GENERAL BOTANY Lecture 3

GENERAL BOTANY Lecture 3 - a) parallel b) simple pinnate c)...

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GENERAL BOTANY Lecture 3 - General plant morphology I. Typical plant morphology A. Flowering plants (angiosperms) - Phylum Anthophyta II. Vegetative organs A. Leaves 1. Primary site of photosynthesis (energy) 2. Primary site of organic synthesis 3. Types of leaves a) Simple (single blade) - Osage orange b) Scale - Cedar c) Needle - Pine d) Whorled - Chittamwood e) Compound - Pecan, locust 1) Distinguishing feature between simple and compound a) Look for axillary buds - they do not occur in axils of leaflets 2) Types of compound leaves a) Pinnately (with rachis - "stemlette") - locust b) Palmately (like a palm or hand) - virginia creeper 4. Variations in leaf shape a) Entire (smooth) - Redbud b) Dentate (toothed) - Elm c) Lobed (deeply indented) - Post Oak 5. Leaf pinnation
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Unformatted text preview: a) parallel b) simple pinnate c) simple palmate d) twice pinnate B. Stems 1. Transport of water, minerals, and carbohydrates 2. Plant structure & support 3. Give rise to new leaves and flowers a) Nodes b) Internodes c) Buds (just above leaf at axil - axillary buds) 1) Give rise to shoots C. Roots 1. Absorption of water and minerals 2. Anchor the plant III. Reproductive organs - parts of the flower A. Parts not necessary for reproduction 1. Sepals - small and inconspicuous 2. Petals - large and brightly colored B. Parts necessary for reproduction 1. Stamen - male parts a) Anther b) Filament 2. Pistil (composed of one or more carpels) - female parts a) Stigma b) Style c) Ovary...
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