plant classification l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
PLANT CLASSIFICATION PowerPoint Presentation
Download Presentation
PLANT CLASSIFICATION

Loading in 2 Seconds...

play fullscreen
1 / 10

PLANT CLASSIFICATION - PowerPoint PPT Presentation


  • 460 Views
  • Uploaded on

PLANT CLASSIFICATION. PLANT CLASSIFICATION. How has plant classification evolved? Common name insufficient; limitations in communication Need for uniform and internationally acceptable system Many ways to classify plants

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'PLANT CLASSIFICATION' - paul


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
plant classification2
PLANT CLASSIFICATION

How has plant classification evolved?

  • Common name insufficient; limitations in communication
  • Need for uniform and internationally acceptable system
  • Many ways to classify plants
    • climate; seasons; edible parts; use; foliage, flowers, growth habits, etc.
  • System based on how classification is to be used
plant classification3
PLANT CLASSIFICATION
  • Carolus Linnaeus (1707-1778)

system led to modern taxonomy

  • Modern scientific naming/classification grouped by taxa based on physical characteristics(see link below)

http://www.ext.colostate.edu/pubs/garden/07701.html#top

plant classification4
PLANT CLASSIFICATION
  • Plant taxonomic classification changes with continuing research, so inconsistencies in nomenclature will be found among different textbooks
  • The International Code of Botanical Nomenclature, the rules that govern the naming of plants, currently recognizes seven ranks (see link below)

http://www.bbg.org/gar2/topics/botany/class_intro.html

plant id nomenclature
PLANT ID & NOMENCLATURE
  • Family usually highest taxon in ID or study
  • Latin names; others – Greek, Arabic
  • Names give clues to appearance
    • May also clue characteristics, habitat, person named for, etc.
plant id nomenclature6
PLANT ID & NOMENCLATURE
  • Each plant has a two-word (binomial) name
  • Binomial name will be Latin
  • First name – genus; Second name – species
  • Species is technically “specific epithet”
  • Complete Linnaen names also have authority
    • abbreviated name of scientist who named plant
    • Example: “L.” means Linnaeus
nomenclature guidelines
NOMENCLATURE GUIDELINES
  • Genus (generic name) always capitalized
  • Species (specific epithet) never capitalized
    • Except may be capitalized if a person’s name
  • Either underlined or italicized
  • Authority name is never italicized
  • Listings of several plants in same genus:
    • Full genus name for first, capitalized initial for subsequent plants in list
nomenclature guidelines8
NOMENCLATURE GUIDELINES
  • “sp.” or “spp.” stands for species
  • indicates exact species is not known for the genus being considered
    • “sp.” or “spp.” never underlined or italicized
subspecific categories
SUBSPECIFIC CATEGORIES
  • Botanical Variety
    • “var.” from Latin varietas, “variety”
    • sufficiently different to warrant unique name
  • Cultivar
    • “cv.” from cultivated variety
    • may place cultivar name in single quotes
    • always capitalized; never underlined/italicized
  • Group
    • Many cultivars that are similar
plant id key
PLANT ID KEY
  • Dichotomous Key
    • process of elimination by “yes/no” decisions to characteristics offered in key
    • see pp. 285-286 in text