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The Poaceae family, also known as the grass family, is a large and ubiquitous family of monocotyledonous flowering plants. It represents the fifth largest plant family, with over 12,000 species across 771 genera. Grasses are distinguished by their hollow, cylindrical stems with nodes and internodes known as culms, as well as simple, ligulate leaves. They produce small, hypogynous flowers with three stamens and a single carpel. Common examples of economically important grasses are sugarcane and rice, which provide food, oil, medicine, fodder, and building materials.
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This document provides information about the Asteraceae family of flowering plants. It discusses the classification, distribution, morphological characteristics, types of flowers (disc and ray florets), and some economically important species of the family. Key points include that Asteraceae is one of the largest families, comprising around 950 genera and 20,000 species worldwide. It describes the distinguishing features of the family such as the composite flower head (capitulum) made up of disc and ray florets. Common genera mentioned are Helianthus, Eclipta, Tridax, Tagetes and Calendula.
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poaceae
This document provides information about the Poaceae family (grasses). It discusses the classification of Poaceae, distinguishing characteristics like hollow stems and simple leaves, and the cosmopolitan distribution of grasses. Important genera like wheat, maize, rice, sugarcane and pearl millet are noted. Uses of grasses as a food source, for industry, and medicinally are outlined. Red rot, a fungal disease of sugarcane caused by Glomerella tucumanensis, is also described.
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This document describes two plants from the Ranunculaceae family: Ranunculus scleratus and Delphinium ajacis. It provides details on their floral structure including parts, symmetry, aestivation and formula. For Ranunculus, it describes sepals, petals, stamens, and a superior ovary with basal placentation. For Delphinium, it notes zygomorphic symmetry and a gamopetalous corolla with posterior petals fused into a spur. Several medicinal uses of plants from the family are also listed.
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1. The document discusses the Magnoliaceae plant family, describing its geographical distribution, habitat, morphology, and key characteristics.
2. Trees and shrubs in this family have alternate simple leaves with deciduous stipules leaving a circular scar. Their large, bisexual flowers are solitary with numerous spirally arranged floral parts on an elongated thalamus.
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Articles are words used with nouns to indicate definiteness or indefiniteness. There are three articles: indefinite articles "a" and "an", and the definite article "the". The indefinite articles refer to nonspecific or unknown nouns, while the definite article refers to specific nouns. The choice between "a" and "an" depends on whether the following word begins with a vowel or consonant sound. The definite article "the" is used to talk about a particular noun. In some cases no article is needed, such as with plural uncountable nouns.
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Adverbs provide additional information about verbs, adjectives, other adverbs, and in some cases, entire sentences. There are several types of adverbs including:
1. Manner adverbs that describe how something is done (e.g. quickly, loudly).
2. Place adverbs that indicate location (e.g. upstairs, outside).
3. Time adverbs that specify when something occurs (e.g. tomorrow, last week).
4. Frequency adverbs that show how often something happens (e.g. always, never).
5. Degree adverbs that indicate extent or quantity (e.g. very, too).
Adverbs are often
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- 3. CONTENTS: • Introduction • Graphical distribution • Habit and habitat • Vegetative characters • Floral characters • Phytochemical constituents • Economical importance
- 4. ETYMOLOGY: • Name “Poaceae” was given by John Hendley in 1895. •It was given on the basis of tribe Poeae. • Term is derived from Greek word meaning fodder. •Genus Poa introduced by Carl Linnaeus.
- 5. INTRODUCTION: •Also known as Gramineae or Grass family. •Large and ubiquitous family of monocotyledonous flowering plants. •Represents the fifth largest plant family.
- 6. TAXONOMY: Kingdom : Plantae Phylum : Angiosperms Class : Monocotyledonae Order : Poales Family : Poaceae 12- subfamilies
- 7. TAXONOMY: Genera : 771 Species : 12,000
- 9. DISTINGUISHED CHARACTERS: Habit: Mostly Herbs Stem: Hollow and cylindrical in shape, nodes and internodes are present. Known as culm Leaf: Simple, ligulate, sessile leaves
- 10. CONTINUE… Flower: Small, hypogynous, zygomorphic, bisexual Androecium: 3-stamens Gynoecium: Monocarpellary
- 12. ECONOMICALLY: • Source of food • Source of oil and medicine like lemon grass • Used as fodder like Poa • Used as building material and furniture