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WARM UP “Do not look back and ask why, look forward and ask, why not?” 1. Write two or three sentences about what this means to you. Plant Classification Biology II Taxonomy - Science of Classification • Grouping based on similarity (more similar groups as you work down) – Kingdom • Phylum – Class » Order • Family • Genus • Species Phyla of Plants (Basic Similarities) • Bryophytes – Nonvascular – Spores – Mosses Phyla of Plants (Basic Similarities) • Ferns – Vascular – Spores – Whisk ferns Club mosses Horsetails Ferns Phyla of Plants (Basic Similarities) • Gymnosperms – Vascular – Seeds • Cones – Conifers Cycads Gingko Gnetophytes Phyla of Plants (Basic Similarities) • Angiosperms – Vascular – Seeds • Flowers Dichotomous Keys • Step by step identification guide • Choose one of two traits at each step – Doublets – Need to know traits/terms Dichotomous Keys Plant Traits and Terms (for keys) Coniferous: Needles, evergreen Deciduous: Broadleaf Plant Traits and Terms (for keys) • Branch Organization – Needles • Single • Clustered Plant Traits and Terms (for keys) • Branch Organization – Leaves • Alternate Whorled Opposite Plant Traits and Terms (for keys) • Deciduous leaf type – Simple leaf • One per bud – Compound leaf • Many “leaflets”, one bud – Pinnate (long) – Palmate (like fingers) Plant Traits and Terms (for keys) • Leaf Shape Plant Traits and Terms (for keys) • Leaf Edge – Entire – Toothed – Rounded – Lobed Binomial Nomenclature • After keying or dividing taxa, you need to name each unique thing • Organisms named with genus and species – Ursus americanus – Developed by Carolus Linnaeus WRAP UP • List 3 categories you could use to key out the different types of shoes in the classroom. WARM UP 1. Name at least 6 different types of plants. WRAP UP • Define taxonomy in five words or less. • Compare and contrast mosses and ferns.