PPT-Introduction to Systematics/Plant Taxonomy

Dr Habibur Rahman Associate Professor J N College Boko Aims of Taxonomy To provide a convenient method of identification and communication To provide classification which is based on natural affinities of organisms as far as possible. 1 ud bank types and organs on 1hich the buds develop2 Eamples 1ere taken from the central European 7ora2 1 above ground seasonal bud bank stem tubercule Bistorta vivipara root tubercule Ranunculus 64257caria turion Utricularia vulgaris buddin Taxonomy of Evctives:. . Furst,Taxonomy, NewcombTrefzmodel Taxonomy was used inthis study.Table 1. Comparison of Bloom’s Taxonomy and the Newcomb-Trefz ModelBloom’s TaxonomyNewcomb-Trefz Mo By: Matthew Mattox. Eastern Red Cedar. Juniperus. . Virginiana. Keeps its foliage year round, grows in . zones . 2-9, aromatic tree with reddish wood giving off the scent of cedar.. Full direct sun for 6 hours per day.. Systematics. Phylogeny. Phylon. = tribe, . geny. . = genesis or origin. The evolutionary history of a species or a group of related species.. Investigating the Tree of Life. Phylogeny: the evolutionary history of a species or group of species. Haeckel’s evolutionary trees are among the first attempts at phylogeny inference.. Darwin’s tree. Schools of thought. A. Evolutionary Taxonomy. The basic view was that the best way to reconstruct the phylogeny of a group is to spend a lifetime learning everything one can about the biology of the group.. Michael . Ferguson. 10-11-10. Classification Hokey Pokey. Everyone remove your left shoe and put the shoes in a pile in the back of the room.. Now take off your right shoe and put the shoes in a pile in front of the SAE wall.. Section 1 - Biodiversity. Biologists have named and classified almost 2 million species. They believe the total is much greater.. Various methods of classification have been used to organize their knowledge of the tremendous number of species. Species have been placed in categories based on particular characteristics.. Agriculture Teacher/FFA Advisor. Introduction. Taxonomy is the science of classifying and identifying plants.. Scientific names are necessary because the same common name is used for different plants in different areas of the world.. 植物型態 . Plant Morphology. 國立臺灣大學 森林環境暨資源學系 鍾國芳 . (. Kuo. -Fang Chung) . School of Forestry and Resource Conservation, National Taiwan University. 【. 本著作除另有註明外，採取. Taxonomy. (. Greek: taxis = arrangement; . nomos. = . law) AND is . further divided into three working groups: . Classification. , . Identification. and . Nomenclature. . . Classification. : . placing organisms within groups with members exhibiting . Mayr - “the theory and practice of classifying organisms”. . . a. -Taxonomy – includes species descriptions, taxonomic keys, and diagnoses.. . b. -Taxonomy – includes identification of natural groups and biological classes.. Associate Professor. J. N. . College,Boko. Alpha(Classical), Omega(Modern) and . Cladistic. Taxonomy. Difference between Alpha & Omega Taxonomy. Modern trends in taxonomy. . Taxonomists now accept that, the morphological characters alone should not be considered in systematic classification of plants. The complete knowledge of taxonomy is possible with the principles of various disciplines like Cytology, Genetics, Anatomy, Physiology, Geographical Distribution, Embryology, Ecology, Palynology, Phenology, Bio-Chemistry, Numerical Taxonomy and Transplant Experiments. These have been found to be useful in solving some of the taxonomical problems by providing additional characters. It has changed the face of classification from alpha (classical) to omega (modern kind). Thus the new systematic has evolved into a better taxonomy.. . صدق الله العظيم. . سورة الأنعام . 59. . Plant duration:. According to duration, the flowering plants classified to:. Phylogenetics. • . Phylogenetic. trees illustrate the. evolutionary relationships among groups . of organisms. , or among a family of . related nucleic . acid or protein . sequences. Each branch represents a new species which inherits many (primitive) traits from the ancestor but also has a new (derived) trait which appear for the 1.