-of-chromosomes-is-usually-very-large-about-90-for-athyrium-144-for-lastraea-pseudo-mas-but-only-32-for-marsilia-this-number-is-reduced-to-one-half-in-the-tetrad-division-of-the-spore-mot-image234378858.htmlRMRH8THE–. Botany of the living plant. Botany. ZYGOTE A /Irrfheru/ium. Oametophyte â l/u/Jina Fig. 291. Diagram illustrating the cycle of life of a Fern. The normal cycle thus presented to the eye involves differences of nuclear condition of the alternating phases, those differences being established re- spectively by fertilisation and by the tetrad-division. The sporophyte or Fern-Plant is diploid, and the number of chromosomes is usually very large (about 90 for Athyrium, 144 for Lastraea pseudo-mas, but only 32 for Marsilia). This number is reduced to one half in the tetrad-division of the spore-mot
. Principles of modern biology. Biology. The Plant Kingdom - 621. ANGIOSPERMS Fig. 31-29. Diagram showing an evolutionary trend in the Plant Kingdom. Progressively the diploid (2n) sporophyte generation has become larger and more dominant; while simultaneously the haploid (n) gametophyte generation has diminished, becoming more subordinate and dependent. Among many algae the diploid generation is represented solely by the zygote. (From The Plant World.) or vessels (Fig. 13-8), and tracheids (p. 244) may also be present. Typically the leaves are broad, flat, and very efficient as photosyn- thes Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/principles-of-modern-biology-biology-the-plant-kingdom-621-angiosperms-fig-31-29-diagram-showing-an-evolutionary-trend-in-the-plant-kingdom-progressively-the-diploid-2n-sporophyte-generation-has-become-larger-and-more-dominant-while-simultaneously-the-haploid-n-gametophyte-generation-has-diminished-becoming-more-subordinate-and-dependent-among-many-algae-the-diploid-generation-is-represented-solely-by-the-zygote-from-the-plant-world-or-vessels-fig-13-8-and-tracheids-p-244-may-also-be-present-typically-the-leaves-are-broad-flat-and-very-efficient-as-photosyn-thes-image232336619.htmlRMRDYRMB–. Principles of modern biology. Biology. The Plant Kingdom - 621. ANGIOSPERMS Fig. 31-29. Diagram showing an evolutionary trend in the Plant Kingdom. Progressively the diploid (2n) sporophyte generation has become larger and more dominant; while simultaneously the haploid (n) gametophyte generation has diminished, becoming more subordinate and dependent. Among many algae the diploid generation is represented solely by the zygote. (From The Plant World.) or vessels (Fig. 13-8), and tracheids (p. 244) may also be present. Typically the leaves are broad, flat, and very efficient as photosyn- thes
. Botany of the living plant. Botany. LYCOPODIALES 323 It will be noted that there is no interruption of the development by a period of rest, as in the matured seeds of Flowering Plants. The hfe-cycle of Selaginella, though it does not involve the formation of a seed, or include any dormant period, corresponds in its essentials to that in Flowering Plants. In both cases the plant itself is the diploid, or sporophyte generation. The events may be compared, starting from the production of the spore. The fact that the pollen- sac and ovule of seed-bearing plants differ in form and position from t Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-lycopodiales-323-it-will-be-noted-that-there-is-no-interruption-of-the-development-by-a-period-of-rest-as-in-the-matured-seeds-of-flowering-plants-the-hfe-cycle-of-selaginella-though-it-does-not-involve-the-formation-of-a-seed-or-include-any-dormant-period-corresponds-in-its-essentials-to-that-in-flowering-plants-in-both-cases-the-plant-itself-is-the-diploid-or-sporophyte-generation-the-events-may-be-compared-starting-from-the-production-of-the-spore-the-fact-that-the-pollen-sac-and-ovule-of-seed-bearing-plants-differ-in-form-and-position-from-t-image234379250.htmlRMRH8W3E–. Botany of the living plant. Botany. LYCOPODIALES 323 It will be noted that there is no interruption of the development by a period of rest, as in the matured seeds of Flowering Plants. The hfe-cycle of Selaginella, though it does not involve the formation of a seed, or include any dormant period, corresponds in its essentials to that in Flowering Plants. In both cases the plant itself is the diploid, or sporophyte generation. The events may be compared, starting from the production of the spore. The fact that the pollen- sac and ovule of seed-bearing plants differ in form and position from t
. Heredity and evolution in plants. Heredity; Plants. FUNDAMENTAL PRINCIPLES 35 The fact of a cycle in the hfe history is brought out clearly in the following diagram:. Fig. 29.—Diagram of life-cycle of a fern. 27. Reduction.—Since the sporophyte (descended from the diploid oosperm) has cells of a double nature, resulting from fertilization, and since the spores which give rise to the gametophyte are of a single (or haploid) nature, there must occur, at some stage in the life of the sporo- phyte, a process of reduction, restoring the cells, made diploid by fertilization, to the haploid conditi Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/heredity-and-evolution-in-plants-heredity-plants-fundamental-principles-35-the-fact-of-a-cycle-in-the-hfe-history-is-brought-out-clearly-in-the-following-diagram-fig-29diagram-of-life-cycle-of-a-fern-27-reductionsince-the-sporophyte-descended-from-the-diploid-oosperm-has-cells-of-a-double-nature-resulting-from-fertilization-and-since-the-spores-which-give-rise-to-the-gametophyte-are-of-a-single-or-haploid-nature-there-must-occur-at-some-stage-in-the-life-of-the-sporo-phyte-a-process-of-reduction-restoring-the-cells-made-diploid-by-fertilization-to-the-haploid-conditi-image232077828.htmlRMRDG1HT–. Heredity and evolution in plants. Heredity; Plants. FUNDAMENTAL PRINCIPLES 35 The fact of a cycle in the hfe history is brought out clearly in the following diagram:. Fig. 29.—Diagram of life-cycle of a fern. 27. Reduction.—Since the sporophyte (descended from the diploid oosperm) has cells of a double nature, resulting from fertilization, and since the spores which give rise to the gametophyte are of a single (or haploid) nature, there must occur, at some stage in the life of the sporo- phyte, a process of reduction, restoring the cells, made diploid by fertilization, to the haploid conditi
![. Principles of modern biology. Biology. :âSPOROPHYTE * ^m -GAMETOPHYTE BOTH GENERATIONS. EMBRYO SPOROPHYTE DEVELOPING IN ARCHEGONIUM GAMETOPHYTE BUD 3^ DIVISION OF A SPOROCYTE (MEIOSIS) â K"; PROTONEMA WITH BUDS BUDS DEVELOPING INTO LEAVES AND STEMS GERMINATION OF A SPORE Fig. 12-12. Reproductive cycle of a moss plant, typical of bryophytes generally. Be sure to differentiate be- tween the haploid and diploid stages. However, only one sperm usually participates in fertilization, which occurs in the venter chamber. The fertilized egg marks the inception of the sporophyte generation. Shor Stock Photo](https://c8.alamy.com/comp/RDYW9J/principles-of-modern-biology-biology-sporophyte-m-gametophyte-both-generations-embryo-sporophyte-developing-in-archegonium-gametophyte-bud-3-division-of-a-sporocyte-meiosis-kquot-protonema-with-buds-buds-developing-into-leaves-and-stems-germination-of-a-spore-fig-12-12-reproductive-cycle-of-a-moss-plant-typical-of-bryophytes-generally-be-sure-to-differentiate-be-tween-the-haploid-and-diploid-stages-however-only-one-sperm-usually-participates-in-fertilization-which-occurs-in-the-venter-chamber-the-fertilized-egg-marks-the-inception-of-the-sporophyte-generation-shor-RDYW9J.jpg ". Principles of modern biology. Biology. :âSPOROPHYTE * ^m -GAMETOPHYTE BOTH GENERATIONS. EMBRYO SPOROPHYTE DEVELOPING IN ARCHEGONIUM GAMETOPHYTE BUD 3^ DIVISION OF A SPOROCYTE (MEIOSIS) â K"; PROTONEMA WITH BUDS BUDS DEVELOPING INTO LEAVES AND STEMS GERMINATION OF A SPORE Fig. 12-12. Reproductive cycle of a moss plant, typical of bryophytes generally. Be sure to differentiate be- tween the haploid and diploid stages. However, only one sperm usually participates in fertilization, which occurs in the venter chamber. The fertilized egg marks the inception of the sporophyte generation. Shor Stock Photo")
. Principles of modern biology. Biology. :âSPOROPHYTE * ^m -GAMETOPHYTE BOTH GENERATIONS. EMBRYO SPOROPHYTE DEVELOPING IN ARCHEGONIUM GAMETOPHYTE BUD 3^ DIVISION OF A SPOROCYTE (MEIOSIS) â K"; PROTONEMA WITH BUDS BUDS DEVELOPING INTO LEAVES AND STEMS GERMINATION OF A SPORE Fig. 12-12. Reproductive cycle of a moss plant, typical of bryophytes generally. Be sure to differentiate be- tween the haploid and diploid stages. However, only one sperm usually participates in fertilization, which occurs in the venter chamber. The fertilized egg marks the inception of the sporophyte generation. Shor Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/principles-of-modern-biology-biology-sporophyte-m-gametophyte-both-generations-embryo-sporophyte-developing-in-archegonium-gametophyte-bud-3-division-of-a-sporocyte-meiosis-kquot-protonema-with-buds-buds-developing-into-leaves-and-stems-germination-of-a-spore-fig-12-12-reproductive-cycle-of-a-moss-plant-typical-of-bryophytes-generally-be-sure-to-differentiate-be-tween-the-haploid-and-diploid-stages-however-only-one-sperm-usually-participates-in-fertilization-which-occurs-in-the-venter-chamber-the-fertilized-egg-marks-the-inception-of-the-sporophyte-generation-shor-image232337886.htmlRMRDYW9J–. Principles of modern biology. Biology. :âSPOROPHYTE * ^m -GAMETOPHYTE BOTH GENERATIONS. EMBRYO SPOROPHYTE DEVELOPING IN ARCHEGONIUM GAMETOPHYTE BUD 3^ DIVISION OF A SPOROCYTE (MEIOSIS) â K"; PROTONEMA WITH BUDS BUDS DEVELOPING INTO LEAVES AND STEMS GERMINATION OF A SPORE Fig. 12-12. Reproductive cycle of a moss plant, typical of bryophytes generally. Be sure to differentiate be- tween the haploid and diploid stages. However, only one sperm usually participates in fertilization, which occurs in the venter chamber. The fertilized egg marks the inception of the sporophyte generation. Shor
. Botany of the living plant. Botany; Plants. 568 BOTANY OF THE LIVING PLANT Pea has 14 chromosomes, the Gooseberry 16, Maize 20 and the Tomato 24 ; these, of course, are the diploid numbers, each chromosome being present in the sporophyte cells in duplicate. The actual chromosome number, though characteristic of a particular species, or race, is apparently not in itself of special significance ; that is to say, there is no correlation between chromosome number (or chromosome size) on. Please note that these images are extracted from scanned page images that may have been digitally enhanced fo Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-plants-568-botany-of-the-living-plant-pea-has-14-chromosomes-the-gooseberry-16-maize-20-and-the-tomato-24-these-of-course-are-the-diploid-numbers-each-chromosome-being-present-in-the-sporophyte-cells-in-duplicate-the-actual-chromosome-number-though-characteristic-of-a-particular-species-or-race-is-apparently-not-in-itself-of-special-significance-that-is-to-say-there-is-no-correlation-between-chromosome-number-or-chromosome-size-on-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-fo-image234376171.htmlRMRH8N5F–. Botany of the living plant. Botany; Plants. 568 BOTANY OF THE LIVING PLANT Pea has 14 chromosomes, the Gooseberry 16, Maize 20 and the Tomato 24 ; these, of course, are the diploid numbers, each chromosome being present in the sporophyte cells in duplicate. The actual chromosome number, though characteristic of a particular species, or race, is apparently not in itself of special significance ; that is to say, there is no correlation between chromosome number (or chromosome size) on. Please note that these images are extracted from scanned page images that may have been digitally enhanced fo
. Botany of the living plant. Botany; Plants. 336 BOTANY OF THE LIVING PLANT haploid ; the latter results from fertilisation, and is diploid. Between these, and derived respectively from them, are two phases of cellular amplification, each forming a soma, or plant-body. The one is the Sporophyte, or rooted plant, which springs from the Zygote, and is diploid ; the other is rudimentary in the Flowering Plants, though it is more fully represented in lower forms. It is initiated by the haploid spore, and is itself haploid. It consists here of only a few cells contained on the one hand in the embr Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/botany-of-the-living-plant-botany-plants-336-botany-of-the-living-plant-haploid-the-latter-results-from-fertilisation-and-is-diploid-between-these-and-derived-respectively-from-them-are-two-phases-of-cellular-amplification-each-forming-a-soma-or-plant-body-the-one-is-the-sporophyte-or-rooted-plant-which-springs-from-the-zygote-and-is-diploid-the-other-is-rudimentary-in-the-flowering-plants-though-it-is-more-fully-represented-in-lower-forms-it-is-initiated-by-the-haploid-spore-and-is-itself-haploid-it-consists-here-of-only-a-few-cells-contained-on-the-one-hand-in-the-embr-image234370640.htmlRMRH8E40–. Botany of the living plant. Botany; Plants. 336 BOTANY OF THE LIVING PLANT haploid ; the latter results from fertilisation, and is diploid. Between these, and derived respectively from them, are two phases of cellular amplification, each forming a soma, or plant-body. The one is the Sporophyte, or rooted plant, which springs from the Zygote, and is diploid ; the other is rudimentary in the Flowering Plants, though it is more fully represented in lower forms. It is initiated by the haploid spore, and is itself haploid. It consists here of only a few cells contained on the one hand in the embr
. Principles of modern biology. Biology. Reproduction in Multicellular Plants - 207. Fig. 12-5. Hundreds of fern gametophytes (prothallia) growing on the moist wall of a small flower pot. This photo shows the approximate actual size of the gameto- phytes. (Copyright, General Biological Supply House, Inc.) the sporophyte generation are diploid. In the sporangia, however, the spores arise by meiosis from spore mother cells, and each haploid spore represents the beginning of the gametophyte generation. Each spore pro- duces all the cells of the gametophyte by mitosis, and consequently all the cel Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/principles-of-modern-biology-biology-reproduction-in-multicellular-plants-207-fig-12-5-hundreds-of-fern-gametophytes-prothallia-growing-on-the-moist-wall-of-a-small-flower-pot-this-photo-shows-the-approximate-actual-size-of-the-gameto-phytes-copyright-general-biological-supply-house-inc-the-sporophyte-generation-are-diploid-in-the-sporangia-however-the-spores-arise-by-meiosis-from-spore-mother-cells-and-each-haploid-spore-represents-the-beginning-of-the-gametophyte-generation-each-spore-pro-duces-all-the-cells-of-the-gametophyte-by-mitosis-and-consequently-all-the-cel-image232317275.htmlRMRDXY1F–. Principles of modern biology. Biology. Reproduction in Multicellular Plants - 207. Fig. 12-5. Hundreds of fern gametophytes (prothallia) growing on the moist wall of a small flower pot. This photo shows the approximate actual size of the gameto- phytes. (Copyright, General Biological Supply House, Inc.) the sporophyte generation are diploid. In the sporangia, however, the spores arise by meiosis from spore mother cells, and each haploid spore represents the beginning of the gametophyte generation. Each spore pro- duces all the cells of the gametophyte by mitosis, and consequently all the cel
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