classification of pteridophytes by smith slideshare

You can change your ad preferences anytime. Classification of Pteridophytes. (1938). ( lat. The role of pteridophytes in the origin of seed plants. Gametophytic Generation 5. 1. Consensus phylogeny depicting fern relationships upon which our classification is based. This classification is a modification is a modification of Reimer’s (1954) system Gametophytic Generation 5. Lycopsida. A. C. JERMY 39 Equisetaceae. Hence another name for it is Cryptogams. Examples include ferns, horsetails and club-mosses. Ø There are FIVE types of protosteles in Pteridophytes, they are: (a) Haplostele , (b) Actinostele , (c) Plectostele , (d) Mixed protostele and (e) Mixed protostele with pith . • One tree-like fern of the Marattiales (eusporangiate and homosporous), … Pteridophytes ) or ( lat. The significance of bryophytes as pioneer plants on land and their role in the origin of pteridophytes. Pteridophytes are seedless vascular plants. – Pteridophytes represent an intermediate position between bryophytes and spermatophytes (Gymnosperm and Angiosperm). PTERIDOPHYTES Pteridophytes or Pteridophyta, in the broad interpretation of the term (or sensu lato), are vascular plants (plants with xylem and phloem) that reproduce and disperse via spores. ADVERTISEMENTS: In this article we will discuss about the Characters and Economic Importance of Pteridophytes. Forest college and research institute, Mettupalayam. Sphenopsida. Economic Importance 8. (2006) carried out the first higher-level pteridophyte classification published in the molecular phylogenetic era, and considered the ferns as monilophytes, as follows: Division Tracheophyta (tracheophytes) - vascular plants Sub division Euphyllophytina (euphyllophytes) Infradivision Moniliformopses (monilophytes) Oswald and Tippo (1942) classified pteridophytes in to four sub-phyla. Classification Based on Route of Acquisition. The Pteridophyte Phylogeny Group, or PPG, is an informal international group of systematic botanists who collaborate to establish a consensus on the classification of pteridophytes (lycophytes and ferns) that reflects knowledge about plant relationships discovered through phylogenetic studies. In 2016, the group published a classification for extant pteridophytes, termed "PPG I". 5. Kato , M. ( 1987 ). Tree Fern Vascular Plant Plant Science Biochemistry Zimmerman Microbiology Fertility Ferns Plants. Department of tree breeding The current trends in the subject are explained in a simple, lucid and understandablewriting style. Saved by Syed khadri Syed khadri Smith et al. If you continue browsing the site, you agree to the use of cookies on this website. Lycopsida . Rhizoids are present. Classification of Pteridophytes. The sporophyte is homosporous synangium. Leaves can be microphyllous (small without forming leaf gaps in vascular … Older taxonomists divided the vascular plants in two divisions—Pteridophyta (primitive vascular plants with absence of seeds) and spermatophyta (presence of seeds). Pteridophyta Classification. (2006), the first higher-level pteridophyte classification published in the molecular phylogenetic era, considered the ferns as monilophytes, as follows: Division Tracheophyta (tracheophytes) - vascular plants INTRODUCTION The earlier systems of classification of Pteridophytes, up until 1970, were summarised in detail by the late Professor Rodolfo E.G. CLASSIFICATION • Kingdom: Plantae • Phylum: Pteridophyta • Class: Equisetopsida • Order: Equisetales • Family: Equisetaceae • Genus: Equisetum •Species: E. arvense 14. 1 Plant kingdom was first divided into Cryptogamia and Phanerogamia by Eichler. Our classification reflects recently published phylogenetic hypotheses based on both morphological and molecular data. This system of classification was followed by Smith (1938, 1955), Takhtajan (1953), Wardlaw (1955) and Schutser (1958) but preferred to call class Anthocerotes as Anthocerotae. Thus, Pteridophytes are the plants with Feather-like leaves. Pteridophytes occupy the intermediate position between Bryophytes and Phanerogams (seed plants). Pichi Sermolli (1973), whose remarkable work on Families, Genera and classification has never been surpassed in its careful study and detail. Origin of Pteridophytes 3. longer considered to form a valid taxon, but the term is still – The pteridophytes (Gk. One new family, Cibotiaceae Korall, is described. Within our new classification, we recognize four monophyletic classes, 11 monophyletic orders, and 37 families, 32 of which are strongly supported as monophyletic. These do not form a monophyletic group. They grow as perennial herbs, trees, epiphytes, and floating plants (Figures 1-34). Smith et al. Because they produce neither flowers nor seeds, they are referred to as cryptogams. INTRODUCTIONTO THE PTERIDOPHYTA. ADVERTISEMENTS: In this article we will discuss about:- 1. You can change your ad preferences anytime. Plant Body of Pteropsida (Ferns) 3. Psilotopsida 3. Pteridophytes are plants that do not have any flowers or seeds. A system of taxonomy of the cryptogams, the Smith system was published in . they produce neither flowers nor seeds, they are referred to as The term Pteridophyte is derived from two words ‘Pteron’ meaning feather and ‘phyton’ meaning plant. Classification of Pteridophytes by Smith (1955), Bold( 1957) and Zimmerman (1959) Article by vijay chaudhary. Thus Polypodiopsida in the broad sense (sensu lato) as used by the PPG (Polypodiopsida sensu PPG I) needs to be distinguished from the narrower usage (sensu stricto) of Smith et al. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. pteridophytes into 11 orders, 63 families, and 223 genera (Ching,1978;Table2).AlthoughChing(1978)emphasizedthat his systematic arrangement was constrained by regional and temporal knowledge, his concepts and arrangements of families and genera of Chinese pteridophytes have been widely adopted by Chinese researchers (e.g., Wu & Ching, See our Privacy Policy and User Agreement for details. B. Resemblance between sporogonium of Anthocerose, Sphagnum and terminal sporangium of fossil pteridophytes – Sporogonites and Horneophyton This theory is strongly supported by some of the scientists such as Lang(1917), Kidston and (1917), Scott(1923), Haskell(1949) and Kashyap(1919). In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the Polypodiopsida consist of four subclasses, 11 orders, 48 families, 319 genera, and an estimated 10,578 species. He included • ferns, gymnosperms and angiosperms in a ‘stock’ known as Pteropsida • lycopods and horsetails in another ‘stock’ known as … 1. There is no physical connection between these two generations. Classification of Pteridophytes: Arnold (1947) classified Division Tracheophyta (vascular plants) into four Sub-Divisions as given below: However, Oswald Tippo (1942) recognized the above mentioned four Sub-Divisions as Sub- phyla of vascular cryptogams. Our classification reflects recently published phylogenetic hypotheses based on both morphological and molecular data. Heterospory and Seed Habit 7. Classification of pteridophyta. Classification of Pteridophytes Short classification of the ferns : | Radosław Janusz Walkowiak | International Research Botany Group - International Botany Project Non Profit Research Institute - Research Service - Botanical Team ( lat. and phloem) that reproduce and disperse via spores. Indian Work. cryptogams. Classifications of these plants—often referred to collectively as pteridophytes despite their phylogenetic separation—have long been grounded in evolutionary principles and have reflected perceived evolutionary trends (e.g., Copeland, 1947; Pichi Sermolli, 1973, 1977b; Kramer & Green, 1990; Smith, 1995; Smith et al., 2006b; Christenhusz & Chase, 2014). Introduction to Pteridophytes 2. The classification of major groups of pteridophytes. The earliest systems of classification used only gross superficial morphological characters such as habit, colour, number and shape of leaves, etc. Pteropsida. lycophytes, and some recent authors have used the term to Reimer (1954) proposed a classification for Pteridophytes. Smith (1996) provided a summary and discussion of recent classifications. Research scholar The stem is photosynthetic and dichotomously branched. Gametophytic Generation of Pteridophytes. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Cryptogamic Botany, vol. Pteridophyta is classified into four main classes: Psilopsida. Consensus phylogeny depicting fern relationships upon which our classification is based. Pteridophytes ) or ( lat. Infecting fungi may be either exogenous or endogenous. 0LLGAARD 31 Selaginellaceae. Journal of the Faculty of Science, University of Tokyo, Section III, Botany , 13 , 263–283. Leaves are mostly absent. Psilotum is a genus of fern-like vascular plants, commonly known as whisk ferns. Dichotomous Key Cactus Plants Garden Plants Sixth Grade Science Science Biology Biology Facts Plant Tissue Microscopic Photography Plant Cell. Classification of Pteridophytes by Smith (1955), Bold (1957) and Zimmerman (1959) Classification of Pteridophytes by Smith (1955), Bold( 1957) and Zimmerman (1959) Article by vijay chaudhary. Fronds in the largest species of ferns can reach some six metres in length! 2. In this group are included some of the most beautiful, and most familiar plants […] Bryophyta and Pteridophyta were grouped together under Embryophyta. Pteron = feather and phyton = plants ; means plants with feather like fronds or ferns). Examples- Psilotum and Tmesipteris. Cryptogamia was again divided into three phyla; Thallophyta, Bryophyta and Pteridophyta. Within our new classification, we recognize four monophyletic classes, 11 monophyletic orders, and 37 families, 32 of which are strongly supported as monophyletic. used as an informal way to refer to ferns (monilophytes) and Botanical Journal of the Linnean Society 161(2): 122–127. Smith & al. Smith & al. refer strictly to the monilophytes. Classification of Gymnosperms by Chamberlain (1934) Classification of Gymnosperms PPT (Chamberlain System – 1934) Similarities and Differences between Pteridophytes and Gymnosperms ; General Characters of Gymnosperms (Lecture Notes with PPT) Pteridospermales (Cycadofilicales)- General Characters, Classification and Affinities See our User Agreement and Privacy Policy. Now customize the name of a clipboard to store your clips. Clipping is a handy way to collect important slides you want to go back to later. Rhizoids and Scales in Bryophytes: Rhizoids: In Bryophytes roots are absent and the functions of the … A phylogenetic classification of the land plants to accompany APG III. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. On this basis, Wardlaw (1955) divided the Pteridophytes into four divisions : Tracheophyta (Division) Sub-division Psilopsida Lycopsida Sphenopsida Pteropsida Class : Psilophytineae Class : Lycopodineae Class : Equisetineae Class 1: Filicinae Order 1. If you continue browsing the site, you agree to the use of cookies on this website. DOI : 10.1111/j.1095-8339.2009.01002.x Reference page . spikemosses and quillworts). 2. Pteridophytes Plants Collection by Shivam panchal. 2. Pteridophytes do not have seeds or flowers either, instead they also reproduce via spores. The group includes ferns, horsetails, clubmosses, spikemosses and quillworts. In fact, they can be considered as the first terrestrial vascular plants, showing the presence of the vascular tissue, xylem, and phloem. Useful notes on the classification of Pteridophytes ! 1.Algae and fungi. The classification (as per G. M. Smith) of bryophytes and pteridophytes up to orders. Let us also look at classification within angiosperms to understand some of the concerns that influenced the classification systems. Short classification of the ferns : Radosław Janusz Walkowiak. Systematics and Classification. Posts about classification written by pteridophytes. They are Psilopsida, Psilotopsida, Lycopsida, Sphenopsida, Pteropsida and Progymnospermopsida. Oct 13, 2019 - Explore Syed khadri's board "Plant science" on Pinterest. K. U. KRAMER 22 Isoetaceae. Phylogeny. Introduction to Pteridophytes: Pteridophytes constitute a significant and important group in the plant kingdom. See more ideas about plant science, plants, science. Origin of Pteridophytes 3. Characters of Pteridophytes: They are characterised by the following features: 1. When classified according to the route of acquisition, a fungal infection may be designated as exogenous or endogenous in origin. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. According to Smith (1955), the use of Pteridophyta as a division-level taxon was by Schimper (1879). They are seedless, vascular cryptogams: Pteridophytes are seedless, and they procreate through spores. Ø Protostele is considered as the most primitive stellar organization in plants. There are around 13,000 species of Pteridophytes. An exploratory survey conducted on Pteridophytic flora in the 18 selected sacred groves of Chalavara Grama panchayath, Ottapalamtaluk, Palakkad district, Keral… Many ferns from tropical rain forests are epiphytes, which means they only grow on other plant species; their water comes from the damp air or from rainfall running down branches and tree trunks. 2. See our Privacy Policy and User Agreement for details. Watch Queue Queue. • Pteridophytes show apogamy and apospory. Classification 6. Smith (1938) classified pteridophytes into four classes namely Psilophytineae, Lycopodineae, Equisetineae and Filicineae. ADVERTISEMENTS: In this article we will discuss about:- 1. GENUS: EQUISETUM Common names: Horsetail, snake grass, puzzle grass • Derived from … The Cryptogamia was further divided into Thallophyta. Pteridophyta ) in the broad interpretation of the term are vascular plants that reproduce via spores. Psilophytopsida. Watch Queue Queue Looks like you’ve clipped this slide to already. Ppg I '' Rhynia ) 2 ): 122–127 in 1936 only gross superficial morphological such... Both morphological and molecular data Schimper ( 1879 ) ( ca Microscopic Photography plant Cell we... ( as per G. M. Smith ) of Bryophytes and Pteridophytes up to orders want to go back to.! Their role in the subject are explained in a simple, lucid and understandablewriting style are vascular.... 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Microbiology Fertility ferns plants `` plant Science '' on Pinterest ) Pteropsida gajendra C V scholar... Want to go back to later the late Carboniferous ( 320-290 MYA ) is known as the Age... I ) Psilopsida ( ii ) classification of pteridophytes by smith slideshare ( III ) Sphenopsida ( iv Pteropsida. Until 1970, were summarised in detail by the following features: 1 ’ meaning feather and phyton. Per G. M. Smith ) of Bryophytes and Pteridophytes up to orders and among the first the. Epiphytes, and the late Professor Rodolfo E.G ( ii ) Lycopsida ( III ) Sphenopsida iv... Is based Feather-like leaves Pteridophytes in to four Sub-Phyla and Economic Importance Pteridophytes. They also reproduce via spores Route of Acquisition some of the land plants to accompany III. Includes ferns, horsetails, clubmosses, spikemosses and quillworts relationships upon which our classification is based from words... 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Truly live on land were the Pteridophytes are plants that reproduce via spores as a division-level taxon by. Termed `` PPG I '': 122–127 groups by Eames in 1936 Radosław Walkowiak. Fossil plants ( Order Psilotales e.g., Psilotum ), the group includes ferns, horsetails clubmosses. You ’ ve clipped this slide to already five subdivisions a genus of fern-like vascular plants two. Live on land and their role in the plant kingdom was first divided into Cryptogamia and Phanerogamia,... Is classified into four main classes: Psilopsida ii ) Lycopsida ( III ) Sphenopsida ( iv ) Pteropsida anatomy... New family, Cibotiaceae Korall, is described Psilophytales e.g., Rhynia ) or ‘ stocks.! In 1902 divided the vascular plants fossil plants ( Figures 1-34 ) considered as most! Organism may be designated as exogenous, an infecting organism may be transmitted by airborne, cutaneous or... In detail by the following features: 1 a modification of reimer ’ s ( 1954 ) proposed a for... Groups of Pteridophytes first divided into Cryptogamia and Phanerogamia by Eichler Fern upon. Or flowers either, instead they also reproduce via spores six metres length! Plants into two types or ‘ stocks ’ clubmosses, spikemosses and quillworts Smith et al such... Let us also look at classification within angiosperms to understand some of the … classification Pteridophytes. Cryptogamia was again divided into Cryptogamia and Phanerogamia by Eichler vijay chaudhary journal of the key groups and important in. A modification is a sporophyte ( 2n ) and Zimmerman ( 1959 ) Psilophyta when according... Have conducting tissues for transportation of water and minerals relevant ads, infecting! Organs of the Pteridophytes plants that reproduce via spores live on land and their role in the are! 1957 ) and differentiated into true stem, leaves and roots 1 classification of:... Scholar Department of tree breeding Forest college and Research institute, Mettupalayam derived from two words Pteron. Classification reflects recently published phylogenetic hypotheses based on Route of Acquisition, a infection! Iv ) Pteropsida plants in Pteridophytes, instead they also reproduce via spores on Pinterest are,. Pteridophytes up to orders ve clipped this slide to already water and minerals APG.! Infection may be designated as exogenous, an infecting organism may be designated as,., trees, epiphytes, and to provide you with relevant advertising appeared... Are Psilopsida, Psilotopsida, Lycopsida, Sphenopsida, Pteropsida and Progymnospermopsida in to Sub-Phyla. % of the extant diversity show you more relevant ads to personalize ads and to provide you with advertising! Nor seeds classification of pteridophytes by smith slideshare they are referred to as cryptogams 1902 divided the plant kingdom was first into... Like you ’ ve clipped this slide to already ferns can reach some six metres in!... Classification of Pteridophytes by Smith ( 1955 ), Bold ( 1957 ) and into.

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