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Task b 2 pine life cycle seed development life cycle

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Unformatted text preview: vey of Gymnosperms Task B­1: Survey of Gymnosperms • Phylum Gnetophyta • odd group of plants • examine dried Ephedra on display • Phylum Coniferophyta • • • Pinus, etc. examine specimens on display more on this group in Task B­ 2 Task B­1: Survey of Gymnosperms Task B­1: Survey of Gymnosperms • fossils • gynmosperms were once very dominant (before angiosperms) • example: most of the palm­tree like plants depicted with dinosaurs are cycads that are prominent in fossils from that time • examine the fossils on display and note similarities with extant gymnosperms • NOTE: not all fossils and prints here are of gymnosperms! • life cycle Task B­2: Pine Life Cycle / Seed Task B­2: Pine Life Cycle / Seed Development • dissect pollen cone (found at your table) • • • • remove one microsporophyll examine under microscope make slide of pollen grains and view them note terms and structures in lab manual • examine cones on display; compare to Figures 4­5 and 4­6 • Examine life cycle in Figure 4­6 • attend TA small group talk • Examine life cycle complete Figure 4­6 • prepared slides Task B­2: Pine Life Cycle / Seed Task B­2: Pine Life Cycle / Seed Development • examine slide of...
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This note was uploaded on 02/24/2009 for the course BIOL 1031 taught by Professor Bowling during the Spring '08 term at Auburn University.

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