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Category: Dichotomous Keys

  • Dichotomous Key

    A- Plants with flowers ~> B

    A’- Plants without flowers ~ plant 1

          B- Flowers with petals ~> C

          B’- Flowers without petals ~ plant 4

                C- Petals are white ~ plant 2

               C’- Petals are purple ~ plant 3

     

  • Dichotomous Key

    A Plants that do not have/produce flowers plant 1
    A’ Plants that have/produce flowers
    B Flowers that do have/ produce petals plant
    B’ Flowers that do not have/produce petals plant
    C Plants that have/produce Purple Petals plant 3
    C’ Plants that have/produce white petals plant 2
    D plants with visible pistils or stamens
    D’ plants that lack visible reproductive organs
    E plants that produce/have small flowers plant
    E’ plants that produce/ have large flowers

  • Dichotomous Key

    Gymnosperm…………………………………..Plant 1

    Angiosperm

    • Petals absent…………………………..Plant 4
    • Petals present
      • 4 petals……………………..Plant 2
      • More than 4 petals………Plant 3

  • Dichotomous Key

    Didn’t use a lot of technical terms, but this should still be useable.

    A — Trees

    >>>B – Tree with needles and cones

    A1 — Not Trees

    >>>B – Flowers with blue or white petals

    >>>>>>C – Flowers with blue petals

    >>>>>>C – Flowers with white petals

    >>>B1 – Flowers with lots of pistils(?)

    >>>>>>C – Pubescent leaves

  • Dichotomous Keys

    OK. I am trying this with the four plant pictures now instead of the shoes.   Let’s see if I am on the right track.

    A. Plant is Woody                                         Plant 1

    A’ Plant is Herbaceous
    …..B. Plant produces flowers
    ……….C. Plant with white petals                Plant 2
    ………..C’ Plant with purple petals              Plant 3
    …..B’ Plant does not produce flowers          Plant 4

  • Dichotomous Key Assignment

    A.Plant does not produce flowers….Plant 1

    A’. Plant does produce flowers

    1. Plant does not produce flowers…Plant 4

    B’. Plant produces flowers

    1. Plant produces purple flowers…Plant 3

    C’. Plant does not produce purple flowers

    D. Plant produces white flowers..Plant 2

  • Dichotomous Key

    Dichotomous Key to photos 1-4 Module 2

    A. Plant lacking flowers, leaves needle-like, evergreen,

    cones. ….. Plant 1

    A’.   Plant with flowers, leaves divided into peduncle and expanded blade, deciduous, lacking cones.

    B.   Flowers that lack petals, yellow. …Plant 4

    B’.   Flowers large with pedals, white or blue/violet

    C.   Four pedals per flowers, pedals white …. Plant 2

    C’.   More than four pedals per flower, pedals

    blue/violet … Plant 3

     

  • Dichotomous Key

    A.   Plant produces flowers

              B.   Single flower produced per stem . . . . . . . . . . . . . . . . . . . . . . . . . Plant 3

              B1.   Multiple flowers produced per stem

                          C.   Flowers contain petals . . . . . . . . . . . . . . . . . . . . . . . . . . . Plant 2

                          C1.   Flowers do not contain petals (only stamens) . . . . . . . . . Plant 4

    A1.   Plant does not produce flowers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Plant 1

  • Dichotomous Key Practice – Coffee & Chocolate

    Dichotomous Key

  • Dichotomous Keys-Practice with Shoes

    Hello, I felt the need to practice with my shoes prior to moving onto the plants.   According to the History of Shoes-World Famous Inventors and Inventions, Lyman Reed Blake, an American inventor, invented a sewing machine to sew the modern soles of shoes.   For purposes of my practice here, we shall give him credit for developing the American modern shoe sole.   Let’s see if I have a decent understanding?   Thanks for any input.
    NOTE: the #1 after the letter signifies prime.