They are obtained from the stems of Crotalaria juncea (Sunn Hemp) and Sesbania species. Examples of Trimerous flowers are daffodils, orchids, lilies and ireses. The gynaecium is shown in the centre of the floral diagram. Leaf juice can kill lice. This website includes study notes, research papers, essays, articles and other allied information submitted by visitors like YOU. Explain its significance. Aeschynomene is aquatic. Babchi) are anthelmintic, diuretic and capable of curing skin diseases including leucoderma. 7 years ago. Rasbhari) are edible. The epipetalous or epiphyllous condition of androecium is represented by an arc which joins, androecium with the corolla or perianth as the case may be, e.g., С – A or P – A. (7) Gynoecium bicarpellary and syncarpous. Bicarpellary, syncarpous, ovary superior, carpels placed obliquely, generally bilocular (2-4 locular in Tomato, 4-locular in Datura due to false septa), placentation axile, ovules many in each loculus, placentae swollen, a nectariferous disc or lobes may be present, stigma capitate or lobed. Disclaimer Copyright, Share Your Knowledge The outer sterile floral whorls undifferentiated and are called perianth. Five, polypetalous, papilionaceous consisting of a large posterior petal called standard or vexillum, two lateral petals named wings or alae and two anterior petals which are free at base but are fused together at the upper anterior edges to form a boat shaped structure called keel or carina, the keel encloses the essential organs, aestivation descending imbricate, petals clawed, colour various, inferior. Piaz, Fig. Urd), Mat Bean (Vigna aconitifolia = Phaseolus aconitifolius, vern. (6) Corolla 5, petals unequal and differentiated into standard, 2 alae and a keel or carina made up of two partially fused petals. TOS4. It is obtained from Aeschynomene aspera (Indian Cork, vern. Some herbs are annual (e.g., Asphodelus). (1) Plants usually perennial herbs or shrubs. Families of Flowering Plants-NEET - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Radical, cauline and ramal, cauline and ramal show various types of phyllotaxy (alternate, opposite or whorled), exstipulate, stipulate in Smilax where the stipules are prolonged into tendrils, sessile or petiolate with sheathing leaf bases, venation parallel but reticulate in Smilax, leaves may be scaly, leathery, fleshy or modified into spines (e.g., Asparagus), leaf apex is tendrillar in Gloriosa. Datura, etc. - Diagram of the trimerous … Monocotyledon, or monocot for short, refers to one of two groups of flowering plants, or “angiosperms.” Most flowering plants are traditionally divided into two different categories: monocots and dicots. Formerly indigo was obtained from the leaves of Indigofera tinctoria and I. sujfruticosa. A number of legumes or pulses are obtained from fabaceae (papilionoideae) — Broad bean (Vicia faba, vern. Solanum nigrum (Black Nightshade, vern. Accordingly divide the outer circle (or circles) into parts and draw the arcs. 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. Nodules contain nitrogen fixing bacteria of the genus Rhizobium. A word of caution: when classifying flowers into monocots or dicots, remember that there are always exceptions to the rule. 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. (5) Calyx 5, gamoespalous with odd sepal anterior. If the number is up to five or so, actual number of parts is written. 5, gamopetalous (5- partite), rotate, white, inferior. Example: Mustard, China rose, Brinjal. Extra axillary, 5-8 flowered scorpioid cyme called rhipidium. A number of plants are grown as ornamentals, e.g., Petunia, Schizanthus (Butterfly Flower), Cestrum nocturnum (Night Jasmine), Brunfelsia hopeana (Yesterday today tomorrow). Draw petals in the inner whorl (or whorls). (4) Calyx and corolla undifferentiated and called perianth. The epipetalous or epiphyllous condition is shown by joining the symbols of stamens with petals or tepals either in the middle or in alternate position (in between two). It is cosmopolitan family of 250 genera and 4000 species, about 200 of which occur in India. Perianth: Stamens by double kidney shaped symbol (bithecous anther) and single kidney shaped symbol (monothecous anther); the gynaecium is shown as is observed in a transverse section. Aerial stems of up to 10 metres height are found in Dracaena, Agave and Aloe dichotoma. Having flower parts, such as petals, sepals, and stamens, in sets of three. Jawasa), solid or fistular, cylindrical or angular, may be hairy. Water left after boiling Potato tubers is supposed to cure skin bums and pimples. Lathyrus odoratus, treating leucoderma. In several cases the inflorescence possesses a leafless peduncle called scape. Corms of Colchicum luteum are used in the treatment of rheumatism, gout, liver and spleen diseases. 5.140. Important Types. Share Your PPT File. Trimerous definition is - having the parts in threes —used of a flower and often written 3-merous. 6, in two whorls, opposite the tepals, polyandrous, epiphyllous (adnate with the tepals only at the base), exserted, filaments slightly dilated at the base, anthers long and dorsifixed, dehiscence longitudinal, inferior. (4) Flower zygomorphic and papilionaceous. Economic Importance 4. Aloe barbadensis gives a drug aloin which is laxative and is sometimes applied on boils and burns. The juice of Garlic (Allium sativum) is useful against bronchitis, flatulence, blood pressure and gout. Share Your PDF File Kalihari) have properties to cure leprosy, piles, gonorrhoea, scorpion bites, etc. (6) Androecium 5, polyandrous and epipetalous. Endospermic or non-endospermic; monocotyledonous or dicotyledonous shape and size. Series— Bicarpellatae. More than one whorl or group of a type of floral organs is represented by using the sign plus and writing the actual number of parts in each group or whorl, e.g., K5-(5 sepals), K2+2-(4 sepals in two groups or whorls of two each), A∞ — (indefinite or numerous stamens). Iridaceae have three standards and three falls, Hemerocallis have two sets of three petals, Orchids have three sepals and three petals, etc. The plants occur widely in subtropical, tropical and temperate regions. Trimerous flowers have sepals, petals etc in threes. A very minute joint at the base of the claw-joint, in most Tetramerous and Trimerous beetles. Type 1. Search on Google images for trimerous flowers, click on the pictures to go to the websites and get the names. 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. 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. Class— Dicotyledoneae. It is symbolic representation of floral symmetry, presence or absence, number, cohesion and adhesion of various parts. Ebracteate, ebracteolate, complete, perfect, regular, actinomorphic, cyclic, pentamerous in the outer three whorls, hypogynous, white. examples of medium textured plants. Simple or compound, type if compound, deciduous or persistent, type of phyllotaxy like spiral (alternate), opposite or whorled, sessile, subsesile or petiolate, stipulate or exstipulate, ligulate if ligule present, shape, margin, apex, venation (umcostate or multicostate, reticulate or parallel), modification if any. - Diagram of the trimerous symmetrical flower of Iris. 5, rarely 4, (e.g., Salpiglossis) or 2 (Schizanthus), free, epieptalous, often unequal, anthers bithecous, basifixed or dorsifixed, dehiscence longitudinal (e.g., Petunia) or porous (e.g., Solanum), inferior. heart outlined. They are extracted from seeds of Arachis hypogea (Groundnut or Peanut) and Glycine max (Soybean). Lathyrus ordoratus (Sweet Pea), Clitoria ternata (Butterfly Pea), Colutea, Lupinus. punineep and 6 more users found this answer helpful. In this article we will discuss about the description and families of flowering plants. The male reproductive whorl of the flower is the androecium and the … (iii) Seeds of Psoralea corylifolia (vern. Gum is also secreted by Butea monosperma and Astragalus gummifer. Soianaceae has 90 genera and about 2000 species, out of which about 60 are represented in India. Tap or adventitious root system, any speciality or modification. Describe like calyx and corolla, substituting the word sepalous or petalous with phyllous. Free e-mail watchdog. Generally the stamens alternate with the petals. Ornamentals. (2) Bicollateral vascular bundles in the stem. Mako or Makoh, Fig. Ram Datun) yield sarsaparilla like drug for purifying blood (curing boils), piles, leprosy, gonorrhea, etc. Perianth : 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. 5, gamosepalous campanulate or tubular, persistent, accrescent (enlarging in fruit, e.g., Physalis, Withania,), aestivation valvate, hairy, inferior. Bicarpellary, syncarpous, carpels (ovary) placed obliquely, ovary superior,bilocular, placentation axile, placentae swollen, many ovules in each loculus, style long, twisted and hairy at the base, stigma green bifid and capitate. (5) Androecium 6 in two whorls, antitepalous, often epitepalous. D) Pea 2. EXAMPLES OF TRIMEROUS FLOWERS? Senji), Guar (Cyamopsis tetragonaloba), Berseem (Trifolium alexandrium) and Shaftal or Shatala (Trifolium resupinatum). 12. Answer this question. The dried corms of Colchicum autumnale yield colchicine which is used in cytology for doubling the number of chromosomes (polyploidy). 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. nov. is assigned to the Lauraceae based on the regular trimerous organization of the perianth and androecium, and the valvate anthers.’ A few flowered long penduncled axillary raceme. Draw a few faint circles below it depending upon the number of different floral organs. 2.8K views ); stigma (minute or capitate, fid or lobed, surface smooth, rough or hairy); nectaries, disc and stalk below the ovary if present. The parts of a flower can be classified into four whorls. Adventitious, fibrous or tuberous (e.g., Asparagus). Specimen copy of Resonance Distance Learning program for NEET. Xanthorrhoea of Australia is tree-like. Affinities 5. It includes 420 genera and 7000 species, with 754 in India. The fusion of the various parts is represented by suitable interconnecting lines. Mark S, JPAA. (iv) Fresh leaf juice of Abrus precatorius (Jeweller’s Weights, Ratti) is useful in Fig. Angurshafa) yield belladona for relieving pain externally, cough and excessive perspiration internally and atropine for dilating pupil. Potato (Solanum tuberosum) and Tomato (Lycopersicon lycopersicum= Lycopersicum esculentum) are the most common articles for cooking. Herbs (e.g., Melilotus), shrubs (e.g., Tephrosia), climbers (e.g., Pisum, Lathyrus), twiners (e.g., Lablab) and trees (e.g., Dalbergia) found in mesophytic, xerophytic or halophytic habitats. Sem), Pea (Pisum sativum), Gram (Cicer arietinum), Lentils (Lens culinaris — L. esculenta, vern. Recemose, sometimes solitary (e.g., Tulipa, Gloriosa) or umbellate condensed cymes (e.g., Onion). (9) Placentation axile with swollen palcentae. Mung), Black Gram (Vigna or Phaseolus mungo, vern. Source(s): https://owly.im/a7Wpk. Tweet. Bracteate or ebracteate; bracteolate or ebracteolate; pedicellate (pedicel if hairy, coloured or jointed), sub-sessile or sessile; complete or incomplete; perfect (hermaphrodite), imperfect (unisexual, staminate or pistillate) or neuter; regular or irregular; actinornorphic, zygomorphic or asymmetrical; bimerous, trimerous, tetramerous, pentamerous or heteromerous; cyclic, hemicyclic (spirocyclic) or spiral; hypogynous, perigynous or epigynous; any peculiar form like papilionaceous, cruciform, bilabiate, etc. Monocarpellary, ovary superior, flattened, elongated, hairy, unilocular, placentation marginal with many ovules present in two alternating rows, shortly stalked, i.e., borne on a short gynophore, style at an angle to the ovary, slightly flattened and hairy, stigma terminal and hairy. Ebracteate or bracteate, pedicellate, complete, perfect, regular, actinornorphic, rarely zygomorphic (e.g., Salpiglossis, Schizanthus), hypogynous, pentamerous in the outer three whorls, cyclic. 5, gamopetalous, variously shaped, campanulate, tubular infundibuliform, rotate, bilabiate in Schizanthus, plicate or folded like a fan in the bud, aestivation valvate inferior. (5) Corolla 5, gamopetalous, often plicate in bud. Glycyrrhizin, a glycoside of the root, is 50 times sweeter than sugar. 0 0. Henbane (Hyoscyamus niger, vern. Occasionally, the flowers are zygomorphic (e.g., Haworthict, Gillesia). The symmetry which is most commonly met with is trimerous and pentamerous - the former occurring generally among monocotyledons, the latter among dicotyledons. Basal position of stamens vis a vis the petals or innermost perianth whorl be!, Mat Bean ( Vicia faba, vern towards the anterior side outside. 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