Which organelle is known as “power house” of the cell? Inflorescence: Type # 1. The first of main floral axis gives rise to two lateral branches and these branches and the succeeding branches bear only one branch each on alternate sides. Thus within var. Synonym. Also known as spadix of spadices. The flowers may be pedicellate (stalked) or sessile (without stalk). Taxonomy: It is a natural hybrid formed by a cross of Ocimum americanum with O. basilicum. Life form Broadleaf plant . Synonym. Ocimum basilicum L. were analyzed by GC/EI-MS. Fifty components were identified in the inflorescence and leaf essential oils of the basil plants, accounting for 98.8 % and 99.9 % of the total quantified components respectively. Ocimum americanum is a small erect plant, with a strong aromatic smell. Also known as spike of spikelets. Typical example-cauliflower. gratissimum inflorescence structure and stem, leaf and calyx indumentum form a continuum of variation. This is a question and answer forum for students, teachers and general visitors for exchanging articles, answers and notes. Fruits: Fruits are composed of tiny, 1-seeded nutlets. They are arranged along a spike inflorescence. The stalk of the individual flower of the inflorescence is called the pedicel. Ocimum, Salvia; Cyathium: involucre of bracts form cup shape structure, single female flower is … Flowers: flowers are borne on terminal verticle, 5-7 mm in length . Two varieties based on the types of O. gratissimum and either O. urticifolium or O. trichodon could be recognised as there are large morphological differences between the extremes of this continuum. The typical examples are found in Poaceae (Gramineae) family such as-wheat, barley, sorghum, oats, etc. Each male flower is reduced to a solitary stalked stamen. What is its function? Here the main axis ends in a flower and it produces only one lateral branch at a time ending in a flower. Racemose Inflorescence: In this type of inflorescence the main axis does not end in a flower, but it … Each floret has at its base a lemma and palea. Hypanthodium. Name the types of nitrogenous bases present in the RNA. Before sharing your knowledge on this site, please read the following pages: 1. Calyx: There are 5 calyx and it is greenish in color. ), latjira (Achyranthes aspera), etc. Flowers are sessile and appear in a false whorl or vertically around the stem. The oldest flowers develop in the centre and youngest towards the periphery of the disc, such arrangement is known as centrifugal. Leiden, the Netherlands: Backhuys Publishers. Ocimum / ˈ ɒ s ɪ m ə m / is a genus of aromatic annual and perennial herbs and shrubs in the family Lamiaceae, native to the tropical and warm temperate regions of all 6 inhabited continents, with the greatest number of species in Africa. Types of inflorescence are - racemose, cymose, special types of inflorescence and mixed inflorescence. Cultivation: This hybrid is best grown in containers. Thus within var. At the same time there is a considerable saving of material in the construction of the corolla and other floral parts. This website includes study notes, research papers, essays, articles and other allied information submitted by visitors like YOU. The floral parts borne in the axil of lemma. Ocimum brachiatum Blume . This is also a modification of spike inflorescence having a fleshy axis, which remains enclosed by one or more large, often brightly coloured bracts, the spathes, e.g., in members of Araceae, Musaceae and Palmaceae. de Guzman, C.C. E.g. Simple Inflorescence A simple inflorescence maybe racemose or cymose according to the mode of branching. Mixed Inflorescence. Just above the glumes, there is series of florets, partly enclosed by them. Small clusters of 3 flowers are arranged in pairs along a spike-like, racemose inflorescence (8-10 cm long). The flowers make a globose head, which is also called glomerule. Leaves are arranged in pairs with adjacent pairs perpendicular to one another. Ocimum canum Sims . Leaves are broadly elliptical with a slightly toothed leaf margin (1.5-6 cm long, 1-2.5 cm wide). When the main axis of raceme is branched and the lateral branches bear the flowers, the inflorescence is known as compound raceme or panicle, e.g., neem (Azadirachta indica), gul-mohar (Delonix regia), etc. The examples can be seen in poinsettia (Euphorbia), Pedilanthus, etc. Different types of inflorescence that are observed are – 1. Flowers and glumes are arranged on the spikelet in two opposite rows. This type of work is extremely important in order to develop the full economic and medicinal potential of plant species. 1. Our mission is to provide an online platform to help students to share notes in Biology. The fruit is composed of 4 tiny, one-seeded nutlets. Out of nine genotypes O. gratissimum (Ajowan and Rum tulsi), O. tenuiflorum (Krishna and Radha tulsi) and O. kilimandscharicum showed branched inflorescence and rest of the species showed unbranched or simple type of inflorescence. This type of inflorescence is known as sympodial cyme as found in some members of Solanaceae (e.g., Solanum nigrum). Inflorescence of Flower. Compound Raceme or Panicle . Cymose Inflorescence 3. In this type of inflorescence the main axis (peduncle) branches repeatedly once or twice in racemose or cymose manner. Ocimum canum var. Holy basil is native to the Indian subcontinent and … The cymose inflorescence may be of four main types: (iii) Multiparous or polychasial cyme and. In this inflorescence the primary axis remains comparatively short, and it bears at its tip a group of flowers which possess pedicels or stalks of more or less equal lengths so that the flowers are seen to spread out from a common point. Inflorescence: Type 1. Content Guidelines 2. 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It bears sessile or sub-sessile flowers on it. Welcome to the India Biodiversity Portal - A repository of information designed to harness and disseminate collective intelligence on the biodiversity of the Indian subcontinent. The lower or older flowers possess longer stalks than the upper or younger ones, e.g., radish (Raphanus sativus), mustard (Brassica campestris), etc. Cultivation: This hybrid is best grown in containers. This is also known as true cyme or compound dichasium. Botanical name : Ocimum sanctum Family : Lamiaceae Vernacular names : Hindi, Gujarati, Bengali : Tulsi Marathi : Tulasa Tamil : Thulasi Telugu : Tulasi Malayalam : Trittavu Ocimum sanctum is a 30-75 cm high erect herb which is grown practically in every part of India. It consists of two clusters that develop from each of the two opposite axils of the leaves. Flowers attracts Small Mason bees and Sweat bees, pollens. Tulasi or Ocimum Sanctum belongs to family Lamiaceae and its flowers are tiny, purple and inflorescence is a verticillaster and forms a spike that is 12-14 cm in length. Readers should always consult his/her physician before using or consuming a plant for medicinal purposes. Cyathium 5. Here the main axis (peduncle) remains branched in a racemose manner and each branch bears sessile and unisexual flowers. It has simple, opposite and decussate leaves, along a square stem, lanceolate oval in shape. It is evident that each stamen is a single male flower from the facts that it is articulated to a stalk and that it possesses a scaly bract at the base. Therefore, the correct answer is option C. Inflorescence type and habit: Terminal inflorescence, the cymes structure is thyrse. Floral Bracts: The bracts are caudiform in shape and numerous in number. Racemose Inflorescence: Inflorescence: Type # 2. each node of the inflorescence with 2 flowers and upper calyx lobes broad-triangular, not wing-margined (vs. O. basilicum, with each node of the inflorescence with 4 or more flowers and upper calyx lobe suborbicular, with winged margins that are decurrent on the calyx tube). The examples are common in Palmaceae (Palmae) family. ... becoming minutely pubescent on the inflorescence axis, usually with young shoots in the axils of the leaves Perennial up to 0.6 m tall with some woody tissue at the stem bases. Where are the pollen grains formed in the flower? The leaf surface is pubescent (densely covered in short hairs). Ocimum sanctum, Ocimum tomentosum: Common Name: Holy Basil, Sacred Basil, 圣罗勒 ... Inflorescence Type Remarks: Racemose: Fruit, Seed and Spore. The palea (also known as superior palea) often with two longitudinal ridges (keels or nerves), stands between the lemma and the rachilla. 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