Презентация Семенные Растения Билингвальный урок

Vascular Plants with Seeds Vascular Plants with Seeds Two main types 1. Gymnosperms 2. Angiosperms Gymnosperms “naked seed “ plants seeds in cones or scales Includes: 4 phyla1. Phylum Coniferophyta2. Phylum Cycadophyta3. Phylum Ginkgophyta4. Phylum Gnetophyta Phylum Coniferophyta 1. Common name: Conifers 2. Examples: pines, firs, spruces, junipers, larches, yews 3. Needle or scale-like leaves 4. Most of the evergreen trees or shrubs Phylum Cycadophyta Common name: Cycads Example : Cycas Palm-like leaves, lives in tropics Evergreen trees and shrubs Phylum Ginkgophyta Common name : Ginkgoes Example: Ginkgo biloba Only one remaining species Deciduous trees with fan-shaped leaves Fleshy seeds Used as a memory-enhancing food supplement Phylum Gnetophyta Common name: GnetalesExamples : Ephedra, WelwitschiaGymnosperm (“naked seed” shrub or vine with some angiosperm characteristics Welwitschia mirabilis Stimulant used in diet supplement Angiosperms Plants with seeds inside fruits Includes : trees, shrubs, herbs, or vines with flowers One phylum : Phylum Anthophyta rhododendron sage grape vine Phylum Anthophyta Contains two classes: 1. Class Monocotyledones 2. Class Dicotyledones corn bean Phylum Anthophyta 1. Class Monocotyledones (Monocots) A. Examples : palm trees, grasses, lilies, irises, orchids iris Tiger lily orchid Pampas grass palm Class Monocotyledones B. Embryos with one seed leaf (cotyledon) Class Monocotyledones C. Parallel leaf veins Class Monocotyledones D. Flower parts in threes or multiples of three Class Monocotyledones E. Vascular bundles in stems scattered randomly Phylum Anthophyta 2. Class Dicotyledones (Dicots) A. Examples: roses, daisies, most deciduous trees Class Dicotyledones B. Embryos with two seed leaves cotyledons Bean seedling Class Dicotyledones C. Leaf veins in a net-like pattern (palmate or pinnate) Palmate venation Pinnate venation Class Dicotyledones D. Flower parts in groups of four or five Class Dicotyledones E. Vascular bundles in stems arranged in a ring pattern