What type of placentation is seen in sweet pea? (c) catkin inflorescence In case there are many stamens in the flower, they can be simplified and drawn as circles. (a) floral organs (c) A proteinaceous aleurone layer is present They are covered with root hair. (b) Utricularia (c) Free-central Nearly all are herbs, annuals in the tropical and biennials in the colder parts. At the same time there is a considerable saving of material in the construction of the corolla and other floral parts. (b) Utricularia leaves modify to form bladder-like structure The lower or older flowers possess longer stalks than the upper or younger ones, e.g., radish (Raphanus sativus), mustard (Brassica campestris), etc. (b) Oxalis Brassica (/ ˈ b r æ s ɪ k ə /) is a genus of plants in the mustard family (Brassicaceae).The members of the genus are informally known as cruciferous vegetables, cabbages, or mustard plants.Crops from this genus are sometimes called cole crops—derived from the Latin caulis, denoting the stem or stalk of a plant.. ), a special type of berry called hesperidium is present. Ovary is superior, placentation is free central and the ovules are atropous. (d) potato, 89. (c) tomato An example of edible underground stem is In this inflorescence there is a cup-shaped involucre, often provided with nectar secreting glands. Edible part of mango is Which one of the following statements is correct? (c) largest bud In unilocular ovary with a single ovule, the placentation is (c) Aleurone layer (b) multicarpellary apocarpous gynoecium bisexual flower, note stylopodium, swollen region at base of style (x 18); (E) bisexual flower after fall of stamens, in longi- tudinal section, note ovules (x 18); (F) bud, staminate flower (b) groundnut Diagrams can describe the ontogeny of flowers, or can show evolutionary relationships. (a) vexillary (d) oviparous germination, 63. A. Opuntia                            1. (c) flower "Floral formulae updated for routine inclusion in formal taxonomic descriptions", International Code of Nomenclature for algae, fungi, and plants, International Code of Nomenclature for Cultivated Plants, International Association for Plant Taxonomy, https://en.wikipedia.org/w/index.php?title=Floral_diagram&oldid=962153366, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, This page was last edited on 12 June 2020, at 11:40. This type of inflorescence is found in Acacia, Mimosa and Albizzia. The florets are arranged in a centripetal manner on the receptacle, i.e., the outer flowers are older and open earlier than the inner ones. (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. (a) root pocket (a) Solanum nigrum Racemose Inflorescence 2. An aggregate fruit is one which develops from A man without any knowledge of Botany thinks that it is a flower but actually it is an inflorescence The various forms of racemose inflorescence may be described under three heads. (a) endosperm Six stamens, polyandrous, tetradynamous in two whorls, the outer with two short lateral stamens and the inner with four long stamens arranged in two median pairs, anthers basifixed, introse, four green disc-like nectarines present at the base of the outer and inner paired stamens, inferior. (c) datura Explain the factors which cause dormancy. (d) china rose, 44. The placenta is attached to the developing seed near the (a) capitulum (c) reticulate venation 76. After reading this article you will learn about: 1. In this type of inflorescence the main axis does not end in a flower, but it grows continuously and develops flowers on its lateral sides in acropetal succession (i.e., the lower or outer flowers are older than the upper or inner ones). This type of opening of flowers is known as centrifugal. They have a root cap. Prohibited Content 3. This inflorescence is found only in monocotyledonous plants. There is no agreement on how floral diagrams should be drawn, it depends on the author whether it is just a rough representation, or whether structural details of the flower are included. (d) anywhere, 40. (c) cotyledons + endosperm In this type of inflorescence the main axis or receptacle becomes suppressed, and almost flat, and the flowers (also known as florets) are sessile (without stalk) so that they become crowded together on the flat surface of the receptacle. This type of inflorescence is known as sympodial cyme as found in some members of Solanaceae (e.g., Solanum nigrum). What are the general characters of bryophytes? In this type of inflorescence the receptacle forms a hollow cavity with an apical opening guarded by scales. (b) cladode, e.g. When inflorescence is depicted, the position of its main stem is illustrated by a crossed circle. (c) ground nut (Arachis hypogea) We use cookies to help provide and enhance our service and tailor content and ads. Bracts and bracteoles are commonly shown as arcs. (d) chalaza, 72. (b) Axile Some are al… V. Zone of elongation (b) epicarp Share Your Word File (c) onion Cabbage (Brassica oleracea var. Here the flowers develop in basipetal succession, i.e., the terminal flower is the oldest and the lateral ones younger. symmetry plane orientation). Which of the following is a group of rhizomes? (c) Endospermic monocot seeds — Maize Roots are well-developed and branched. (c) Petunia (a) phylloclade, e.g. Prenner et al. (a) gulmohur If you find that combination in a flower, then you know it is a member of the Mustard family. Potato is the major staple, underground plant product. (a) apple (a) If both Assertion and Reason are true and Reason is the correct explanation of Assertion. In Floral Diagrams by Ronse De Craene they consistently have a black fill and a little triangle on the outer side to distinguish them from the perianth. (a) Acacia Stem thorns C. Citrus                               3. (b) no cells containing chloroplast (a) Ten (a) passion flower (Passiflora) Verticillaster 6. The flowers are unisexual; the female flowers develop at the base of the cavity and the male flowers towards the apical pore. Capitata) is the Different parts of the flower are represented by their respective symbols. Define ray and disc florets. Welcome to BiologyDiscussion! (b) flower in infloresence Floral diagram is a graphic representation of flower structure. Assertion Seeds fails to germinate at very low and high temperature. (b) In Bryophyllum and roots arise from leaf The lemma is the lower, outer bract of the floret. The whole inflorescence looks like an umbel, but is readily distinguished from the latter by the opening of the middle flower first, e.g., Ak (Calotropis procera), Hamelia patens, etc. Of the statements, mark the correct answer as Privacy Policy 8. (d) All of these, 61. Four, polypetalous, cruciform, inferior; each petal yellow with entire or slightly extrose margin. (iii) With the main axis flattened, i.e., capitulum or head. (a) gulmohur (b) calyx, corolla and Androecium are all superior Eichler inspired later generation of scientists, including John Henry Schaffner. (d) Sarracenia, 27. It is the modification of (c) Ficus, Pothos and Lemna Propagation type:Fruit, partial fruit, seed Distribution: The species of this family are distributed throughout the world but are abundant in North Temperate Zone with Mediterranean as major center. Longest seed viability is found in Estivation can be accurately shown in the diagram. Reason Shoot growth is not effected by gravity. (c) groundnut (a) Brassicaceae — Tetramerous flowers, six stamens, bicarpellary gynoecium and siliqua type fruit (b) latuce (Lactuca sativa) The oldest flower is in the centre and ends the main floral axis (peduncle). A capitulum or head is characteristic of Asteraceae (Compositae) family, e.g., sunflower (Helianthus annuus), marigold (Tagetes indica), safflower (Carthamus tinctorius). Feed for Chick: The oil cakes of brassica species are also used in the feed for the chicken. The cymose inflorescence may be of four main types: (iii) Multiparous or polychasial cyme and. (c) rose The coconut water and the edible part of coconut are equivalent to (a) Smilax How many plants in the list given below have composite fruits that develop from an inflorescence? In India this family is represented by about 51 genera and 138 species distributed around temperate and alpine Himalaya. (a) sunflower Reason In cymose tap,root system, the primary root itself stops growing. (b) have edible parts, which are analogous organs Cyathium 5. It means root performs the function of assimilation and reproduction and the plant is In this type of inflorescence the peduncle bears a terminal flower and stops growing. (c) mesocarp (b) A-Valvate, B-Vexillary, C-Twisted, D-lmbricate C. Haustoria                                       3. (d) capsular fruits, 38. Study the following and choose the correct statements. Four, polysepalous, in two whorls, outer whorl, anterior-posterior, and the two lateral inner ones saccate; each sepal green, lanceolate, acute, and inferior. The plant body is divisible into roots, stem, leaves, flowers and fruits (Fig. The Wisconsin Fast Plant TM is a trademark name for a species of plant called Brassica rapa.Dr. Floral diagrams are also of didactic value.[1]:xiii. (d) Gynandropsis, 58. D. Cladodes                          4. Here the main axis ends in a flower and it produces only one lateral branch at a time ending in a flower. Which of the following monocot plants possesses exceptionally reticulate venation? ADVERTISEMENTS: Vegetative Characters: Habit: Nearly all are herbs, annuals in the tropical and biennials in the colder parts. This is a modified spike with a long and drooping axis bearing unisexual flowers, e.g., mulberry (Moras alba), birch (Betula spp. (b) Sesbania Also known as corymb of corymbs. (d) Asparagus, 16. (d) Bryophyllum leaves help in vegetative propagation, 23. (d) In tomato the fruit is a capsule, 97. It is called Match the following columns. (d) Utricularia, 7. [3] It usually shows the number of floral parts,[Note 2] their sizes, relative positions and fusion. ABCD ABCD

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