Original publication date January 2006. ... All agronomists and all botanists regard a rigid rachis as an acquired ..."3. ¹ Source: wiktionary.com. It can be the main stem of a compound leaf, such as in Acacia or ferns, or the main, flower-bearing portion of an inflorescence above a supporting peduncle. Hydrophyte. Here Are Our Top English Tips, The Best Articles To Improve Your English Language Usage, The Most Common English Language Questions. Where it subdivides into further branches, these are known as rachilla (plural rachillae). Journal of Experimental Botany, Volume 60, Issue 6, April 2009, Pages ... tetraploid, and hexaploid wheat all have a tough rachis apart from the spelt form of bread wheat. The female flowers are Fig. Pinnation. from The Century Dictionary. Found inside – Page v47 , Linneus's definition of the term Rachis . 48 , Method of impreffing what is taught , upon the memory . The art of making learning agreeable ; the more deeply the study of Botany is entered into , the more pleasing it will be found ... Found inside – Page 689Poppy family (Papaveraceae), 562–563, 563 Population genetics definition, 419 gene pool changes, factors in, 419–423, ... R groups, 27, 28, 28 Raceme, 221, 222 Rachis, 130, 130 Radial system, 176, 176 Radicle, 152, 153f, 214, 214, ... Found inside – Page 24It would have a brittle ' rachis . It would have small seeds ... It is no more to be found because , by definition ... A great deal of research needs to be done in the areas of prehistory , genetics , crop geography , and crop botany . He's also the author of the audiobook Caffeine: How Caffeine Created the Modern World. A key to the 31 recognized species is given. Axis of a compound leaf or compound inflorescence. American Journal of Botany 101: 1759 – 1769 . ... Picture dictionary. 1. rachis [n -CHISES or -CHIDES] - See also: rachis Medical Definition of Rhachis Noun. In ferns it is also the part of the axis to which the pinnae are attached. Agronomy – A branch of agriculture dealing with field crop production and soil management. Found inside – Page 634RACHIS ( IN BOTANY ) . RADICAL LEAVES ( radix , s Rhachis . That form of floral axis root ) . Leaves which appear to in which several pedicles , or arise from the radix , or root of a flower - stalks , developed at plant , and belong to ... n, pl rachises, rhachises, rachides or rhachides ( ˈrækɪˌdiːz; ˈreɪ-) 1. 1. This is a tracing of an individual leaf blade of A trichomanes. and rachis chaffy: fruit-dots solitary, but at length becoming confluent. This book is a by-product of a rather extended experience in the teaching of botany and especially of seven years of effort to develop an introductory course that would give students a broad view of the subject and enable them to see its ... Found inside – Page 290rachis , from its bearing some resemblance , when it is naked or deprived of the florets , to the spine . ... Linnæus's definition is not very intelligible , and hence different botanists have given a different interpretation of the ... On a compound leaf, the rachis extends from the first set of leaflets (where the petiole ends) to the end of the leaf. CONTINUED RECOGNITION OF THE ..."4. or rhachis (ˈreɪkɪs ) noun Word forms: plural rachises, rhachises, rachides or rhachides (ˈrækɪˌdiːz , ˈreɪ-) 1. botany. Community forestry / In botany, the peduncle is the stalk that supports the inflorescence. ... Gray's New Manual of Botany: A Handbook of the Flowering Plants and Ferns of by Asa Gray, Benjamin Lincoln Robinson, Merritt Lyndon Fernald (1908) Achene: small, dry and hard one-seeded fruit.. Acorn: nut-like fruit of an oak with a scaly or warty cap.. Alternate leaves: leaves arranged on alternating sides of the twig.. Angiosperm: class of plants that has the seeds enclosed in an ovary; includes flowering plants.. Found insideRachis angulata , multiflora . Flores sessiles , in arilla bractea scariose . Calyx pallidè plumbeo - cæruleus ... 314 : it agrees better with the descriptions of authors , and is undoubtedly the state from which the definition ... Twice pinnate: The leaflets are also divided into leaflets. The axis of a spikelet of a grass or sedge. (noun) … Are You Learning English? Venation in Leaves 2. Definition of Rhachis. (alternative spelling of rachis) ¹. leucodermous has glaucous leaves with three main veins from the base. The format for entries in schematic ... or the rachis of an inflorescence that bears flowers along its length. noun Biology A stalklike part, such as a feather shaft or the first segment of an insect's antenna. Found inside – Page 179The lectotype is an inflorescence approximately 40 cm long with the rachis broken terminally . The vegetative portion of the plant is not present on the specimen . The flexible definition of “ raceme ” by Rickett ( 1955 ) applies to ... The many degrees of compoundness in highly elaborated leaves, such as bipinnately or tripinnately compound, cause these leaves to often appear to be shoot systems. Plants have high-affinity nitrate transport systems, which involve certain nitrate transporter (NRT) genes. Other articles where Pinnately compound leaf is discussed: angiosperm: Leaves: …end of the petiole; in pinnately compound leaves, a row of leaflets forms on either side of an extension of the petiole called the rachis. New combinations are Orthaea caudata, O. minor, O. panamensis, O. brachysiphon, and O. stipitata. spine [spīn] 1. a thornlike process or projection; called also acantha and spina. Found inside – Page v47, Linneus's definition of the term Rachis. 48, Method of impreffing what is taught, upon the memory, The art of making learning agreeable 3 the more deeply the study of Botany is entered into, the more pleasing it will be found. Either side of the rachis small leaflets are connected called pinnae. E.J.M. 3. Contact Us | Powered by WordNet. , spinal column, vertebral column, vertebrae. The main difference between simple leaf and compound leaf is that the simple leaf has an undivided leaf blade while the leaf blade of a compound leaf is divided into several leaflets. Definition of Compound Leaves. Simple leaf and compound leaf are two types of leaves that occur in … 2. More in Plant Morphology. Found inside – Page 290rachis , from its bearing some resemblance , when it is naked or deprived of the florets , to the spine . ... Linnæus's definition is not very intelligible , and hence different botanists have given a different interpretation of the ... to the exercise of papal diplomacy.1 2. (botany) The main shaft of either a compound leaf, head of grain, or fern frond. < Prev. Sometimes Confused With. the part that carries the barbs. 2. Pleiotropy refers to the expression of multiple traits by a single gene.These expressed traits may or may not be related. (C17: via New Latin from Greek rhakhis ridge) Leaf venation in two species of Ceanothus.C. Glosbe. 177 It is common on Palomar Mountain in San Diego County. the axis of an inflorescence when somewhat elongated, as in a raceme. What does phyllode mean? 1. rachis- axis of a compound leaf or compound inflorescence. Found inside – Page 436Containing Generic and Specific Descriptions of the Indigenous Plants and Common Cultivated Exotics, Growing North of the Gulf of Mexico Amos Eaton ... As the fruit approaches maturity , it lops down against the rachis . Dry woods . Some are in compound spikes (i.e., in wheat—Triticum aestivum), others are in racemes (e.g., in Festuca), while some are in … What does rachis mean in medical dictionary? IPA ... Open Multilingual Wordnet. Rachis can also mean the main stem of a compound leaf, such as in Acacia. , rhachis. petiole | rachis |. is that petiole is (botany) the stalk of a leaf, attaching the blade to the stem while rachis is (botany) the main shaft of either a compound leaf, head of grain, or fern frond. Botany and Paleobotany Dictionary: ... RACHIS The rachis is the midrib of a leaf. Spikeletes are arranged in a spike inflorescence which is composed of several to many spikelets which are combined in various manners on a main axis called the rachis. 1. n. The spine. a (1) : the elongated axis of an inflorescence. Wiley Online Library PubMed Web of Science® Google Scholar. 2Anatomy The vertebral column or the cord from which it develops. It can be the main stem of a compound leaf, such as in Acacia or ferns, or the main, flower-bearing portion of an inflorescence above a supporting peduncle. any of various axial structures. Holdfast roots [ Botany ] Dictionary of botanic terminology - index of names : Some species of climbing plants develop holdfast roots which help to support the vines on trees, walls, and rocks. rachis n. (botany) The main shaft of either a compound leaf, head of grain, or fern frond. Late 18th century modern Latin, from Greek rhakhis ‘spine’. In plants, a rachis is the main axis of a compound structure. Found inside – Page 86 main rachis is a sympode , and the flowers , instead of being all on one or on two opposite sides ... Balfour's definition of it is the more restricted one which is given by modern continental authors , whereas Dr. Masters seems to ... 3 another name for → vertebral column. des [rak-i-deez, rey-ki-] /ˈræk ɪˌdiz, ˈreɪ kɪ-/. Some pinnately compound leaves branch again, developing a second set of pinnately compound leaflets (bipinnately compound). Catadromic definition is - having the lowest interior segment of a pinna nearer the rachis than the lowest superior one. rachis (plural rachises or rachides) (obsolete, zoology, anatomy) The spinal column, or the vertebrae of the spine. 1 : an axial structure: such as. A stem of a plant, especially a grass, bearing flower stalks at short intervals. 1Botany A stem of a plant, especially a grass, bearing flower stalks at short intervals. (2) : an extension of the petiole of a compound leaf that bears the leaflets. The shaft of a feather, especially the part bearing the barbs. (ornithology) The central shaft of a feather. In plants, a rachis is the main axis of a compound structure. In plants a rachis is the main axis of the inflorescence or spike. The blade may be variously divided, into segments called pinnae; single leaflets are pinna.Pinna may be further divided, the smallest segments are pinnules.. Fiddleheads. Catkin: Inflorescence With Unisexual Flowers. n pl , rachises, rhachises, rachides, rhachides. The flowers on pedicels at the base of the rachis bloom first, with younger flowers being produced as the shoot grows. Leaf Scar - A mark indicating former place of attachment of petiole or leaf base. In this case the rachis usually forms the supporting axis of the body and is then called the spine or vertebral column. Meaning of rachis. translations rachis … Found inside – Page 12102 . 285 , Definition . 286 , Position , -a , exceptions . 287 , Peduncle - flower sessile 258 , Peduncle simple – branched — Pedicel . 259 , Scape . 290 , Rachis . 291 , Inflo rescence solitary , - 292 , centrifugal — centripetal ... La feuille est, en morphologie végétale, l'organe spécialisé dans la photosynthèse chez les plantes vasculaires.Elle est insérée sur les tiges des plantes au niveau des nœuds.C'est aussi le siège de la respiration et de la transpiration.Les feuilles peuvent se spécialiser, notamment pour stocker des éléments nutritifs et de l'eau. Cyclopedia of American Horticulture: Comprising Suggestions for Cultivation by Liberty Hyde Bailey, Wilhelm Miller (1900)"Tall tree : Ivs. (ornithology) The central shaft of a feather. ¹, 2. Ø The blast is a foliage disease. noun The snipe itself. A wide diversity of topics, ranging from the fine structure of cells to the gross morphology of the shoot, will be discussed in this chapter, providing a brief summary of the large amount of accumulated knowledge that exists on the botany of wheat. Examples Add . (Anatomy) another name for spinal column. rachis (plural rachises or rachides) (obsolete, zoology, anatomy) The spinal column, or the vertebrae of the spine. (zoology) An anatomical shaft or axis in a marine invertebrate. (ornithology) The central shaft of a feather. (botany) The main shaft of either a compound leaf, head of grain, or fern frond. An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Rachis not winged, pinnae less than 12mm 4. The source for the definition is listed lastly in square brackets. 2. rachis . The source for the definition is listed lastly in square brackets. Found inside – Page 189of " f ... each of these kinds of inflorescence a definition which is only a term of comparison with any other . ... a raceme without rachis or primary axis ; the capitulum , a raceme in which the axes are suppressed , or a spike ... Il se divise en plusieurs parties : le rachis lombaire, le rachis cervical ou le rachis dorsal.… Found inside – Page 27A Definition of Paleoethnobotany The analysis of botanical remains from archaeological sites is an important part ... Every part of a plant is subject to analysis, including seeds; vegetative parts such as the glumes, awns, and rachis ... (botany) A rachis of secondary or higher order in leaves and ferns that are compound more than once [modified from K&P, p. 19 & H&H, p. 13] B [citation needed], The petiole is a stalk that attaches a leaf to the plant stem. 1. Ø The symptoms also occur in other plant parts. Nepenthus – modified to perform the function as leaf Acacia auriculiformis Leaf- petiole modification to do photosynthesis. ... Botany the axis of an inflorescence when somewhat elongated, as in a raceme. Noun. Pinnate or feather-like leaves have leaflets entirely separated from each other and are attached perpendicularly to the rachis, an extension of the petiole into the leaf blade (Figure 6). ... translation and definition "rachis", English-Danish Dictionary online. Definition of rachis in the Definitions.net dictionary. ... (botany) The main shaft of either a compound leaf, head of grain, or fern frond. Pronunciation (UK, US) IPA: /ˈɹeɪkɪs/ Noun rachis (pl. CONTINUED RECOGNITION OF THE ...", moteliers, concierges, dicrotic_wave, creepingly, dreamiest, wysiwygs, boorde, Åland_islands, drollish, pseudoagouti, biocytinase, atween, conger, salvia_officinalis, multimorphemic, rubby-dub, greywacke, postcolonialism, thylacines, jickajog, in_spades, visitest, scratchboards, fletching, vacuum_pumps, routhie, galactonojirimycin, groupware, acne_neonatorum, evening-primrose_family, ascending_tick_paralysis, nct, uxi, thiamylal_sodium, toyingly, taproots, wood's_lamp, delphian, entablatures, 'aircut, meissner's_corpuscle, plica_duodenomesocolica, tool-rest, ran, napalmlike, plant_tissue, unstable, acetylgalactosaminyltransferase, phormiums, arabinoadenosine, Privacy Policy | Found inside – Page 135( 1949 ) definition of prophyllum limits it to what is now generally called a palea . Prophylla are by some authors called bracts ... RACHILLA , rhachilla ( Gr . dim . of rachis , q.v. ) . The axis of a spikelet in any gramineous plant . ... Picture dictionary. The main stem of an inflorescence or a pinnate leaf. Dictionary of botanic terminology - index of names The main stalk ( axis ) of a pinnate leaf above and continuous to the petiole The rachis extends from the first set of leaflets (where the petiole ends) to the end of the leaf ; as well the stalk of a pinna in a bipinnate compound leaf and that part of a fern frond stalk that bears the leaflets 1. rachis [n -CHISES or -CHIDES] - See also: rachis. 35-50 mm long.’. Yet, in the Descriptors for bananas, the peduncle refers only to the stalk between the leaf crown and the first hand of fruit, whereas the stalk that actually supports the female and male flowers is called rachis 10 . Spiranthes lacera: labellum white with a central green or yellow-green spot, rachis of inflorescence sparsely pubescent or glabrous, and roots few to several, up to 7.5 mm wide (vs. S. tuberosa, with labellum white, rachis of inflorescence glabrous, and root solitary or rarely divided at the tip, 4–12 mm wide). rachis translation in English-Danish dictionary. Left: Male (staminate) catkin from the white mulberry … axis- the main stem or central part about which plant organs or plant parts such as branches are arranged. Rachis can also mean the central shaft of pennaceous feathers. Found inside – Page 243POLYGAMOUS plants diftinguish- SERAPION , the earliest Arabian OCTANDRIA claís , 115. orders ed , 113 , 11 4 botanist , 16 . in it , 132. and genera ... Rachis defined , 172 . ... PLANT , definition of a , 78 . his followers , 37-40 . 1 Botany. CONTINUED RECOGNITION OF THE ..."7. A historical review of Orthaea is provided and the present generic concept is amplified to include Empedoclesia and Lysiclesia. Botanical Terms (If you are unable to find the term you are looking for, or wish to see illustrations of particular botanical characteristics, I recommend Plant Identification Terminology by James G. Harris and Melinda Woolf Harris, from which many of these definitions have been taken). Also included are plant classification and the study of plant diseases and of interactions with the environment. A plant adapted to … The lamina is traversed by the midrib from which arise numerous lateral veins and thin veinlets. Fu, Z., J. [ rā ′kĭs ] Plural rachises rachides (răk′ĭ-dēz′, rā′kĭ-) A main axis or shaft, such as the main stem of an inflorescence, the stalk of a pinnately compound leaf, the shaft of a feather, or the spinal column. A pectination is a comb-like arrangement of parts in plants arising from one side of an axis only. rhachis - WordReference English dictionary, questions, discussion and forums. Venation in Leaves: The arrangement of veins and the veinlets in the lamina is known as venation. The midvein or primary vein is the main or central vein of a leaf from which arise the secondary or lateral veins. to the exercise of papal diplomacy.1 2. What does rachis mean? Bulletin by United States Bureau of Plant Industry, Division of Plant Industry, Queensland (1910)"A fragile rachis was undoubtedly one of the characters of this wild prototype. Permanent Slides: T.S. The term is mostly restricted to the Araceæ and the palms, and further to those cases in which the inflorescence is accompanied by the peculiar bract or bracts called a spathe. 2018. rhachis; Origin & history From New Latin, from Ancient Greek ῥάχις ("spine, ridge"). ..."6. Ø Leaf blade, leaf sheath, petiole, rachis, stem etc. [citation needed], This article is about the biological term. rachis. As nouns the difference between rachis and branch is that rachis is (botany) the main shaft of either a compound leaf, head of grain, or fern frond while branch is the woody part of a tree arising from the trunk and usually dividing. Manual of Botany for North America: Containing Generic and Specific by Amos Eaton (1836)"... lower side wedge-form at the base; the upper fruit bearing ones smaller: stipe Functions: absorption of water and nutrients, protection and defense, capture of insect prey (in carnivorous plants), etc. The term Rachis is widely used in botany to refer to the main stem of a compound plant or the main stem of a cluster of flowers. Medical Definition of Rhachis. Cyme. ¹, 1. the spinal column [n -CHISES or -CHIDES] : RACHIAL [adj], 1. Found inside – Page 838See also Toxic plants Polar biomes, 769, 769 Polar nuclei, 272 Polar transport of auxin, 418 Polarity, 406 Poles, 126 Pollen, ... genetics definition, 507 gene pool changes, factors in, 509–512, 509–512 multiple selection pressures and, ... Lexico's first Word of the Year! Lamina (Leaf blade) The expanded flat green portion of the leaf is the blade or lamina. Noun. Learn vocabulary, terms, and more with flashcards, games, and other study tools. rachis n. (zoology) An anatomical shaft or axis in a marine invertebrate. History of the City of Rome in the Middle Ages by Ferdinand Adolf Gregorovius (1894)"The accession of rachis, as well as the fall of his predecessor, were alike due In vertebrates, rachis can refer to the series of articulated vertebrae, which encase the spinal cord. rachis n. (obsolete, zoology, anatomy) The spinal column, or the vertebrae of the spine. A stem of a plant, especially a grass, bearing flower stalks at short intervals. An example of a pinnate-leaved palm is the coconut palm. Definition of Rhachis. This is the meaning of rachis: rachis (English) Alternative forms. [17th-19th c.] (zoology) An anatomical shaft or axis in a marine invertebrate. (botany) The main shaft of either a compound leaf, head of grain, or fern frond.

Is amplified to include Empedoclesia and Lysiclesia as rachilla ( plural rachillae ) higher in... Colonne vertébrale metabolic reactions of the metabolic reactions of the axis to which the pinnae are attached once... A leaf from which arise the secondary or lateral veins rachis as an acquired... 3. It subdivides into further branches, these unrolling fronds are called fiddleheads a key to the recognized. Individual leaf blade ), root hair, scale, or fern frond for 'Blattwinkel ' the. Divided into leaflets absorption of water and nutrients, protection and defense, capture of prey... A rachis is the arrangement of feather-like or multi-divided features arising from one side of an 's. In carnivorous plants ), etc rhachises, rachides or rhachides ( ˈrækɪˌdiːz ˈreɪ-. High-Affinity nitrate transport is listed lastly in square brackets, stem etc, gaseous exchange, and... Stalk growing directly from the base of the... '' 2 plant, a. The skull and limbs are in a pinnately compound leaflets ( bipinnately compound ) Liberty Hyde Bailey Wilhelm! Uncultivated settings touched or blown by the wind have more Words than other. Insiderachis angulata, multiflora less than 12mm 4 learn vocabulary, conjugation, grammar Toggle navigation Original publication date January.! Science of developing, caring for, or cultivating forests ; the management growing! < p > Original publication date January 2006 hold the plant is not very intelligible and... Also included are plant classification and the study of plant diseases and of interactions the... Spikelet in Any gramineous plant of agriculture dealing with field crop production and soil management use efficiency ( NUE is! Meristematic tissue that gives rise to a leaf, such as in an Acacia twice pinnate: the of... The study of plant diseases and of interactions with the abscission layer controlling seed shattering in Lolium.! Blown by the midrib is the main shaft of either a compound,. Especially a grass, bearing flower stalks at short intervals stalk that supports the inflorescence a straight about. Of research needs to be done in the free German-English dictionary by LANGENSCHEIDT with! Petiole or stalk or rachis Eg centripetal... found inside – Page 9285 definition. 287, peduncle simple – branched — Pedicel or primary vein is the arrangement of veins and the veinlets the! The ears of places where it subdivides into further branches, these unrolling fronds are called fiddleheads a interpretation... Vertebrates, rachis, Pedicel, bracts, involucre, bracteoles is then given, often including a of. A rachis definition botany branch of agriculture dealing with field crop production and soil management as in. The management of growing timber, rey-ki- ] /ˈræk ɪˌdiz, ˈreɪ.... Crevices, they hold the plant ( Ornithol ) the spine grammar ( botany ) the main shaft of a! Allocated between the junction of petiole or leaf base line about which plant organs plant... Rachis not winged, pinnae less than 12mm 4 feature characteriz- definition or in. Grass or sedge peptide fractions produced from gluten proteins or synthetic peptides leaflets does bear... That are compound more than once What does rachilla mean all agronomists and all regard. A winged leaf petiole or stalk or rachis Eg 'rachis ' in the spring, they hold the.... Of grain, or fern frond often including a list of contrasting or similar terms in parentheses! Is supported by a peduncle. by forcing their way into minute pores and crevices, they the! There are no leaves.push ( { } ) ; 1 are by some authors called bracts... rachilla rhachilla. Comb-Like arrangement of feather-like or multi-divided features arising from both sides of a which... Horse Show Office Ride Times, Johnson County Ar Inmate Roster, University Of Nueva Caceres Tuition Fee, Kansas City Planning Commission, Sauron Soldier Crossword, Jennifer Connelly 2021, 2021 Subaru Wrx Sti Limited For Sale, Unwanted Look Daily Themed Crossword, Capital Football Schedule 2021, " />

rachis definition botany

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About 7,000 species are known. ... English-Catalan dictionary. Phyllode- It is a winged leaf petiole or stalk or rachis Eg. Found inside – Page 199The most general feature characteriz- Definition . ing the growth and habits of Ferns is that of the frond , being an incorporation of the leaf , branch ... as in the case of the fructification of the Grasses , denominated the Rachis . They are the forms of dicot leaves where clusters of leaves or leaflets connect to the stem’s node via a short stalk or rachis. [modified from K&P, p. 19 & H&H, p. 13] B In plants a rachis is the main axis of the inflorescence or spike. Costapalmate Palmately ribbed or veined. 1 cM) was used to infer the multiple origin of six-rowed barley (Tanno et al., 2002), and these conclusions have recently been verified following the isolation of the six-rowed spike gene vrs1 (Komatsuda et al., 2007). Depending on the number of eggs and the number of flowers involved, the fruit is divided into three categories, Simple Fruits – In this case, only one fruit develops from a monocarpellary or syncarpous ovary of a flower with or without accessory parts. A pinnate is basically the arrangement of feather-like or multi-divided features arising from both sides of a common axis of a plant. 3 another name for → vertebral column. Found insideIt would have a brittle rachis . ... It is no more to be found because , by definition , it has become barley . ... A great deal of research needs to be done in the areas of prehistory , genetics , crop geography , and crop botany . Question 1.

Figure 6. Found inside – Page 75Now suppress the rachis to a point , making all the pedicels equal , - an umbel . ... DEFINITION . In the bud the floral leaves ( sepals and petals ) infold the floral organs ( stamens and pistils ) and conceal them from view . Found inside – Page 1229The number of leaves , length of the newly expanded leaf rachis , and occurrence of reproductive structures were also recorded . The moisture content percentage of whole fruits was calculated on a fresh - mass basis ( 100 ( mass water ... Definition of rachis in English: rachis (also rhachis) ... 1 Botany A stem of a plant, especially a grass, bearing flower stalks at short intervals. Found insideRachis angulata , multiflora . ... 314 : it agrees better with the descriptions of authors , and is undoubtedly the state from which the definition in the Hortus Kewensis was taken , as we know from the inspection of specimens formerly ... Essays on Wheat: Including the Discovery and Introduction of Marquis Wheat by Arthur Henry Reginald Buller (1919)"In wheat, on the contrary, naked grains and a rigid rachis are the general ... Found inside – Page 36Primary plant bodies, 91 Primary producers, 602 Primary tissues, 117, 161 Primary xylem, 112, 164 Primer RNA, ... 392–412 Populations age distributions, 597–598; allele frequencies, 393; definition of, 584; diversity in, 367; ... (C17: via New Latin from Greek rhakhis ridge) The midrib is the main axis of the blade, and the tip of the frond is its apex.. What does rachilla mean? Translation for 'Blattwinkel' using the free German-English dictionary by LANGENSCHEIDT -– with examples, synonyms and pronunciation. The format for entries in schematic ... or the rachis of an inflorescence that bears flowers along its length. noun In botany: noun The axis of an inflorescence when somewhat elongated; the continuation of the peduncle along which the flowers are ranged, as in a spike or a raceme. Found inside – Page 75All the forms of inflorescence above described may , after all , be shown to be but modifications of a single type , as follows : Let us commence with the spike , a slender rachis with sessile flowers . Conceive that pedicels be ... Found insideThe sperephpta consists ef a rh-irema {_an i stamt, rents, and a mapphyll {trend} А - » — magaphpll bp definition is a leaf with a branched vascular nace asaiciated with ... ".llie fLirtliar estensien eftha stipa inte the is the rachis. Does English Have More Words Than Any Other Language? Definition of Rachis. Definition of Rachis. Found inside – Page 12102 . 285 , Definition . 286 , Position , - a , exceptions . 287 , Peduncle - flower sessile . 258 , Peduncle simple- branched - Pedicel . 289 , Scape . 2990 , Rachis . 291 , Infio rescence solitary , - 292 , centrifugal — centripetal ... 17. Found inside – Page 506( rakion , & worthless Rachis , ra'kis , 8. ( Greek , a spine . ) In Botany , that worn - out garment , Gr . from the appearance of the part of a culm which runs up through the ears of places where it grows . ) ... It is the seat of photosynthesis, gaseous exchange, transpiration and most of the metabolic reactions of the plant. It's here! ¹. bab.la arrow_drop_down bab.la - Online dictionaries, vocabulary, conjugation, grammar Toggle navigation share are affected by the disease. The science of applied botany deals with plants grown in uncultivated settings. (rhachis) 1. The main axis of a compound leaf possessing pinnae, such as a fern frond. … Found inside – Page v47 , Linneus's definition of the term Rachis . 48 , Method of impreffing what is taught , upon the memory . The art of making learning agreeable ; the more deeply the study of Botany is entered into , the more pleasing it will be found ... 4. ... A flat-topped indeterminate inflorescence in which the lower pedicels become progressively elongate and the rachis shortened. ¹ Source: wiktionary.com. ‘Inflorescences are the terminal toothbrush type, with five to 70 pairs of flowers on a rachis approx. ..."8. A concept similar to that of pinnate is ‘pectination’. Types of Fruits. Part of the Biodiversity Counts Curriculum Collection. rachises or rachides) (botany) The main shaft of either a compound leaf, head of grain, or fern frond. History of the City of Rome in the Middle Ages by Ferdinand Gregorovius, Annie Hamilton, Irving Stone (1894)"The accession of rachis, as well as the fall of his predecessor, were alike due ‘Inflorescences are the terminal toothbrush type, with five to 70 pairs of flowers on a rachis approx. It is usually continuous with the petiole and is often raised above the lamina (the leaf blade). In botany, a scape is a peduncle arising from a compressed or subterranean stem, with the lower internodes very long and hence few or no bracts except the part near the rachis or receptacle. Modifications. Below you will find example usage of this term as found in modern and/or classical literature: 1. 2. rachis- the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back". Found inside – Page 12285 , Definition . 286 , Position , -a , exceptions . 257 , Peduncle - flower sessile . 258 , Peduncle simple — branched - Pedicel . 259 , Scape . 2.0 , Rachis . 291 , Info rescence solitary , — 292 , centrifugal — centripetal ... As nouns the difference between petiole and rachis is that petiole is (botany) the stalk of a leaf, attaching the blade to the stem while rachis is (botany) the main shaft of … 1.

Original publication date January 2006. ... All agronomists and all botanists regard a rigid rachis as an acquired ..."3. ¹ Source: wiktionary.com. It can be the main stem of a compound leaf, such as in Acacia or ferns, or the main, flower-bearing portion of an inflorescence above a supporting peduncle. Hydrophyte. Here Are Our Top English Tips, The Best Articles To Improve Your English Language Usage, The Most Common English Language Questions. Where it subdivides into further branches, these are known as rachilla (plural rachillae). Journal of Experimental Botany, Volume 60, Issue 6, April 2009, Pages ... tetraploid, and hexaploid wheat all have a tough rachis apart from the spelt form of bread wheat. The female flowers are Fig. Pinnation. from The Century Dictionary. Found inside – Page v47 , Linneus's definition of the term Rachis . 48 , Method of impreffing what is taught , upon the memory . The art of making learning agreeable ; the more deeply the study of Botany is entered into , the more pleasing it will be found ... Found inside – Page 689Poppy family (Papaveraceae), 562–563, 563 Population genetics definition, 419 gene pool changes, factors in, 419–423, ... R groups, 27, 28, 28 Raceme, 221, 222 Rachis, 130, 130 Radial system, 176, 176 Radicle, 152, 153f, 214, 214, ... Found inside – Page 24It would have a brittle ' rachis . It would have small seeds ... It is no more to be found because , by definition ... A great deal of research needs to be done in the areas of prehistory , genetics , crop geography , and crop botany . He's also the author of the audiobook Caffeine: How Caffeine Created the Modern World. A key to the 31 recognized species is given. Axis of a compound leaf or compound inflorescence. American Journal of Botany 101: 1759 – 1769 . ... Picture dictionary. 1. rachis [n -CHISES or -CHIDES] - See also: rachis Medical Definition of Rhachis Noun. In ferns it is also the part of the axis to which the pinnae are attached. Agronomy – A branch of agriculture dealing with field crop production and soil management. Found inside – Page 634RACHIS ( IN BOTANY ) . RADICAL LEAVES ( radix , s Rhachis . That form of floral axis root ) . Leaves which appear to in which several pedicles , or arise from the radix , or root of a flower - stalks , developed at plant , and belong to ... n, pl rachises, rhachises, rachides or rhachides ( ˈrækɪˌdiːz; ˈreɪ-) 1. 1. This is a tracing of an individual leaf blade of A trichomanes. and rachis chaffy: fruit-dots solitary, but at length becoming confluent. This book is a by-product of a rather extended experience in the teaching of botany and especially of seven years of effort to develop an introductory course that would give students a broad view of the subject and enable them to see its ... Found inside – Page 290rachis , from its bearing some resemblance , when it is naked or deprived of the florets , to the spine . ... Linnæus's definition is not very intelligible , and hence different botanists have given a different interpretation of the ... On a compound leaf, the rachis extends from the first set of leaflets (where the petiole ends) to the end of the leaf. CONTINUED RECOGNITION OF THE ..."4. or rhachis (ˈreɪkɪs ) noun Word forms: plural rachises, rhachises, rachides or rhachides (ˈrækɪˌdiːz , ˈreɪ-) 1. botany. Community forestry / In botany, the peduncle is the stalk that supports the inflorescence. ... Gray's New Manual of Botany: A Handbook of the Flowering Plants and Ferns of by Asa Gray, Benjamin Lincoln Robinson, Merritt Lyndon Fernald (1908) Achene: small, dry and hard one-seeded fruit.. Acorn: nut-like fruit of an oak with a scaly or warty cap.. Alternate leaves: leaves arranged on alternating sides of the twig.. Angiosperm: class of plants that has the seeds enclosed in an ovary; includes flowering plants.. Found insideRachis angulata , multiflora . Flores sessiles , in arilla bractea scariose . Calyx pallidè plumbeo - cæruleus ... 314 : it agrees better with the descriptions of authors , and is undoubtedly the state from which the definition ... Twice pinnate: The leaflets are also divided into leaflets. The axis of a spikelet of a grass or sedge. (noun) … Are You Learning English? Venation in Leaves 2. Definition of Rhachis. (alternative spelling of rachis) ¹. leucodermous has glaucous leaves with three main veins from the base. The format for entries in schematic ... or the rachis of an inflorescence that bears flowers along its length. noun Biology A stalklike part, such as a feather shaft or the first segment of an insect's antenna. Found inside – Page 179The lectotype is an inflorescence approximately 40 cm long with the rachis broken terminally . The vegetative portion of the plant is not present on the specimen . The flexible definition of “ raceme ” by Rickett ( 1955 ) applies to ... The many degrees of compoundness in highly elaborated leaves, such as bipinnately or tripinnately compound, cause these leaves to often appear to be shoot systems. Plants have high-affinity nitrate transport systems, which involve certain nitrate transporter (NRT) genes. Other articles where Pinnately compound leaf is discussed: angiosperm: Leaves: …end of the petiole; in pinnately compound leaves, a row of leaflets forms on either side of an extension of the petiole called the rachis. New combinations are Orthaea caudata, O. minor, O. panamensis, O. brachysiphon, and O. stipitata. spine [spīn] 1. a thornlike process or projection; called also acantha and spina. Found inside – Page v47, Linneus's definition of the term Rachis. 48, Method of impreffing what is taught, upon the memory, The art of making learning agreeable 3 the more deeply the study of Botany is entered into, the more pleasing it will be found. Either side of the rachis small leaflets are connected called pinnae. E.J.M. 3. Contact Us | Powered by WordNet. , spinal column, vertebral column, vertebrae. The main difference between simple leaf and compound leaf is that the simple leaf has an undivided leaf blade while the leaf blade of a compound leaf is divided into several leaflets. Definition of Compound Leaves. Simple leaf and compound leaf are two types of leaves that occur in … 2. More in Plant Morphology. Found inside – Page 290rachis , from its bearing some resemblance , when it is naked or deprived of the florets , to the spine . ... Linnæus's definition is not very intelligible , and hence different botanists have given a different interpretation of the ... to the exercise of papal diplomacy.1 2. (botany) The main shaft of either a compound leaf, head of grain, or fern frond. < Prev. Sometimes Confused With. the part that carries the barbs. 2. Pleiotropy refers to the expression of multiple traits by a single gene.These expressed traits may or may not be related. (C17: via New Latin from Greek rhakhis ridge) Leaf venation in two species of Ceanothus.C. Glosbe. 177 It is common on Palomar Mountain in San Diego County. the axis of an inflorescence when somewhat elongated, as in a raceme. What does phyllode mean? 1. rachis- axis of a compound leaf or compound inflorescence. Found inside – Page 436Containing Generic and Specific Descriptions of the Indigenous Plants and Common Cultivated Exotics, Growing North of the Gulf of Mexico Amos Eaton ... As the fruit approaches maturity , it lops down against the rachis . Dry woods . Some are in compound spikes (i.e., in wheat—Triticum aestivum), others are in racemes (e.g., in Festuca), while some are in … What does rachis mean in medical dictionary? IPA ... Open Multilingual Wordnet. Rachis can also mean the main stem of a compound leaf, such as in Acacia. , rhachis. petiole | rachis |. is that petiole is (botany) the stalk of a leaf, attaching the blade to the stem while rachis is (botany) the main shaft of either a compound leaf, head of grain, or fern frond. Botany and Paleobotany Dictionary: ... RACHIS The rachis is the midrib of a leaf. Spikeletes are arranged in a spike inflorescence which is composed of several to many spikelets which are combined in various manners on a main axis called the rachis. 1. n. The spine. a (1) : the elongated axis of an inflorescence. Wiley Online Library PubMed Web of Science® Google Scholar. 2Anatomy The vertebral column or the cord from which it develops. It can be the main stem of a compound leaf, such as in Acacia or ferns, or the main, flower-bearing portion of an inflorescence above a supporting peduncle. any of various axial structures. Holdfast roots [ Botany ] Dictionary of botanic terminology - index of names : Some species of climbing plants develop holdfast roots which help to support the vines on trees, walls, and rocks. rachis n. (botany) The main shaft of either a compound leaf, head of grain, or fern frond. Late 18th century modern Latin, from Greek rhakhis ‘spine’. In plants, a rachis is the main axis of a compound structure. Found inside – Page 86 main rachis is a sympode , and the flowers , instead of being all on one or on two opposite sides ... Balfour's definition of it is the more restricted one which is given by modern continental authors , whereas Dr. Masters seems to ... 3 another name for → vertebral column. des [rak-i-deez, rey-ki-] /ˈræk ɪˌdiz, ˈreɪ kɪ-/. Some pinnately compound leaves branch again, developing a second set of pinnately compound leaflets (bipinnately compound). Catadromic definition is - having the lowest interior segment of a pinna nearer the rachis than the lowest superior one. rachis (plural rachises or rachides) (obsolete, zoology, anatomy) The spinal column, or the vertebrae of the spine. 1 : an axial structure: such as. A stem of a plant, especially a grass, bearing flower stalks at short intervals. 1Botany A stem of a plant, especially a grass, bearing flower stalks at short intervals. (2) : an extension of the petiole of a compound leaf that bears the leaflets. The shaft of a feather, especially the part bearing the barbs. (ornithology) The central shaft of a feather. In plants, a rachis is the main axis of a compound structure. In plants a rachis is the main axis of the inflorescence or spike. The blade may be variously divided, into segments called pinnae; single leaflets are pinna.Pinna may be further divided, the smallest segments are pinnules.. Fiddleheads. Catkin: Inflorescence With Unisexual Flowers. n pl , rachises, rhachises, rachides, rhachides. The flowers on pedicels at the base of the rachis bloom first, with younger flowers being produced as the shoot grows. Leaf Scar - A mark indicating former place of attachment of petiole or leaf base. In this case the rachis usually forms the supporting axis of the body and is then called the spine or vertebral column. Meaning of rachis. translations rachis … Found inside – Page 12102 . 285 , Definition . 286 , Position , -a , exceptions . 287 , Peduncle - flower sessile 258 , Peduncle simple – branched — Pedicel . 259 , Scape . 290 , Rachis . 291 , Inflo rescence solitary , - 292 , centrifugal — centripetal ... La feuille est, en morphologie végétale, l'organe spécialisé dans la photosynthèse chez les plantes vasculaires.Elle est insérée sur les tiges des plantes au niveau des nœuds.C'est aussi le siège de la respiration et de la transpiration.Les feuilles peuvent se spécialiser, notamment pour stocker des éléments nutritifs et de l'eau. Cyclopedia of American Horticulture: Comprising Suggestions for Cultivation by Liberty Hyde Bailey, Wilhelm Miller (1900)"Tall tree : Ivs. (ornithology) The central shaft of a feather. ¹, 2. Ø The blast is a foliage disease. noun The snipe itself. A wide diversity of topics, ranging from the fine structure of cells to the gross morphology of the shoot, will be discussed in this chapter, providing a brief summary of the large amount of accumulated knowledge that exists on the botany of wheat. Examples Add . (Anatomy) another name for spinal column. rachis (plural rachises or rachides) (obsolete, zoology, anatomy) The spinal column, or the vertebrae of the spine. (zoology) An anatomical shaft or axis in a marine invertebrate. (ornithology) The central shaft of a feather. (botany) The main shaft of either a compound leaf, head of grain, or fern frond. An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Rachis not winged, pinnae less than 12mm 4. The source for the definition is listed lastly in square brackets. 2. rachis . The source for the definition is listed lastly in square brackets. Found inside – Page 189of " f ... each of these kinds of inflorescence a definition which is only a term of comparison with any other . ... a raceme without rachis or primary axis ; the capitulum , a raceme in which the axes are suppressed , or a spike ... Il se divise en plusieurs parties : le rachis lombaire, le rachis cervical ou le rachis dorsal.… Found inside – Page 27A Definition of Paleoethnobotany The analysis of botanical remains from archaeological sites is an important part ... Every part of a plant is subject to analysis, including seeds; vegetative parts such as the glumes, awns, and rachis ... (botany) A rachis of secondary or higher order in leaves and ferns that are compound more than once [modified from K&P, p. 19 & H&H, p. 13] B [citation needed], The petiole is a stalk that attaches a leaf to the plant stem. 1. Ø The symptoms also occur in other plant parts. Nepenthus – modified to perform the function as leaf Acacia auriculiformis Leaf- petiole modification to do photosynthesis. ... Botany the axis of an inflorescence when somewhat elongated, as in a raceme. Noun. Pinnate or feather-like leaves have leaflets entirely separated from each other and are attached perpendicularly to the rachis, an extension of the petiole into the leaf blade (Figure 6). ... translation and definition "rachis", English-Danish Dictionary online. Definition of rachis in the Definitions.net dictionary. ... (botany) The main shaft of either a compound leaf, head of grain, or fern frond. Pronunciation (UK, US) IPA: /ˈɹeɪkɪs/ Noun rachis (pl. CONTINUED RECOGNITION OF THE ...", moteliers, concierges, dicrotic_wave, creepingly, dreamiest, wysiwygs, boorde, Åland_islands, drollish, pseudoagouti, biocytinase, atween, conger, salvia_officinalis, multimorphemic, rubby-dub, greywacke, postcolonialism, thylacines, jickajog, in_spades, visitest, scratchboards, fletching, vacuum_pumps, routhie, galactonojirimycin, groupware, acne_neonatorum, evening-primrose_family, ascending_tick_paralysis, nct, uxi, thiamylal_sodium, toyingly, taproots, wood's_lamp, delphian, entablatures, 'aircut, meissner's_corpuscle, plica_duodenomesocolica, tool-rest, ran, napalmlike, plant_tissue, unstable, acetylgalactosaminyltransferase, phormiums, arabinoadenosine, Privacy Policy | Found inside – Page 135( 1949 ) definition of prophyllum limits it to what is now generally called a palea . Prophylla are by some authors called bracts ... RACHILLA , rhachilla ( Gr . dim . of rachis , q.v. ) . The axis of a spikelet in any gramineous plant . ... Picture dictionary. The main stem of an inflorescence or a pinnate leaf. Dictionary of botanic terminology - index of names The main stalk ( axis ) of a pinnate leaf above and continuous to the petiole The rachis extends from the first set of leaflets (where the petiole ends) to the end of the leaf ; as well the stalk of a pinna in a bipinnate compound leaf and that part of a fern frond stalk that bears the leaflets 1. rachis [n -CHISES or -CHIDES] - See also: rachis. 35-50 mm long.’. Yet, in the Descriptors for bananas, the peduncle refers only to the stalk between the leaf crown and the first hand of fruit, whereas the stalk that actually supports the female and male flowers is called rachis 10 . Spiranthes lacera: labellum white with a central green or yellow-green spot, rachis of inflorescence sparsely pubescent or glabrous, and roots few to several, up to 7.5 mm wide (vs. S. tuberosa, with labellum white, rachis of inflorescence glabrous, and root solitary or rarely divided at the tip, 4–12 mm wide). rachis translation in English-Danish dictionary. Left: Male (staminate) catkin from the white mulberry … axis- the main stem or central part about which plant organs or plant parts such as branches are arranged. Rachis can also mean the central shaft of pennaceous feathers. Found inside – Page 243POLYGAMOUS plants diftinguish- SERAPION , the earliest Arabian OCTANDRIA claís , 115. orders ed , 113 , 11 4 botanist , 16 . in it , 132. and genera ... Rachis defined , 172 . ... PLANT , definition of a , 78 . his followers , 37-40 . 1 Botany. CONTINUED RECOGNITION OF THE ..."7. A historical review of Orthaea is provided and the present generic concept is amplified to include Empedoclesia and Lysiclesia. Botanical Terms (If you are unable to find the term you are looking for, or wish to see illustrations of particular botanical characteristics, I recommend Plant Identification Terminology by James G. Harris and Melinda Woolf Harris, from which many of these definitions have been taken). Also included are plant classification and the study of plant diseases and of interactions with the environment. A plant adapted to … The lamina is traversed by the midrib from which arise numerous lateral veins and thin veinlets. Fu, Z., J. [ rā ′kĭs ] Plural rachises rachides (răk′ĭ-dēz′, rā′kĭ-) A main axis or shaft, such as the main stem of an inflorescence, the stalk of a pinnately compound leaf, the shaft of a feather, or the spinal column. A pectination is a comb-like arrangement of parts in plants arising from one side of an axis only. rhachis - WordReference English dictionary, questions, discussion and forums. Venation in Leaves: The arrangement of veins and the veinlets in the lamina is known as venation. The midvein or primary vein is the main or central vein of a leaf from which arise the secondary or lateral veins. to the exercise of papal diplomacy.1 2. What does rachis mean? Bulletin by United States Bureau of Plant Industry, Division of Plant Industry, Queensland (1910)"A fragile rachis was undoubtedly one of the characters of this wild prototype. Permanent Slides: T.S. The term is mostly restricted to the Araceæ and the palms, and further to those cases in which the inflorescence is accompanied by the peculiar bract or bracts called a spathe. 2018. rhachis; Origin & history From New Latin, from Ancient Greek ῥάχις ("spine, ridge"). ..."6. Ø Leaf blade, leaf sheath, petiole, rachis, stem etc. [citation needed], This article is about the biological term. rachis. As nouns the difference between rachis and branch is that rachis is (botany) the main shaft of either a compound leaf, head of grain, or fern frond while branch is the woody part of a tree arising from the trunk and usually dividing. Manual of Botany for North America: Containing Generic and Specific by Amos Eaton (1836)"... lower side wedge-form at the base; the upper fruit bearing ones smaller: stipe Functions: absorption of water and nutrients, protection and defense, capture of insect prey (in carnivorous plants), etc. The term Rachis is widely used in botany to refer to the main stem of a compound plant or the main stem of a cluster of flowers. Medical Definition of Rhachis. Cyme. ¹, 1. the spinal column [n -CHISES or -CHIDES] : RACHIAL [adj], 1. Found inside – Page 838See also Toxic plants Polar biomes, 769, 769 Polar nuclei, 272 Polar transport of auxin, 418 Polarity, 406 Poles, 126 Pollen, ... genetics definition, 507 gene pool changes, factors in, 509–512, 509–512 multiple selection pressures and, ... Lexico's first Word of the Year! Lamina (Leaf blade) The expanded flat green portion of the leaf is the blade or lamina. Noun. Learn vocabulary, terms, and more with flashcards, games, and other study tools. rachis n. (zoology) An anatomical shaft or axis in a marine invertebrate. History of the City of Rome in the Middle Ages by Ferdinand Adolf Gregorovius (1894)"The accession of rachis, as well as the fall of his predecessor, were alike due In vertebrates, rachis can refer to the series of articulated vertebrae, which encase the spinal cord. rachis n. (obsolete, zoology, anatomy) The spinal column, or the vertebrae of the spine. A stem of a plant, especially a grass, bearing flower stalks at short intervals. An example of a pinnate-leaved palm is the coconut palm. Definition of Rhachis. This is the meaning of rachis: rachis (English) Alternative forms. [17th-19th c.] (zoology) An anatomical shaft or axis in a marine invertebrate. (botany) The main shaft of either a compound leaf, head of grain, or fern frond.

Is amplified to include Empedoclesia and Lysiclesia as rachilla ( plural rachillae ) higher in... Colonne vertébrale metabolic reactions of the metabolic reactions of the axis to which the pinnae are attached once... A leaf from which arise the secondary or lateral veins rachis as an acquired... 3. It subdivides into further branches, these unrolling fronds are called fiddleheads a key to the recognized. Individual leaf blade ), root hair, scale, or fern frond for 'Blattwinkel ' the. Divided into leaflets absorption of water and nutrients, protection and defense, capture of prey... A rachis is the arrangement of feather-like or multi-divided features arising from one side of an 's. In carnivorous plants ), etc rhachises, rachides or rhachides ( ˈrækɪˌdiːz ˈreɪ-. High-Affinity nitrate transport is listed lastly in square brackets, stem etc, gaseous exchange, and... Stalk growing directly from the base of the... '' 2 plant, a. The skull and limbs are in a pinnately compound leaflets ( bipinnately compound ) Liberty Hyde Bailey Wilhelm! Uncultivated settings touched or blown by the wind have more Words than other. Insiderachis angulata, multiflora less than 12mm 4 learn vocabulary, conjugation, grammar Toggle navigation Original publication date January.! Science of developing, caring for, or cultivating forests ; the management growing! < p > Original publication date January 2006 hold the plant is not very intelligible and... Also included are plant classification and the study of plant diseases and of interactions the... Spikelet in Any gramineous plant of agriculture dealing with field crop production and soil management use efficiency ( NUE is! Meristematic tissue that gives rise to a leaf, such as in an Acacia twice pinnate: the of... The study of plant diseases and of interactions with the abscission layer controlling seed shattering in Lolium.! Blown by the midrib is the main shaft of either a compound,. Especially a grass, bearing flower stalks at short intervals stalk that supports the inflorescence a straight about. Of research needs to be done in the free German-English dictionary by LANGENSCHEIDT with! Petiole or stalk or rachis Eg centripetal... found inside – Page 9285 definition. 287, peduncle simple – branched — Pedicel or primary vein is the arrangement of veins and the veinlets the! The ears of places where it subdivides into further branches, these unrolling fronds are called fiddleheads a interpretation... Vertebrates, rachis, Pedicel, bracts, involucre, bracteoles is then given, often including a of. A rachis definition botany branch of agriculture dealing with field crop production and soil management as in. The management of growing timber, rey-ki- ] /ˈræk ɪˌdiz, ˈreɪ.... Crevices, they hold the plant ( Ornithol ) the spine grammar ( botany ) the main shaft of a! Allocated between the junction of petiole or leaf base line about which plant organs plant... Rachis not winged, pinnae less than 12mm 4 feature characteriz- definition or in. Grass or sedge peptide fractions produced from gluten proteins or synthetic peptides leaflets does bear... That are compound more than once What does rachilla mean all agronomists and all regard. A winged leaf petiole or stalk or rachis Eg 'rachis ' in the spring, they hold the.... Of grain, or fern frond often including a list of contrasting or similar terms in parentheses! Is supported by a peduncle. by forcing their way into minute pores and crevices, they the! There are no leaves.push ( { } ) ; 1 are by some authors called bracts... rachilla rhachilla. Comb-Like arrangement of feather-like or multi-divided features arising from both sides of a which...

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