DOCSLIB.ORG

Examining Flowers and Fruits

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Examining Flowers and Fruits Student Learning Objectives Examining Flowers Identify the major parts of flowers and and Fruits explain the functions of the parts. Describe the types of flowers. Explain the processes of pollination and Basic Principles of fertilization. Agricultural/Horticultural Science Describe the purposes and kinds of fruit. Problem Area 4. Identifying Basic Explain the structure and kinds of seed. Principles of Plant Science Terms Terms Complete flower Flower Micropyle Radicle Cotyledons Fruit Perfect flower Seed Dry fruit Hilum Petals Seed coat Endosperm Hull fruit Pistil Seed scar Epicotyl Hypocotyl Plumule Sepals Fertilization Imperfect flower Pod fruit Silk scar Fleshy fruit Incomplete flower Pollen Stamens Pollination Stigma What are the major parts Interest Approach of flowers? Why are flowers important to A flower is the reproductive part of people?” flowering plants. Flowers are in many shapes and What is the purpose of colors. flowers to a plant? • Some flowers are attractive and have appealing fragrances. • Some flowers are important as a step in producing fruit and seed. Parts of a Perfect Flower Sepals The sepals are the outer parts of a flower. They cover the bud before it opens and typically have a green color. Sepals offer protection to the developing bud. They are in an outer ring known as a calyx. Petals Petals The petals are located just inside The major parts of flowers are to the sepals and are usually brightly support the production of fruit and colored to attract insects and seed. promote pollination. Petals protect the stamens and pistil and help collect pollen from the air. Petals are in an inner ring known as a corolla. Stamens Pistil The stamens produce pollen The pistil contains the ovary, and are the male parts of a which has ovules that are flower. fertilized by the pollen, and, A stamen consists of a filament on some species, develops and anther, which is a knob-like into a large fleshy fruit structure at the end of a structure. filament. The pistil also contains the stigma and style. Pistil Pistil Pollen grains grow a long tube The stigma is the opening at the end of the pistil for the entry of through the style toward the ovules pollen. and form two sperm. One sperm unites with the ovule in the ovary to form an embryo. The style leads from the stigma to the ovary. The other sperm forms tissue in the developing seed known as endosperm. Type of flower is based on the Parts of a Perfect Flower parts found in the flower. A complete flower has four principal parts: sepals, petals, stamens, and pistil. An incomplete flower does not have all four principal parts. Examples of an incomplete flower: wheat and oats, which do not have sepals and petals. Parts of a flower determine if it Parts of a flower determine if it is is perfect or imperfect. perfect or imperfect. Plant species that have both male A perfect flower has the stamen and pistil in the same flower. and female flowers on the same plant are known as monoecious An imperfect flower lacks either plants. stamens or pistils. – An example is corn. A flower that has stamens and not a Plant species with the male flowers pistil is often referred to as a male and female flowers on separate flower. plants are known as dioecious A flower that has a pistil but no plants. stamens is a female flower. – An example is the muscadine grape. What is pollination? What is pollination? Pollination is the transfer of pollen Pollen is the male sex cell in plants from an anther to a stigma of a Pollen is released by the anther flower of the same species. which is a part of the stamen. It matures as a powdery substance It is an important process with crop growers to assure fruit and seed that may be moved by wind, production. insects, or other animals. What is pollination? What is fertilization? The stigma is a part of the female Fertilization is the union of the reproductive system of a plant. pollen cell with the ovule. The stigma secretes a sticky A pollen grain forms two sperm as substance that traps pollen. it reaches the ovule. After being trapped on the stigma, One sperm unites with the ovule to the pollen grain grows a tube form an embryo; the other sperm through the style toward the ovule forms tissue known as endosperm (egg cell). in the seed. Describe the purposes and What are the purposes of kinds of fruit. fruit? Once fertilization occurs, the flower Fruit varies with the species of plant. is no longer needed and dries up. Some is large, such as watermelon Seed are formed within fruit. or pumpkin. Fruit must be sufficiently mature for Other fruit is smaller, such as a bean the seed to be viable. pod or cherry. Good fruit formation is essential in Fruit is the fertilized ovary of a plant many crops because it is the fruit that grows to produce and protect that is often the most valuable seed. product of a plant. What are the kinds of fruit? What are the kinds of fruit? Fleshy fruit is large fibrous Dry fruit is formed as a pod or in a structures that surround seed. hull. A berry is a kind of fleshy fruit that Caryopsis are kinds of dry fruits is typically small, with strawberries with thin walls such as wheat and and tomatoes being examples. barley. A pome is a fleshy fruit with several Samara are kinds of dry fruits with seeds such as an apple or a pear. wings attached to aid dispersion, with elm, ash, and maple being A drupe is a single-seeded fleshy fruit such as plum or cherry. examples. Explain the structure and What are the kinds of fruit? kinds of seed. Pod fruit has a definite line or seam A seed is a container of new plant in the fruit, such as beans, peas, life. peanuts, and cotton. Seed are formed in the ovaries of Hull fruit do not have definite lines flowers. or seams in the shell of the fruit, Good pollination is essential to such as pecans and corn. assure an abundance of seed. Seed are used to reproduce plants. A seed must protect the embryo and provide food for it to grow. Explain the structure and Explain the structure and kinds of seed. kinds of seed. Seed have many important uses to With some plants, growers want humans, such as food production. fruit with few or no seed such as With some plants, such as seedless grapes or oranges. soybeans and corn, growers want The fruit of these plants are large yields of seed. valuable rather than the seed. The seed of these plants are valuable and not the fruit. Seed structure includes external parts and internal Seed structure varies with parts. the kind of plant External parts are designed to Dicot nourish and protect the internal parts of the seed. –bean seed Internal parts include an embryo Monocot and needed food supply. –corn seed Dicot - Bean Seed Dicot - Bean Seed External Seed coat—The seed coat is the outer covering of the seed that protects the embryo from injury and holds the seed together. Hilum - The hilum is the point at which the seed was attached in the fruit. – The hilum is also known as the seed scar. Dicot - Bean Seed Dicot - Bean Seed Internal: External - continued Cotyledons—The cotyledons are Micropyle—The micropyle is the fleshy-like structures that contain tiny opening near the hilum through food for the embryo. which the pollen entered the ovule Radicle—The radicle is the part of to form the seed. the seed that forms the root system of the plant. Hypocotyl—The hypocotyl connects the cotyledons and radicle. Dicot - Bean Seed Monocot - Corn Seed Internal - continued Epicotyl - The epicotyl forms the stem of the plant. Plumule—The plumule forms the above ground part of the plant. Monocot - Corn Seed Monocot - Corn Seed External: Internal: Seed coat—The seed coat protects and shapes the seed. Endosperm - the endosperm is the stored food in a monocot seed. Seed scar—The seed scar is the place where the seed was Radicle - the radicle, as with dicots, attached, such as a corn kernel to forms the root system. the corn cob. Hypocotyl - as with dicots, the Silk scar—The silk scar is at the hypocotyl connects the radicle with end opposite the seed scar and is the food source. the place where the silk was attached to the ovule. Monocot - Corn Seed Review Internal - continued Parts of a flower indicate its type. Epicotyl -the epicotyl forms the stems of monocots in a manner Complete flower - has four principal similar to dicots. parts: sepals, petals, stamens, and pistil Incomplete flower - does not have all Cotyledon - the cotyledon in a Monocot absorbs food from the four parts endosperm and moves it to the Perfect flower - stamen and pistil in embryo. same flower Imperfect flower - lacks either stamen or Plumule - the plumule develops into the leaves and stems of the plant. pistil Review Review Fruit - fertilized ovary of a plant Pollination - transfer of pollen from anther to stigma Fleshy - large fibrous structure - apple Pollen - male sex cell of plants Pod - dry fruit with definite line or Stigma - female reproductive part of flower seam - bean Hull - dry fruit without definite line Fertilization - union of pollen cell with ovule or seam - corn Review Dicot = Bean seed – Exterior parts: Seed coat, Hilum, Micropyle – Interior parts: Cotyledons, Radicle, Hypocotyl, Epicotyl, Plumule Monocot = Corn seed – External parts: Seed coat, Seed scar, Silk scar – Internal parts: Endosperm, Radicle, Hypocotyl, Epicotyl, Cotyledon, Plumule .
Load more

Recommended publications
  • Plant Physiology
    PLANT PHYSIOLOGY Vince Ördög Created by XMLmind XSL-FO Converter. PLANT PHYSIOLOGY Vince Ördög Publication date 2011 Created by XMLmind XSL-FO Converter. Table of Contents Cover .................................................................................................................................................. v 1. Preface ............................................................................................................................................ 1 2. Water and nutrients in plant ............................................................................................................ 2 1. Water balance of plant .......................................................................................................... 2 1.1. Water potential ......................................................................................................... 3 1.2. Absorption by roots .................................................................................................. 6 1.3. Transport through the xylem .................................................................................... 8 1.4. Transpiration ............................................................................................................. 9 1.5. Plant water status .................................................................................................... 11 1.6. Influence of extreme water supply .......................................................................... 12 2. Nutrient supply of plant .....................................................................................................
    [Show full text]
  • Flowers and Maturation 3Rd - 5Th Grade
    Flowers and Maturation 3rd - 5th Grade Introduction Over 90% of all plants are angiosperms or flowering plants. When you think of flowers, you probably think of a rose, carnation or maybe, a tulip . It is not just flowers that are flowering plants. In the spring and summer, you can find flowers in many places but, many plants have flowers that you never see. The grass in the yard is a flowering plant but, you have probably never seen their flower. They are hidden inside the plant. A plant lives to produce more plants and it needs a flower to do that. Flowers are responsible for producing seeds This lesson will teach you the parts of a flower and how those parts work. Objectives • Students will understand the role of flowers in the life of a plant. • Students will understand the basic parts of a flower. • Students will understand the function of the parts of the flower. • Students will understand seed development. Background First, let us look at the diagram of a flower. Photo provided by: https://www.colourbox.com/vector/a-common-flower-parts-vector-34289070 kansascornstem.com A “perfect flower” has both male and female parts. There are also parts that are not male or female. The sepal are leaves that protect the flower as it grows. They peel back as the flower grows. The petals give many flowers their beauty, but the most important job they have are to attract insects that will help them in the process of producing seeds. You will read more about that later.
    [Show full text]
  • Flower Power
    FLOWER POWER IDAHO BOTANICAL GARDEN WHAT IS A FLOWER? INSTRUCTIONAL OBJECTIVE: When students finish this project, they will have gained respect for the beauty of flowers and appreciate their ecological and practical importance. INTRODUCTION Dear Teacher, The Idaho Botanical Garden is an outdoor learning environment. We want to make your visit comfortable and enjoyable, and ask that your students are dressed appropriately for the weather and have water, especially in the warm weather months. TERMS Angiosperms: Flowering plants that produce seeds enclosed in a fruit. Anthers: The boxlike structures at the top of stamens, where pollen is produced. Botanical garden: A place where plants are collected and displayed for scientific, educational and artistic purposes. Fertilization: The union of male sperm cells and female egg cells. Filament: The stalk of the stamen. Flower: The reproductive structure of an angiosperm. Fruit: A ripened ovary conaining seeds. Nectar: The sweet liquid produced by flowers to attract pollinators. Ovary: The hollow compartment at the base of the pistil which contains ovules. It develops into a fruit containing seeds. Ovules: The structures in a flower ovary that can develop into seeds. Pistil: The female part of a flower; stigma, style, and ovary. Pollen: A yellow, powder-like material containing sperm cells. Pollen tubes: Tubes that carry sperm cells from the stigma into the ovary. Pollination: The process of pollen coming together with the stigma of a flower. Pollinators: Animals which carry pollen from one flower to another. Seed: A structure containing a baby plant and its food supply, which is surrounded by a protective seed coat.
    [Show full text]
  • What Are Soybeans?
    candy, cakes, cheeses, peanut butter, animal feeds, candles, paint, body lotions, biodiesel, furniture soybeans USES: What are soybeans? Soybeans are small round seeds, each with a tiny hilum (small brown spot). They are made up of three basic parts. Each soybean has a seed coat (outside cover that protects the seed), VOCABULARY cotyledon (the first leaf or pair of leaves within the embryo that stores food), and the embryo (part of a seed that develops into Cultivar: a variety of plant that has been created or a new plant, including the stem, leaves and roots). Soybeans, selected intentionally and maintained through cultivation. like most legumes, perform nitrogen fixation. Modern soybean Embryo: part of a seed that develops into a new plant, cultivars generally reach a height of around 1 m (3.3 ft), and including the stem, leaves and roots. take 80–120 days from sowing to harvesting. Exports: products or items that the U.S. sells and sends to other countries. Exports include raw products like whole soybeans or processed products like soybean oil or Leaflets soybean meal. Fertilizer: any substance used to fertilize the soil, especially a commercial or chemical manure. Hilum: the scar on a seed marking the point of attachment to its seed vessel (the brown spot). Leaflets: sub-part of leaf blade. All but the first node of soybean plants produce leaves with three leaflets. Legume: plants that perform nitrogen fixation and whose fruit is a seed pod. Beans, peas, clover and alfalfa are all legumes. Nitrogen Fixation: the conversion of atmospheric nitrogen Leaf into a nitrogen compound by certain bacteria, such as Stem rhizobium in the root nodules of legumes.
    [Show full text]
  • International Union for the Protection of New Varieties of Plants
    E TG/81/7(proj.1) ORIGINAL: English DATE: 2018-04-05 INTERNATIONAL UNION FOR THE PROTECTION OF NEW VARIETIES OF PLANTS Geneva DRAFT * COMMON SUNFLOWER UPOV Code(s): HLNTS_ANN Helianthus annuus L. GUIDELINES FOR THE CONDUCT OF TESTS FOR DISTINCTNESS, UNIFORMITY AND STABILITY prepared by experts from Hungary to be considered by the Technical Working Party for Agricultural Crops at its forty-seventh session, to be held in Naivasha, Kenya, from 2018-05-21 to 2018-05-25 Disclaimer: this document does not represent UPOV policies or guidance Alternative names:* Botanical name English French German Spanish Helianthus annuus L. Common Sunflower Soleil, Tournesol Sonnenblume Girasol The purpose of these guidelines (“Test Guidelines”) is to elaborate the principles contained in the General Introduction (document TG/1/3), and its associated TGP documents, into detailed practical guidance for the harmonized examination of distinctness, uniformity and stability (DUS) and, in particular, to identify appropriate characteristics for the examination of DUS and production of harmonized variety descriptions. ASSOCIATED DOCUMENTS These Test Guidelines should be read in conjunction with the General Introduction and its associated TGP documents. * These names were correct at the time of the introduction of these Test Guidelines but may be revised or updated. [Readers are advised to consult the UPOV Code, which can be found on the UPOV Website (www.upov.int), for the latest information.] TG/81/7(proj.1) Common Sunflower, 2018-04-05 2 TABLE OF CONTENTS PAGE 1.
    [Show full text]
  • Parts of a Plant Packet - Parts of a Plant Notes - Parts of a Plant Notes Key - Parts of a Plant Labeling Practice
    Parts of a Plant Packet - Parts of a Plant Notes - Parts of a Plant Notes Key - Parts of a Plant Labeling Practice Includes Vocabulary: Stigma Stamen Leaf Style Petal Stoma Ovary Receptacle Cuticle Ovule Sepal Shoot System Pistil Xylem Root Hairs Anther Phloem Roots Filament Stem Root System Parts of a Plant Notes 18 14 13 (inside; for food) 15 12 (inside; for water) 16, these are 19 massively out of proportion… 21 17, covering 20 Picture modified from http://www.urbanext.uiuc.edu/gpe/index.html 1. __________- sticky part of the pistil that pollen sticks to 2. __________-long outgrowth of the ovary that collects pollen from the stamens 3. __________- base part of the pistil that holds the ovules 4. __________- unfertilized seed of the plant 5. __________- female part of the flower that contains the stigma, style, ovary and ovules. 6. __________- part of the flower that holds the pollen 7. __________- long thread-like part of the flower that holds the anthers out so insects can get to the pollen. 8. __________- male part of the flower that contains the anther and the filament. 9. __________- colorful part of the flower that protects the flower and attracts insects and other pollinators. 10. __________- stalk that bears the flower parts 11. __________- part that covers the outside of a flower bud to protect the flower before it opens 12. _________- transports water. 13. _________- transports food 14. _________- transport and support for the plant. 15. _________- cells of this perform photosynthesis. 16. _________-holes in the leaf which allow CO2 in and O2 and H2O out.
    [Show full text]
  • Effects of Root Pruning on Germinated Pecan Seedlings
    PROPAGATION AND TISSUE CULTURE HORTSCIENCE 50(10):1549–1552. 2015. if pruning the roots shortly after germination stimulates lateral root formation. Similarly, little work has been attempted to consider Effects of Root Pruning on Germinated the effects of taproot pruning in young pecan seedlings back to different lengths on root Pecan Seedlings regeneration. The objective of this study 1 was to determine if root pruning at different Rui Zhang, Fang-Ren Peng , Pan Yan, Fan Cao, periods after seed germination affects pecan and Zhuang-Zhuang Liu seedling root and shoot growth and to evaluate College of Forestry, Nanjing Forestry University, 159 Longpan Road, different degrees of taproot pruning on root Nanjing 210037, China initiation. Dong-Liang Le Materials and Methods College of Forestry, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China; and Nanjing Green Universe Pecan Science and The test was established at Lvzhou Pecan Research Station, Nanjing, China (lat. Technology Co. Ltd., 38 Muxuyuan Street, Nanjing 210007, China 32.05°N, long. 118.77°E). Open-pollinated Peng-Peng Tan seeds of the Chinese selection ‘Shaoxing’ were used as seed stock to produce seedlings. College of Forestry, Nanjing Forestry University, 159 Longpan Road, ‘Shaoxing’ had a small nut of very good Nanjing 210037, China quality with 50% percentage fill. The seeds averaged 30.4 mm in length, 20.9 mm in Additional index words. Carya illinoinensis, taproot, lateral root, shoot growth width, and 5.4 g in weight. Seeds were Abstract. Root systems of pecan trees are usually dominated by a single taproot with few collected on 7 Nov.
    [Show full text]
  • Germination Structure of Seeds Quote
    Germination Structure of Seeds Quote: Thomas Fuller's Gnomologia, 1732: "The greatest Oaks have been little Acorns." Seeds are found in a staggering array of shapes and sizes, but the process by which seeds germinate is similar in all species. Abies koreana Acer griseum Wisteria floribunda 'Korean Fir' by Roger Culos. CC BY-SA. 'Paperbark Maple' by Roger Culos. CC 'Japanese Wisteria' by Roger BY-SA. Culos. CC BY-SA. Alsomitra macrocarpa Macrozamia communis Strelitzia reginae 'Alsomitra macrocarpa seed' by Scott 'BurrawangSeeds' by AYArktos. CC BY- 'Paradiesvogelblumensamen' by Zona. CC BY. SA. Sebastian Stabinger. CC BY-SA. Taraxicum officinale Stephanotis floribunda Phleum pratense 'Achane of Taraxacum sect. 'Stephanotis seed' by L. Marie"/Lenore 'Timoteegras vruchten Phleum Ruderalia' by Didier Edman, Sunnyvale, CA. CC BY. pratense' by Rasbak. CC BY-SA. Descouens. CC BY-SA. Dicotyledon seeds testa epicotyl plumule hypocotyl cotyledon radicle 'Aesculus hippocastanum seed section' by Boronian. CC BY. plumule epicotyl hypocotyl testa hilum radicle cotyledon micropyle endosperm Monocotyledon seeds endosperm epicotyl testa hypocotyl cotyledon radicle Parts of a seed Testa The seed coat. A protective layer which is tough and hard and it protects the seed from attack by insects, fungi and bacteria. Cotyledon Dicotyledons have 2 cotyledons Monocotyledons have 1 cotyledon A cotyledon is an embryonic leaf. It is the first leaf to appear when a seedling grows. They often contain reserves of food which the developing seedling can use to grow. Epicotyl The section of stem between the cotyledon(s) and the plumule. In a seedling it is the section of stem between the cotyledons and the first true leaves.
    [Show full text]
  • Soybean Growth and Development & Management Information Fo Replant Decisions
    MAGRCORE Metadata, citation and similar papers at core.ac.uk GOVSProvided by University of Minnesota Digital Conservancy MN 2500 AGFO-5701 MINNESOTA EXTENSION SERVICE I:,:, I UNIVERSITY OF MINNESOTA AGRICULTURE Soybean Growth and Development & Management Information fo UNIVf:R&TYoF MINNESOTA J DOCUMENTS ~ Replant Decisions JUL ·2s 1991 ,1 ·I shoot apex emerging decomposing radicle · - seed coat primary root L.L. Hardman J.L. Gunsolus Extension Agronomist-Crops Extension Agronomist-Weed Control Dept. of Agronomy & Dept. of Agronomy & Plant Genetics Plant Genetics Univ. of MN, St. Paul Univ. of MN, St. Paul SOYBEAN GROWTH AND DEVELOPMENT stored food is removed the cotyledons tum yellow and shrivel before dropping off the plant. Loss of one or more of the cotyledons before the food reserves are fully utilized can slow An understanding of how a soybean plant develops can help you early plant growth or result in death of the plant if photosynthetic make important management decisions. This section discusses leaf tissue is not formed quickly. various seed and plant parts, explains how the soybean plant develops utilizing standardized vegetative and reproductive stage descriptions which are used by the National Crop Insurance Services (NCIS), and describes some of the important factors which affect growth and development of the soybean plant. A soybean seed consists of a miniature plant attached to two nutrient storage reservoirs (cotyledons or seed halves) surrounded by a protective outer wrapper or seed coat called a testa (Figure 1). The cotyledons contain about 40% protein, 20% oil, and about 35% carbohydrate. These materials provide nutrients to the developing embryo during the germination process.
    [Show full text]
  • Pollen and Stamen Mimicry: the Alpine Flora As a Case Study
    Arthropod-Plant Interactions DOI 10.1007/s11829-017-9525-5 ORIGINAL PAPER Pollen and stamen mimicry: the alpine flora as a case study 1 1 1 1 Klaus Lunau • Sabine Konzmann • Lena Winter • Vanessa Kamphausen • Zong-Xin Ren2 Received: 1 June 2016 / Accepted: 6 April 2017 Ó The Author(s) 2017. This article is an open access publication Abstract Many melittophilous flowers display yellow and Dichogamous and diclinous species display pollen- and UV-absorbing floral guides that resemble the most com- stamen-imitating structures more often than non-dichoga- mon colour of pollen and anthers. The yellow coloured mous and non-diclinous species, respectively. The visual anthers and pollen and the similarly coloured flower guides similarity between the androecium and other floral organs are described as key features of a pollen and stamen is attributed to mimicry, i.e. deception caused by the flower mimicry system. In this study, we investigated the entire visitor’s inability to discriminate between model and angiosperm flora of the Alps with regard to visually dis- mimic, sensory exploitation, and signal standardisation played pollen and floral guides. All species were checked among floral morphs, flowering phases, and co-flowering for the presence of pollen- and stamen-imitating structures species. We critically discuss deviant pollen and stamen using colour photographs. Most flowering plants of the mimicry concepts and evaluate the frequent evolution of Alps display yellow pollen and at least 28% of the species pollen-imitating structures in view of the conflicting use of display pollen- or stamen-imitating structures. The most pollen for pollination in flowering plants and provision of frequent types of pollen and stamen imitations were pollen for offspring in bees.
    [Show full text]
  • Difference Between Radicle and Plumule Key Difference
    Difference Between Radicle and Plumule www.differencebetween.com Key Difference - Radicle vs Plumule All seeds contain embryos. Seed embryo creates a new plant after germination. Therefore the embryo is protected inside the seed by a hard covering called testa. The seed begins to grow when the right conditions are found such as moisture, warmth, sunlight, nutrient-rich soil etc. There are two main components of a plant; shoot and root. Stem, leaves and roots develop from different parts of the seed embryo. The radicle is the first part that emerges from the seed during the germination through the micropyle (seed pore). It makes the roots of the new plant. Plumule emerges after the radicle and makes the stem of the new seedling. Cotyledons form the first leaves of the seedling. The key difference between radicle and plumule is that radicle is the root forming part of the seed embryo while plume is the stem forming part of the seed embryo. The cotyledons of the seed embryo hold the radicle and the plume. What is Radicle? The radicle is the embryonic root of the plant. It is a part of the seedling that comes first from the seed during the germination. It comes out from the seed through the micropyle. Radicle grows downwards into the soil. A root cap protects the tip of the radicle. It absorbs water and nutrients and supplies to the leaves for starting photosynthesis. Embryonic stem or the hypocotyl is found above the radicle. Figure 01: Radicle Radicle emerges from the seed as a short white structure.
    [Show full text]
  • Flower Parts Diagram
    Parts of a Simple Flower Wild Geranium, Geranium maculatum Petal Pistil Stamen Sepal Pistil Stamen Stigma Style Anther Ovary Filament Definitions: Sepals - The outermost part of the flower, often green but sometimes looking like petals, that usually enclose the flower bud before it opens. Petals – The inner ring of the flower that tend to be brightly colored and often function to attract pollinators. Stamen – The male part of the flower that serves to produce pollen; it is composed of the pollen-bearing anther and the stalk-like filament. Pistil – The female part of the flower that typically consists of the stigma at the top which receives the pollen, the narrow style, and the ovary which contains ovules that will later develop into seeds. Parts of a Composite Flower Green and Gold, Chrysogonum virginianum Ray Flowers Disk Flowers Pistil Ligule Anther tube Fused petals Pistil Ovary Notes: Composite flowers can be made of all ray flowers that look like the petals of a ”normal” flower (e.g. dandelions), all small knobby disk flowers (e.g. thistles), or both types (like this one, Green and Gold). The single petal on a ray flower is called a ligule. On both ray and disk flowers, the pollen-producing anthers are typically fused together into a tube; on a disk flower, the petals are also typically fused. The pistil, commonly with two curling lobes, emerges as each disk or ray flower matures. In Green and Gold, the ray flowers are lacking stamens (pistillate)..
    [Show full text]