EXAMPLES OF TRIMEROUS FLOWERS? 2. Draw the odd sepal by an arc at the posterior or anterior side depending upon its relation with the mother axis. Ten, diadelphous, nine united by the lower half of their filaments to form an incomplete tube around the pistil, tenth posterior stamen free, anthers bithecous, basifixed, dehiscence longitudinal and introrse, filaments nectariferous in their basal regions, inferior. Shimla Mirch). Privacy Policy3. The stamens are represented by the symbols of their anthers in one or more circles depending upon the condition present in the flower. Perianth 6, in two alternate whorls. Roasted groundnut seeds are eaten. This is a question and answer forum for students, teachers and general visitors for exchanging articles, answers and notes. Trimerous definition is - having the parts in threes —used of a flower and often written 3-merous. Mullatthi) are used as demulcent, expectorant and in treating gastric ulcers. 12. Ask question + 100. The apocarpous polycarpellary gynaecium is shown by double-lined circles in the centre according to the number of carpels present. Herbs, shrubs, a few’ trees (e.g., Solanum grandiflorum or Potato Tree) or climbcr (e.g., Solanum jasminoides or Potato Vine). The dried corms of Colchicum autumnale yield colchicine which is used in cytology for doubling the number of chromosomes (polyploidy). Vegetables are also obtained from Brinjal (Solanum melongena) and Bell Pepper (Capsicum frutescens var. In the case of syncarpous pistil, the transverse section of the ovary is drawn. Lusan), Indian Clover (Melilotus indica, vern. Number; polysepalous or gamosepalous (toothed, fid or partite); description of whorls if more than one. ‘The fossil flower, Lauranthus futabensis, gen. et sp. A flower in which the parts are arranged in twos is called dimerous; when the parts of the whorls are three, four or five, the flower is trimerous, tetramerous or pentamerous, respectively. Share Your PDF File Adventitious, fibrous or tuberous (e.g., Asparagus). (2) Leaves simple, exstipulate with sheathing bases and parallel venation (exception found in Smilax). Aerial stems of up to 10 metres height are found in Dracaena, Agave and Aloe dichotoma. nov. is assigned to the Lauraceae based on the regular trimerous organization of the perianth and androecium, and the valvate anthers.’ Masur), Green Gram (Vigna radiata = Phaseolus radiatus = P. aureus, vern. Biology, Flowering Plants, Plants, Structural Organisation. Type— solitary, simple or compound raceme, cyme, mixed or special. punineep and 6 more users found this answer helpful. ‘Some non-terminal flowers are dimerous, but otherwise identical to trimerous flowers.’ 1.1 Consisting of three joints or parts. Welcome to BiologyDiscussion! Potato (Solanum tuberosum) and Tomato (Lycopersicon lycopersicum= Lycopersicum esculentum) are the most common articles for cooking. Number; polypetalous or gamopetalous (toothed, fid or partite); description of whorls if more than one, outline of individual petals if free; form of corolla if united; aestivation valvate, twisted or imbricate; description of odd petal if posterior; special struc­tures like spur, veins, glands, if any; superior or inferior. The young shoots and root tubers of Asparagus species are cooked. Flower: Bracteate or ebracteate, pedicellate, regular, actinomorphic, zygomorphic in a few cases (e.g., Gilliesia), complete or incom­plete, perfect, unisexual in Smilax and Ruscus, hypogynous, generally pentacyclic, trimerous (rarely bimerous or tetramerous). Accordingly divide the outer circle (or circles) into parts and draw the arcs. Lv 7. Trimerous flowers are the type of flowers in which all parts of the flower are in three numbers. Order—Liliales. Tobacco is considered to be fumigatory, chewed, smoked or snuffed. Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants. Search on Google images for trimerous flowers, click on the pictures to go to the websites and get the names. In several cases the inflorescence possesses a leafless peduncle called scape. The fusion of the various parts is represented by suitable interconnecting lines. Lathyrus odoratus. Characters of Liliaceae: Herbs rarely shrubs, stem underground rhizome, corm or bulb; leaves alternate, flowers actinomorphic, trimerous, hypogynous, perianth 6 in two whorls of 3 each, free or fused; stamen 3+3, […] D) Pea The position of stamens vis a vis the petals or innermost perianth whorl should be carefully observed and maintained. They are unisexual and trimerous in Smilax and Ruscus. The monocots have some distinct features that include the presence of adventitious roots, simple leaves with parallel venation, and trimerous flowers. Give examples of the tetramerous and pentamerous flower. Orna­mentals. A few flowered long penduncled axillary raceme. The extra axillary position is formed due to the union of peduncle with the stem for some distance beyond the axil. Ram Datun) yield sarsaparilla like drug for purifying blood (curing boils), piles, leprosy, gonorrhea, etc. It is obtained from Xanthorrhoea and Dracaena species. Now press the flower to the mother axis and note whether the mother axis lies opposite a sepal, petal or tepal. Fruits of W. coagulens (which are com­monly used in preparing cheese) are useful in liver complaints and asthma. (ii) The seeds of Butea monosperma (Flame of the Forest, vern. For a similar purpose it can be added to shoe polishes and in etching solution for photomicrographic work. Lathyrus odoratus, treating leucoderma. 5, gamopetalous, variously shaped, campanulate, tubular infundibuliform, rotate, bilabiate in Schizanthus, plicate or folded like a fan in the bud, aestivation valvate inferior. Alfalfa (Medicago sativa, vern. One of the distinguishing features of monocots is that their flowers are trimerous, i.e., the flower parts are arranged or structured in multiples of three with one stigma and sepals less than or equal to the number of petals. Floral formula has its own limitations. Perfume yielding plants are Convallaria majalis (Lily of the Valley) and Hyacinthus orientalis. Sem, Lobia), Lablab (Lablab purpureus Dolichos lablab vern. ‘The fossil flower, Lauranthus futabensis, gen. et sp. Tobacco is intoxicant and stimulant but is habit forming and increases the incidence of heart trouble, lung cancer, and gum cancer, impotency in males and infant deformities in smoking mothers. A loculicidal capsule with endospermic seeds. 5, gamosepalous, usually campanulate, lobes unequal, rarely tubular (e.g., Cyamopsis), aestivation imbricate, odd sepal anterior, may be persistent, inferior. They are obtained from the leaves of Phormium tenax (New Zealand Hemp), Agave (e.g., A. Americana, Century Plant), Yucca (e.g., Y. gloriosa, Dagger Plant), Sansevieria (e.g., S. roxburghiana, Bowstring Hemp). Represent the mother axis by a dot. Class— Dicotyledoneae. Formerly indigo was obtained from the leaves of Indigofera tinctoria and I. sujfruticosa. (6) Androecium 5, polyandrous and epipetalous. Answer this question. Cauline and ramal, alternate (rarely opposite or whorled), rarely simple (e.g., Crotalaria), generally pinnate compound, stipulate, stipules foliaceous in Lathyrus aphaca (Wild Pea), leaf base pulvinate, leaves (e.g., Lathyrus aphaca) or leaflets (e.g., Pisum sativum, Lathyrus odoratus) modified into tendrils, two lateral leaflets of Tele­graph Plant (Desmodium motorium or D. gyrans) show autonomous movements. Example: Mustard, China rose, Brinjal. Examples of Trimerous flowers are daffodils, orchids, lilies and ireses. It is highly illustrative and describes most of the features of the flower and its parts like symmetry, regular or irregular, sexuality, number of the floral parts of each type, fusion among the similar parts (cohesion or connation) and with dissimilar parts (adhesion or adnation), aestivation of the floral parts, relation between the different floral organs, bithecous or monothecous nature of anthers, placentation, presence of nectaries, disc below the ovary, etc. Jawasa), solid or fistular, cylindrical or angular, may be hairy. The same terms are also used in the case of epicalyx which is described before the calyx when present. Sem), Pea (Pisum sativum), Gram (Cicer arietinum), Lentils (Lens culinaris — L. esculenta, vern. They are extracted from seeds of Arachis hypogea (Groundnut or Peanut) and Glycine max (Soybean). (3) Tri­merous, hypogynous and pentacyclic flowers. Their extract is also used to flavour medicines and tobacco. (5) Androecium 6 in two whorls, antitepalous, often epitepalous. TOS4. 5.138). Affinities 5. The seeds of Abrus precatorius (a climber) are employed as weights by jewellers. If the sepals are fused, join the adjacent arcs by small triangles. The fruits of some Physalis species (e.g., P. peruviana, Gooseberry, vern. The ovary in such flowers is said to be superior. Some of the floral formulae of the common flowers are as follows: (Ebracteate, Actinornorphic, Bisexual; Calyx- 5, free; Corolla- 5, free; Androecium numerous, free; Gynaecium— polycarpellary, apocarpous, superior). Still have questions? Generlly all monocot have trimarous merosity.i.e,liliaceae family .. famous example is lily for tetramerous evening primrose... Tetramerous include cruciferae family plant belong to cruciferae are radish musterd cauliflower cabbage etc...... pentamerous flowers are solanaceae, malvaceae,fabaceae....examples pea, apple Superior ovary or gynaecium is indicated by a bar below the number of carpels while the inferior condition is represented by a bar or horizontal line above the number of carpels, e.g., (Gynaecium bicarpellary, syncarpous, superior); (Gynaecium bicarpellary, syncar pous, inferior). Bracteate, ebracteolate, pedicellate, complete, perfect, irregular, medianly zygomorphic, pengynous, tetracyclic, pentamerous (except in gynaecium), papilionaceous, variously coloured, sweet smelling. Shrubs occur in Aloe, Agave, Yucca (Dagger Plant, Adam’s Needle), Dracaena (Dragon Plant), and Ruscus (Butcher’s Broom). The floral formula tells us about bracteate or ebracteate nature and the symmetry of the flower, its sexuality, number and union of sepals, petals, stamens and carpels, the insertion of stamens either on the thalamus or fusion with the petals (or perianth) and the superior and inferior position of the gynaecium. Subclass— Gamopetalae. Extra axillary, 5-8 flowered scorpioid cyme called rhipidium. Urd), Mat Bean (Vigna aconitifolia = Phaseolus aconitifolius, vern. Outline of individual sepals if free; form of calyx if united; aestivation valvate, twisted or imbricate; description of odd sepal if anterior; special structure if any; green or petaloid; caducous, deciduous or persistent; inferior or superior. Datura, etc. Similarly, at least one of these traits, parallel leaf veins, is far from universal among the monocots. Perianth: Name the types of nitrogenous bases present in the RNA. Rasbhari) are edible. ); stigma (minute or capitate, fid or lobed, surface smooth, rough or hairy); nectaries, disc and stalk below the ovary if present. (iv) Fresh leaf juice of Abrus precatorius (Jeweller’s Weights, Ratti) is useful in Fig. examples of medium textured plants. Examples of how to use “trimerous” in a sentence from the Cambridge Dictionary Labs Roots of Smilax zeylanica (Vern. Moth), Pigeon Pea (Cajanus cajan, vern. Tetramerous flowers have flower parts in fours; Cornus is an example, as are Brassicaceae It is cosmopolitan family of 250 genera and 4000 species, about 200 of which occur in India. Some herbs are annual (e.g., Asphodelus). Bulbs of Urginea maritima and Scilla yield raticide. (6) Corolla 5, petals unequal and differentiated into standard, 2 alae and a keel or carina made up of two partially fused petals. Nectaries and other structures are drawn according to their position by suitable lines. 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