The spikelets are arranged in various ways on the main axis called rachilla. Cronquist (1968) considered that the families are also related on account of some chemical data. What is a mushroom shaped gland? 8. Alternate, simple, distichous, exstipulate, sessile, ligulate (absent in Echinochloa), leaf base forming tubular sheath, sheath open, surrounding internode incompletely, ligule is present at the junction of the lamina and sheath, entire, hairy or rough, linear, parallel venation. Floral Formula. Uncommonly, flowers may have no axis of symmetry at all, typically because their parts are spirally arranged. In a spikelet one floret is perfect i.e. Important Types. Protected by Lemma and Palea. How many different kinds of animals are there? The family is divided into 2 sub-families: Spikelets one to many flowered; mature spikelets break up and fall above the persistent glumes leaving them intact, if spikelets falling entire then not 2-flowered or if 2-flowered falling entire; the glumes and lemmas all membranous with wrinkled seed. The family has been divided on economic basis as follows: Triticum aestivum, Oryza sativa, Zea mays (Maize), Hordeum vulgare (Jaw), Sorghum vulgare (Jowar), Avena sativa (Oats), Pennisetum typhoides (Bajra) are cultivated for cereals and food grains. Root System: Taproot system. They are terrestrial, annual herbs. Oils: Some plants give wood oil, artist oil and other drying oils. Zea mays: Habit: An annual cultivated crop plant. Brainly User Brainly User This family is also known as Poaceae family. Floral formula and floral diagram. The latter are commonly referred to collectively as grass. Many species occur in early successional communities. The Virtual Floral Formula is a Web bite thai lets students practice their floral structure interpretation skills using detailed dissection photographs of the flowers of 12 species. ... Floral diagram with floral formula (Oryza sativa or rice): Some important plants of the family: Oryza sativa (Rice) Triticum aestivum (wheat) Zea mays (maize) Exploded spikelet of brome grass. Daneben finden zahlreiche Arten lokale Verwendung als Heu, Dachdeckmaterial oder in der Parfümindustrie. The 2 sepals are modified into lodicules. Monocarpellary, ovary superior, unilocular with only one ovule. The members are cosmopolitan in distribution. A floral formula is a symbolic representation of different floral parts, their numbers, arrangement pattern and how they are related. They are typically monocotyledonous. ISSN 0002-7685, eleclronk ISSN 1938-4211. Share Your PDF File
Represented by 2 scales called lodicules, fleshy and small. MCQs on Floral Formula. Family: Poaceae. 14. Each spikelet has two flowers-one pedicellate other sessile; each has a pair of bracts the inferior and superior palea, zygomorphic. Perigynous flowers are found in (a) Rose (b) China rose (c) Cucumber (d) … Above the glumes a series of florets are present. Since true flower parts in grasses are inconsequential in identification, spikelet arrangement will be used for description of the inflorescence type. 12 Reproductive characters. They all share the floral formula P4 A4 G1 The lower one is called first glume and the upper is called second glume. Saccharaum officinarum 6. (A-l) Capsella bursa-pas- Huge family, most important economic crops. They are typically monocotyledonous. Content Guidelines 2. Poaceae (Gramineae) - the Grass Family. The Poaceae (also called Gramineae or true grasses) are a large and nearly ubiquitous family of monocotyledonous flowering plants. Share Your Word File
Poaceae or Gramineae is a large and nearly ubiquitous family of monocotyledonous flowering plants known as grasses. Poaceae 1-Floral formula. Fruit-Achene or nut. The APG IV system of 2016 (unchanged from the APG III system of 2009, the APG II system of 2003 and the APG system of 1998) places the family in the order Commelinales, in the commelinid clade, in the monocots. Share Your PPT File. The flowers of Poaceae are small, lack petals, and are pollinated by wind. Rhynchelytrum repens, Cortaderia selloana and some species of the tribe Bambusoideae are ornamentals. also yield oil. Stamens six, polyandrous, anthers linear, versatile, introrse. A floral formula is a written shorthand used to represent the structure of a flower using the standard set of symbols shown at the right. Poaceae 1-Floral formula. In India the family is represented by 180 species and 30 genera. 15. This website includes study notes, research papers, essays, articles and other allied information submitted by visitors like YOU. Poaceae or Gramineae: Grass Family Characteristics, Floral formula, Floral Diagram And Economic Importance March 26, 2020 Poaceae or Gramineae Diagnostic characters of Poaceae Kingdom: Plantae. Top Answer. PreserveArticles.com is an online article publishing site that helps you to submit your knowledge so that it may be preserved for eternity. (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 plants represent all the 3 ecological types as hydrophytes, xerophytes and mesophytes. The staple food grains of the population of world is derived from Oryza sativa (Rice) and Triticum aestivum (Wheat). The leaves of Cassia senna and Cassia obovata giN c a drug called Senna. lemma. ROSACEAE; Rose family – General characters , floral formula , floral diagram , economic importance and common species Syed Muhmmad Muzammil Gilani. 1. It is a small family of heterostylous aquatic plants, occurring in tropical and subtropical waters. This family is also known as Poaceae family. Triticum aestivum 4. The flowers of Poaceae are small, lack petals, and are pollinated by wind. There are 3 stamens that hang down and the anthers shed pollen into the wind. The family Poaceae (Gramineae) closely resembles the family Cyperaceae and the two families have been placed in same order Glumiflorae by Engler and Prantl, and Glumaceae by Bentham and Hooker. The family consists of plants that are generally cultivated as crop plants for food. Stem: Erect, cylindrical, herbaceous, solid, distinct nodes and internodes, smooth, green. By contrast, sedge spikelets are often (but not always) composed of flowers arranged in tight spirals within which each flower is subtended by a single scale. Answer. Alternate, simple leaves. maize). Floral formula: capsule, silique-like capsule, silique Distribution and ecology: Cosmopolitan, most diverse in the Mediterranean region, southwestern and central Asia, and western North America. Stamens 3, polyandrous, filament long, anthers dorsifixed when young and versatile when mature. Some are in compound spikes as in wheat, others are racenes as in Fastuna while still others are panicles as in oats. The syncarpous gynoecium has 2 carpels, the ovary is superior, the styles are feather-like to catch pollen from the wind, and the ovary is 1-locular with 1 basal ovule. Which organelle is known as “power house” of the cell? Many grasses as Cynodon dactylon, Panicum, Cymbopogon, Agrostis, Poa are grown for fodder. Leaf: Alternate, simple, long ligule present, linear, entire margin, green, multicostate parallel venation, sheathing leaf … It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns and pasture. Flower formulas for di erent plant families, mostly from Middle Russia Family Formula Acoraceae BP 6A 6G (3) Actinidiaceae BK 5C 5A 1G (1) Adoxaceae (Adoxa) B[K 2C 4A 4 2]_[K 3C 5A 5 2]G-(2)-Adoxaceae (Sambucus) BK (5)C (5)A 5G-(2)-Aizoaceae (Mollugo) BP (5)A 5G (3) Alismataceae BK 3C 3A 6_1G 1 Amaranthaceae BP 3 5A 3 5G (2) Amaryllidaceae BP 3+3A 3+3G (3) Anacardiaceae BK 5C 5A 10 5G (1 … Plant monoecious, diclinous; two kinds of flowers in different inflorescences; male in staminate and female in pistillate inflorescence respectively. Answer Now and help others. Usually stamens 3, rarely 6 (Bambusa, Oryza) and one in various species of Anrostis, Lepturus; polyandrous, filaments long, anthers dithecous, versatile, linear, extrorse; pollen grains dry. Besides these a number of grasses are grown to form fine lawns, play grounds etc. glumes. The Virtual Floral Formula. Floral formula- Comparison # Cyperaceae: 1. 7. Poaceae is by far the most economically important family of angiosperms. This family has greater importance than all other families of the flowering plants. Atom The Poaceae (also called Gramineae or true grasses) are a large and nearly ubiquitous family of monocotyledonous flowering plants. The family consists of plants that are generally cultivated as crop plants for food. Mostly herbs, stem jointed, fistular, cylindrical; leaves simple, alternate, sheathing, sheath open, ligulate; inflorescence compound spike; flowers zygomorphic, hypogynous, protected by palea; perianth represented by 2 or 3 minute scales (lodicules); stamens 3, versatile; carpel one, style 2 or 3, stigmas feathery, basal placentation; fruit caryopsis; testa fused with pericarp. Incomplete:( those flower which is missing one/two whorls). Floral Formula and Important Families of Flowering Plants, Class 11 Biology NCERT Solutions. Phragmites karka, Cymbopogon schoenanthus etc. All of these flowers are from species in the Proteaceae. It consists of 620 genera and 6,000 species. Floral characters. 1. Pistil-Monocarpellary, one loculed, one ovuled. Flowers are arranged in distinct inflorescence. Answer. Pulses are rich in proteins. 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Are present ( Presenting calyx and corolla ) forming perianth, rosaceae, Rose family platform help! Its inflorescence by Claviceps purpurea for production of Ergot and for extraction of ergotine constructed in ToolBook SumTotal! The grasses of natural grassland and species cultivated in lawns and pasture herbaceous, solid distinct!