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Lab 30 Kingdom Plantae: Gymnosperms

Lab 30 Kingdom Plantae: Gymnosperms. Phylum Coniferopyta (conifers). Largest group of gymnosperms This group includes cypresses, pines, redwoods, firs and junipers Conifer leaves are needle or scale like, adapted to snowy and dry climates Conifers are evergreens.

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Lab 30 Kingdom Plantae: Gymnosperms

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  1. Lab 30Kingdom Plantae: Gymnosperms

  2. Phylum Coniferopyta (conifers) Largest group of gymnosperms This group includes cypresses, pines, redwoods, firs and junipers Conifer leaves are needle or scale like, adapted to snowy and dry climates Conifers are evergreens

  3. Phylum Coniferopyta (conifers) Bristlecone trees are some of the oldest Living organisms…. 5065 years old! Torrey pines are the rarest pine species in the United States

  4. Phylum Coniferopyta (conifers) Sequoias are largest living things They can weigh about 24 blue whales Redwoods are the tallest living things

  5. Phylum Coniferopyta (conifers) Pine nuts are the edible seeds of pines, from 20 different species of pines

  6. Phylum Coniferophyta (Pollen cones and pollen) Procedure 30.2 Sketch each of the following • a pollen cone under the dissecting microscope and label a scale 2) prepared slide of a male cone (dissecting scope) Label one scale and pollen grain 3) Prepared slide of pine pollen grain Answer question 4 c

  7. Phylum Coniferophyta (Ovulate cones and ovules) Procedure 30.3 Sketch each of the following: 1) a seed cone and label a scale 2) prepared slide of Seed cone (dissecting scope) Label one scale and one ovule 3) Sketch prepared slide of pine ovule (dissecting scope) And label egg, megagametophyte, and Integument Answer questions 5 a and b

  8. Phylum Coniferophyta (seed) Procedure 30.4 Pine seed Sketch a seed

  9. Phylum Coniferophyta (Juniper) OBSERVE Pollen cones Seed cones

  10. Phylum Gnetophyta: Ephedra and Welwitschia They have many similarities with angiosperms: - Flower like strobili - Double fertilization Welwitschia live in SW Africa Ephedra is found in the US

  11. Phylum Gnetophyta (Ephedra) Sketch the LIVE Ephedra and Welwitschia

  12. Phylum Ginkgophyta (Ginkgo) Ginkgo biloba is the only surviving species Fan like leaves that turn gold in the fall. Popular in cities because they tolerate air pollution well Sperm are flagellated but confined to a pollen tube Seeds are fleshy

  13. Phylum Ginkgophyta (Ginkgo) Take a trip outside 1) Sketch a Ginko leaf 2) Sketch the strobilus in the classroom

  14. Phylum Cycadophyta (cycads) They are the second largest group of gymnosperms after conifers They have a fern like appearance They have large cones in the center of the plant Cycads thrived during the dinosaur era, today restricted to tropical parts Sperm is flagellated but confined to the pollen tube

  15. Phylum Cycadophyta (cycads) Zamia pumila only native US cycad

  16. Cycads are used in gardens

  17. Phylum Cycadophyta (cycads) Take a trip outside Sketch two different species of cycads Indicate in your handout : How many different species of cycads are planted by the parking lot? In the classroom, Observe the seed strobilus and Pollen strobilus of cycads in the classroom

  18. If you discovered a new plant with fan-shaped leaves and seeds without fruits, you would have found a new kind of • Palm tree • cycad. • conifer. • Ginkgophyta. • cycad. • Fern

  19. Answer questions page 341 1-6

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