inflorescence definition biology

A panicle is like a branched raceme, and each branch has more than one flower on it. In this arrangement, multiple flowers grow along a long, unbranched axis. Get exclusive access to content from our 1768 First Edition with your subscription. Spathe: A leaf-like bract or sheath that envelops an inflorescence. Spike with a fleshy axis, enclosed by one or more large bracts called spathes, e.g., Musa, Pistia, etc. first two years of college and save thousands off your degree. Please select which sections you would like to print: Corrections? In an umbel, each of the pedicels initiates from about the same point at the tip of the peduncle, giving the appearance of an umbrella-like shape, as in the wax flowers (Hoya). What is Inflorescence An inflorescence is categorized on the basis of the arrangement of flowers on a main axis (peduncle) and by the timing of its flowering (determinate and indeterminate). Did you know… We have over 220 college Create your account, Already registered? We can categorize the type of inflorescence based on how the flowers are arranged on the main stem that supports the inflorescence, which is called the peduncle, and the timing of flowering. Flowers produce gametes, undergo fertilization, and form seeds while inflorescence increases the chance of cross-pollination. Racemose or Indefinite or Indeterminate Type of Inflorescence: ADVERTISEMENTS: The arrangement in which the youngest flower is present near the apex […] Types of Inflorescence 2. Flowers & Multiple Fruits Of The Mulberry Family, See Spathe Bracts Of The Chilean Wine Palm. Our mission is to provide an online platform to help students to share notes in Biology. Sciences, Culinary Arts and Personal A corymb is a raceme in which the pedicels of the lower flowers are longer than those of the upper flowers so that the inflorescence has a flat-topped appearance overall, as in hawthorn (Crataegus). A panicle is a branched raceme in which each branch has more than one flower, as in the astilbe (Astilbe). Anyone can earn Register free for online tutoring session to clear your doubts. Inflorescence Definition “Inflorescence is the arrangement of flowers on the floral axis.” What is Inflorescence? The most advanced evolutionary inflorescent is found in ? Spadix: A thick, fleshy spike of unisexual, apetalous flowers, often surrounded by a vase-shaped or funnel-like modified leaf or spathe which is often brightly colored. Flowers are arranged in basipetalous manner, i.e., the terminal flower is oldest and young flowers are present on lower side. Share Your PPT File. In determinate (cymose) In determinate inflorescence the oldest flower is located in the center of the cluster and grows at the end of the main supporting stem, the peduncle. Each flower is borne on a short stalk, called a pedicel. [Includes simple and compound umbels. (With Methods)| Industrial Microbiology, How is Cheese Made Step by Step: Principles, Production and Process, Enzyme Production and Purification: Extraction & Separation Methods | Industrial Microbiology, Fermentation of Olives: Process, Control, Problems, Abnormalities and Developments, The best answers are voted up and rise to the top. The edible part of a pineapple is: a. the exocarp and endocarp b. the exocarp and mesocarp c. the torus of the flower d. an inflorescence. credit by exam that is accepted by over 1,500 colleges and universities. Panicle: A branched or compound raceme (i.e. What Job Can You Get With a Major in Biology? We will also look at the various inflorescence types in different categories. A dichasium is one unit of a cyme and is characterized by a stunted central flower and two lateral flowers on elongated pedicels, as in the wood stichwort (species Stellaria nemorum). There are several types of indeterminate florescence. When peduncle bears many pedicellate flowers in an acropetal manner, e.g., Delphiniumajacis, Veronica, etc. Each cluster of flowers in this type of inflorescence represents dichasial cyme, as in members of Labiatae. A head (capitulum) is a short dense spike in which the flowers are borne directly on a broad, flat peduncle, giving the inflorescence the appearance of a single flower, as in the dandelion (Taraxacum). flashcard sets, {{courseNav.course.topics.length}} chapters | Racemose Inflorescence 2. Share Your Word File Updates? imaginable degree, area of As biology students, you must be aware of the term inflorescence. What are the three important components of biodiversity? Flower and inflorescence are two structures produced by the sexual reproduction of flowering plants. Inflorescence in the largest biology dictionary online. A head is a short, dense spike with flowers growing directly on the peduncle, which is flat and broad. terminal bud continues to produce new flowers). Thus, the inflorescence appears to look like a single flower. What is a Flower – Definition, Structure, Importance 2. Have you ever walked through a field and seen a variety of plants and wildflowers? Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. A raceme with sessile flowers, e.g., Adhatoda vasica, Callistemon, etc. Short flower stalks that grow off of the peduncle are called pedicels. Get access risk-free for 30 days, So, in this case the growing point does not stop the growth and forms continuously the lateral flowers. Our editors will review what you’ve submitted and determine whether to revise the article. Learn about Inflorescence and Flowers topic of biology in details explained by subject experts on vedantu.com. The simplest classification includes two groups: determinate inflorescence and indeterminate inflorescence. Each flower consists of an awned bract, three stamens and an ovary with two feathery stigmas, e.g., Triticum. All rights reserved. | 20 Britannia Kids Holiday Bundle! Describe how the flower is attached to the stem. This spadix also happens to smell just like rotting flesh to attract beetles and flies which serve to pollinate it. A. Dahlia, B. Calotropis, C. Saliva, D. Yucca, Working Scholars® Bringing Tuition-Free College to the Community. Quiz & Worksheet - What is Inflorescence? How are waste products excreted in amoeba? © copyright 2003-2020 Study.com. This website includes study notes, research papers, essays, articles and other allied information submitted by visitors like YOU. Solitary: A single flower on a caulescent or acaulescent stem. The types pf inflorescence are: Raceme: When peduncle bears many pedicellate flowers in an acropetal manner, e.g., Delphiniumajacis, Veronica, etc. In addition, it is an essential part of the bouquet, decorations, celebrations, garden, rituals, etc. Inflorescence definition is - the mode of development and arrangement of flowers on an axis. Polychasium or Pleiochasium or Multiparous Cyme: When the peduncle bears a single terminal flower and just below it are present more than two lateral branches bearing terminal flowers, e.g., Calotropis procera. In indeterminate inflorescences, the youngest flowers are at the top of an elongated axis or on the centre of a truncated axis. Note: Inflorescences with youngest flower at the end of the main axis (rachis) are called "indeterminate" (i.e. All Rights Reserved. Inflorescence, in a flowering plant, a cluster of flowers on a branch or a system of branches. Study.com has thousands of articles about every Get the unbiased info you need to find the right school. This is a question and answer forum for students, teachers and general visitors for exchanging articles, answers and notes. Inflorescence Definitions. An example of a raceme is found in the snapdragon (Antirrhinum majus). In plant biology, an inflorescence is a grouping or cluster of flowers on a branch or a network of branches. It is usually pendulous, and the perianth may be reduced or absent, as in oaks (Quercus). When peduncle bears a terminal flower and a pair of opposite lateral branches which also bear terminal flowers, e.g., Stellaria media. A 'catkin' is a specialized type of spike in which the flowers are either all males or all females. Hypanthodium. just create an account. Enrolling in a course lets you earn progress by passing quizzes and exams. A spadix is a spike borne on a fleshy stem and is common in the family Araceae (e.g., Philodendron). 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