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Botany Standard 4: Field Identification

Botany Standard 4: Field Identification. Week 9 Ms. Darlak. Warm-up 05/16. List all the things you can use to identify a plant. Agenda 05/16. Intro to Standard 4 Dichotomous Keys Greenhouse Check Transplants. Standard 4: Field Identification. Requirements. Field Notebook

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Botany Standard 4: Field Identification

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  1. Botany Standard 4: Field Identification Week 9 Ms. Darlak

  2. Warm-up 05/16 • List all the things you can use to identify a plant.

  3. Agenda 05/16 • Intro to Standard 4 • Dichotomous Keys • Greenhouse Check Transplants

  4. Standard 4: Field Identification

  5. Requirements • Field Notebook • Identification of 6 plants with use of a dichotomous key • Extra Credit Voucher Collection

  6. 1 2 3 4 5 6 Dichotomous Keys • Dichotomous means "divided in two parts". • Each step has two choices; what you choose leads you to another question until the item is identified. • Based on physical characteristics.

  7. Dichotomous Key Activity • DARLAK4SCIENCE • Botany Standard 4 • Mystery Tree # • Fill out Tree Information • Practice Keying out all the other trees

  8. Warm-up 05/26 • Using the Key Provided…. Key out this plant to genus and species.

  9. 1. Leaves not spines • 2. Lvs Opposite • 3. Lvs simple • 5. Lvs PALMATELY lobed. • Acer …….GO TO p 202. • 1. Lvs less than 5” • 2. Lobes 5-9, mostly 7, fanlike. • Acer circinatum

  10. Warm-up 05/17What where the major tree characteristics that you used to identify your tree? Broadleaves Needle-like Leaves Single, flat or clustered Clusters of 2 or clusters of 5 Needles less than 2 inches long Needles greater than 2 inches long • Simple or Compound • Alternate or Opposite • Lobed or unlobed • Toothed or not toothed • Paper bark or not

  11. Agenda 05/17 • Make a Dichotomous Key • Key to PNW Broadleaved Trees and Shrubs

  12. 1 2 3 4 5 6 GROUP TASK • Each group gets ONE paper bag • Make a Dichotomous key for ALL the items in the bag. • Follow the Procedures.

  13. PROCEDURES • First make and answer key. • Write the names of your partners and bag # on your ANSWER key. • Assign a number to each object and make up a new name “scientific name” for each object. • Example: #1--------Mollusca minuta (small shell) • May want to trace an outline of the object • Make a dichotomous key for all objects in your bag.

  14. Key Format Example • A. Item is round………………………go to 2 B. Item is not round…………………….go to 3 Better • A. Item flat on 2 sides…………..…go to 2 B. Item is not flat on 2 sides…….go to 5 • A. Item is > than 4 inches in diameter….4 B. Item is < than 4 inches in diameter… 3 • A. Item has “Frozen Four” on one flat side and “Bauer” on the other side of flat side………….Hockey discus. B.Does not have any writing on it….go to 6

  15. Warm-up 05/18 • Use the Key Provided to Key out a leaf. • Write the Leaf # and Species on your sheet.

  16. Agenda 05/18 • Greenhouse • Finish and Grade each others Dichotomous Keys • Intro to PNW Broadleaved Trees and Shrubs • Use the key.

  17. Grading the Keys • Switch bags and keys with another group. • Use their key to identify the items. • Write the scientific name next to the object name. • Give them a grade from 1-10 on their descriptions and accuracy of the items.

  18. Key Vocabulary • < less than • > greater than • Bilateral Symmetry • Radial Symmetry

  19. Key to PNW Broadleaved Trees and Shrubs • Sharp Spines, few leaves, “normal” blades.

  20. Key to PNW Broadleaved Trees and Shrubs • Leaves Opposite • Leaves Alternate

  21. Key to PNW Broadleaved Trees and Shrubs (BLUE) • Leaves Compound • Leaves Simple

  22. Key to PNW Broadleaved Trees and Shrubs (BLUE) • Palmately Lobed • Pinnately Lobed

  23. Warm-up 05/19Key out the following shrub. Entire Twigs Armed, Stems Round, Prickles exfoliate with bark

  24. Answer • 1. Normal Blade • 2. Lvs. Alternate • 16. Lvs Compound • 68. Twigs armed • 69. Entire twig/stem armed • 70. Leaflets lg, 1.5-3.5” usually 3-5 leaflets • Rubus spp p. 184 • 1. Lvs compound, stems armed • 2. Stems round in x-section • 4. Prickles exfoliate with bark • Rubus spectabilis (Salmon Berry)

  25. Agenda 05/19 • Key Practice Together • Pass Back • Germination Lab (Test grade) can resubmit with first draft to improve grade. • Draft Landscape Design (Standard) • Final Draft Due Tues 05/24 • Greenhouse • Check Transplants • Key one plant (Field Notebook Assignment #1)

  26. Warm-up 05/20 • Using the Key Provided…. What tree does this branch belong to? Lvs: < 1.5”, spirally arranged, not on woody pegs

  27. Green Key • 1.Leaves NOT like above, linear, spirally arranged. • 7. Needles individual • 10. Needles evergreen • 11. Needles may be single • 13. Leaves NOT ternate, linear • 14. Leaves < 1.5” long, not sharp • 16. Needles leave distinct leaf scar….. • Pseudotsuga

  28. Agenda 05/20 • Reminders • Germination Lab (Test grade) can resubmit with first draft to improve grade. • Draft Landscape Design (Standard) • Final Draft Due Tues 05/24 • Greenhouse • Check Transplants • Work Day • Library Lab C

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