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Tree identification

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  • 1. Ryan Russell
  • 2.  Taxonomy Nomenclature Common names Scientific naming
  • 3.  Classification Kingdom Phylum Class Order Family Genus Species and variants
  • 4.  Classification Kingdom - Plantae Phylum Class Order Family Genus Species and variants
  • 5.  Classification Kingdom - Plantae Phylum – Division (angiosperms/gymnosperms) Class Order Family Genus Species
  • 6.  Classification Kingdom - Plantae Phylum – Division (angiosperms/gymnosperms) Class – Dicots/Monocots Order Family Genus Species
  • 7.  Classification Kingdom - Plantae Phylum – Division (angiosperms/gymnosperms) Class – Dicots/Monocots Order – Sapindales etc. Family Genus Species
  • 8.  Classification Kingdom - Plantae Phylum – Division (angiosperms/gymnosperms) Class – Dicots/Monocots Order – Sapindales etc. Family – Aceraceae, Fagaceae etc. Genus Species
  • 9.  Classification Kingdom - Plantae Phylum – Division (angiosperms/gymnosperms) Class – Dicots/Monocots Order – Sapindales etc. Family – Aceraceae, Fagaceae etc. Genus – Acer, Fagus, Quercus etc. Species
  • 10.  Classification Kingdom - Plantae Phylum – Division (angiosperms/gymnosperms) Class – Dicots/Monocots Order – Sapindales etc. Family – Aceraceae, Fagaceae etc. Genus – Acer, Fagus, Quercus etc. Species – saccharum, sylvatica, cerris etc.
  • 11. Divisions Gymnosperms : non-flowering plants; Evergreen and deciduous conifers and Ginkgo Angiosperms: flowering plants; monocots / dicots includes most trees and shrubs
  • 12. Families Plants with similar and common characteristics Includes; fabaceae, fagaceae, hammamelidaceae etc Examples include; Cercis (Redbud) and Gleditsia (Honeylocust) or Corylus (Filbert) and Betula (Birch)
  • 13. Genus Plants which are very closely related Will have very similar flowering and fruiting and can usually interbreed. Examples; Quercus (Oak), Acer (Maple), Juglans (Walnut) etc.
  • 14. Species Species indicates an individual within a genus Will breed true Examples; Quercus alba, Acer rubrum, Cercis canandensis etc.
  • 15. Hybrids Hybrids are the offspring of at least two differing species within a genus (sometimes family) Examples: Quercus x humidicola is the accepted name for the cross of Q. bicolor x lyrata. Acer x freemanii is the accepted name for the cross of A. rubrum x saccharinum
  • 16. Subspecies and Varieties Subspecies: (ssp.) are a natural closely related subset within a species that maintain a unique characteristic which differs from original species. Ex. Acer saccharum ssp. nigra Varieties: Similar to ssp. Example: Gleditsia triacanthos var. inermis
  • 17. Cultivars and Trademarks Cultivars: asexually propagated clones of a species or subspecies that exhibit consistently desirable traits Viewed as Q. macrocarpa ‘Rough Rider’ Trademarked names: cultivar names must be different than trademarked names. Example: Q. x wareii ‘Long’ is the trademarked name for the cultivar Q. x wareii ‘Regal Prince’
  • 18. Morphology Size, shape and form of plant parts Laymen ID Taxonomists ID Arborist use all
  • 19. Leaf Arrangements Opposite MAD Buck
  • 20. Leaf Arrangements Alternate and Whorled
  • 21. Conifers Leaves (needles) in bundles Evergreen and Deciduous Scale and awl-like foliage ID characteristics
  • 22. Deciduous plants Simple Leaves
  • 23.  Compound leaves
  • 24. Leaf Shapes Margins SerrateEntire Lobed
  • 25.  Margins Undulate Doubly serrate
  • 26.  Margins Crenate Dentate
  • 27.  Bases
  • 28.  Leaf tips / Apices
  • 29. Other ID Features Bark Twigs Flowers Branching Smell Taste Physical
  • 30. Dichotomous keys Use leaves and flowers, shapes and colors Guides through a yes/no system Available on-line http://www.dendro.cnre.vt.edu/dendrology/idit.htm
  • 31. Questions?

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